IEC graphical symbols for diagrams
IEC 60617 and related symbol-design publications. Full database access requires a subscription.
Independent public references
Follow the source.
Standards references, public manufacturer information and official CAD resources support this library. Original explanations and illustrations are kept distinct from publisher material.
A public download is not automatically licensed for redistribution. Manufacturer graphics, CAD files and standards content remain at their original sources; original artwork has its own clearly stated scope and licence.
Read the sourcing and illustration policyIEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams
Graphic symbols and designation letters. IEEE lists this edition as Inactive-Reserved; it is a historical reference, not a claim of current compliance.
IEEE C37.2-2022: power-system device function numbers
Device function numbers, acronyms and contact designations. The full publication may require access through IEEE.
IEC copyright and database reproduction conditions
Distinguishes engineering use from reproduction of IEC publications and substantial database replication.
IEC-60617 symbol preview directory
Public reference directory of named symbol categories. Vendor graphics and CAD library files are not redistributed here.
Current transformer symbol variants
Current transformers, secondaries and conductor indications; vendor block identifiers are distinct from IEC symbol identifiers.
Relays and contacts: public symbol reference
Normally open, normally closed and changeover contacts, relay coils and latching relay variants.
Pushbutton contact and actuator variants
Momentary and latching pushbuttons, normal contact states and mushroom actuators.
Pilot lights: public symbol reference
Pilot-light and indication variants. A symbol alone does not establish the indicated operating condition.
Terminal symbol and numbering variants
Terminal representations with terminal numbers and wire-number variants.
Generator symbol variants
DC and three-phase synchronous generator categories.
Resistors and heater-element symbols
Fixed and variable resistive components, shunts and heater elements.
Circuit-breaker symbol variants
Circuit-breaker variants and thermal, magnetic and differential qualifiers.
Fuse and neutral-link symbols
Fuses, auxiliary contacts, indication and open/closed neutral-link variants.
Power, potential and autotransformer symbols
Power transformers, voltage transformers, winding counts, screens and autotransformers.
Selector-switch contact and operating variants
Maintained and returning selector-switch positions and associated contacts.
Three-phase motor symbol variants
Motor variants including asynchronous, synchronous and connection-count differences.
PLC input and output point symbols
Input/output point and wiring-count variants. Electrical module specifications are manufacturer-specific.
Capacitive component symbols
Capacitor, electrolytic, feedthrough and adjustable component variants.
Elementary switching devices
Explains disconnectors, load-break switches, contactors and fuses. The manufacturer diagrams remain at the source.
Fundamental characteristics of a circuit-breaker
Voltage, current, tripping and breaking-capacity concepts; not a product selection or settings prescription.
Form factors of residual-current devices
Residual-current functions in different device forms and related product standards.
Indoor current and voltage transformers
Public current- and voltage-transformer product families. Ratings, terminals and dimensions depend on the model.
Relion 620: functions, codes and symbols
Published product mappings between function names, IEC 61850 identifiers, IEC mnemonics and ANSI designations. These are product examples, not universal equivalences.
Public reference table of ANSI device-function numbers
Spanish-language public reference table. Used to check device-number names; no claim that every function is implemented in every device.
Official CAD drawings and BIM resources
Manufacturer CAD/BIM directory for model-specific equipment. Download terms remain with the publisher.
Secondary-distribution switchgear and ring main units
Public equipment families for secondary distribution. Footprints and ratings must come from the chosen model.
Disconnect and knife-disconnect terminal blocks
Public disconnect-terminal products, test access and model-dependent connection characteristics.
Transformer terminals for measuring and test circuits
Current-transformer test terminals and leading short-circuit arrangements. Use the selected product's instructions for any intervention.
Transfer switch fundamentals
Public educational presentation about source transfer. Manufacturer graphics and complete circuits are not redistributed.
Generator switchgear and paralleling controls
Public description of generator switchgear, controls and system interfaces.
Battery energy storage and power conversion
Explains battery storage and the power-conversion interface. Product-specific installation requirements remain with the manufacturer.
xStorage battery energy storage system
Public example of battery cabinets, power conversion and control equipment within a storage system.
Enclosure mounting plates
Public mounting-plate accessories and enclosure installation surfaces.
AX enclosure system
Public enclosure system with mounting and earthing features. No model-specific dimensions are reproduced here.
Cable tray and ladder systems
Public cable-management families and official support-system resources.
Cable-support CAD and BIM specifier resources
Official directory of cable-support design content. Assets are linked rather than redistributed.
Canalis busbar trunking systems
Public transport and distribution applications for busbar trunking. Select the exact system before using its dimensions.
ANSI device-number and suffix reference table
Public Portuguese-language base-number and application-suffix table. Used to cross-check public number associations. Application-specific and historical labels need the selected drawing legend; this table is not a substitute for the licensed IEEE standard.
SecoGear medium-voltage switchgear application and technical guide, DET-882
Public switchgear application guide with a device-number reference table. Used to cross-check 54, 61, 62 and specialist labels. Text, photographs and manufacturer diagrams are linked only and are not redistributed.
Relion 620 series: published protection function and designation mappings
Manufacturer mapping of function names, IEC identifiers and ANSI labels. These are examples for a documented product family, not universal equivalences between standards or products.
ETR-4000 and ETR-5000 transformer protection function tables
Public transformer-relay mappings including restrained/unrestrained differential, restricted ground differential, main and auxiliary voltage inputs, and measured/calculated earth-current inputs.
EMR motor protection: public function comparison
Public motor-relay application mappings including jam/stall protection, current input variants, breaker failure and motor differential. Suffix interpretation applies to the cited family.
EGR-5000 generator protection: public function overview
Public generator-relay application reference. Detailed protection function mapping is also published in the E-Series brochure; naming does not establish the selected device configuration.
E-Series protective relays: public family comparison brochure
Public function-name and suffix mappings across feeder, motor, transformer and generator relays. Linked as documentation only; no illustrations or product drawings are copied.
Generator protection feature and function comparison
Public mappings for generator functions, including phase distance, field/stator ground, thermal RTD, sequence-current and vector-shift applications. Product availability depends on model/options; no settings are provided here.
SEL-321 phase and ground distance relay documentation
Manufacturer documentation landing page for phase and ground distance protection. The legacy product is referenced to explain the measurement roles, not to recommend it for a new project.
SEL-411L line differential protection overview
Public explanation of communication-assisted line current differential protection and the associated terminal measurements. Product diagrams and technical papers remain on the publisher site.
SEL 2022 Product and Solution Guide: published protection function tables
Public historical product guide documenting 21P phase distance and 21G ground distance mappings among other line-protection functions. Referenced for terminology, not current product availability or a product recommendation.
AutoCAD Electrical: Illuminated push buttons
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Three-position selectors
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Four-position selectors
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Additional circuit-breaker poles
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Power semiconductor switches
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Fusible disconnects
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Disconnector variants
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Reactors and inductors
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Fuse switches
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Three-phase transformer connections
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Relay suppression components
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Current monitoring relays
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Voltage monitoring relays
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Counter relays
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Miscellaneous monitoring relays
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Time-delay relays
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Motor control and overloads
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Single-phase motors
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: DC motors
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Transformer-fed indicator lamps
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Push-to-test lamps
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: LED lamps
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Flashing beacons
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Rotating beacons
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Connectors
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Limit switches
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Pressure and temperature switches
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Inductive proximity switches
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Capacitive proximity switches
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Magnetic proximity switches
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Photoelectric emitter/receiver switches
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Level, flow, keyed and measurement switches
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Instrumentation and sensors
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Winding arrangements and AC/DC indications
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Photovoltaic generator representation
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Semiconductor components
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Earthing, sources and surge protection
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Splice symbols
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: Power station and substation concepts
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
AutoCAD Electrical: One-line load and receptacle
Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.
Residual current device categories
Public manufacturer explanation of the equipment function and selection context.
Circuit breakers and switches
Public manufacturer explanation of the equipment function and selection context.
Terminal block functional families
Public manufacturer explanation of the equipment function and selection context.
Sensor and actuator terminal wiring
Public manufacturer explanation of the equipment function and selection context.
AC/DC power supplies and DC/DC converters
Public manufacturer explanation of the equipment function and selection context.
DC UPS, AC UPS and capacitor buffer modules
Public manufacturer explanation of the equipment function and selection context.
PV system equipment and string connection layouts
Public manufacturer explanation of the equipment function and selection context.
Photovoltaic technology and inverter functions
Public manufacturer explanation of the equipment function and selection context.
Residual current and neutral-earthing protection context
Public manufacturer explanation of the equipment function and selection context.
Modicon TM3 digital I/O hardware guide
Public manufacturer explanation of the equipment function and selection context.
Modicon TM3 analog I/O hardware guide
Public manufacturer explanation of the equipment function and selection context.
Power and energy measurement quantities
Public manufacturer explanation of the equipment function and selection context.
Analog current signal isolation
Public manufacturer explanation of the equipment function and selection context.
RTD and thermocouple temperature transducer inputs
Public manufacturer explanation of the equipment function and selection context.
Control cabinet components and automation products
Public component categories for supply, control, communication, protection and connection; no exact-model ratings are inferred.
Terminal-block types and assembly accessories
Public terminal-block categories and manufacturer assembly information; selected product documentation controls dimensions and connection details.
Official product-line CAD drawing index
Manufacturer/supplier index identifies the named product lines. Only product identity and links are used; archives, drawings and vendor copyright material are not reproduced.
Distribution and control: official CAD data
Official Americas product-family and model listing. Consult exact catalogue number and current regional availability; vendor drawings remain at the source.
TDK-Lambda official mechanical drawing catalogue
Official model and family names in the drawing catalogue. A shared outline for xx output variants does not establish an exact voltage variant.
DIN-rail power supply, buffer, redundancy and UPS families
Public functional classification of DIN-rail product families; exact model selection and technical values remain in the data sheet.
QS20.241 DIN-rail power supply
Official QS20.241 product information and manufacturer drawing resources.
Official product ranges A–Z
UK public range identity and product-family links, including legacy flags. Publication here does not imply availability or approvals in another country.
MiCOM official CAD drawing collection
Official public relay-family CAD resource. Existing and current MiCOM variants must be distinguished by model and document revision.
ABB low-voltage switchgear portfolio
Public low-voltage assembly family descriptions. Project configuration determines footprint and enclosure interfaces.
UniGear medium-voltage switchgear portfolio
Official primary-distribution air-insulated switchgear family; no project-specific layout or dimensions reproduced.
Low-voltage switchgear compartment fundamentals
Public descriptions of breaker, bus and cable compartments. Illustrations here are independent spatial concepts.
T-030 liquid-cooled generator set application manual
Public manufacturer application manual, Issue 9, February 2015; context for generator integration. Current selected-generator documentation and applicable regulations control implementation.
Official Victron product documentation directory
Public names and official product/manual resources for inverter, charger, storage, metering and control families. Product suitability and installation geometry require selected-model documentation.
Ventilation product families
Public fans, louvers, dampers and ventilation categories. Airflow, pressure, fire performance and dimensions are project and product specific.
Air-control product categories
Official product navigation for fire/smoke/backdraft/control dampers and louvers; classification links are not certification claims.
Optidrive Eco official support resources
Official variable-frequency-drive family resources and frame-dependent CAD packages.
Legacy TemBreak 1 product and family drawings
Official Australian supplier page and linked TemBreak 1 family assets. Legacy product listing, not a recommendation for new procurement.
TemPower official air-breaker outline CAD catalogue
Manufacturer outline-drawing resource for TemPower AT air circuit-breaker configurations; exact breaker, poles and installation method must be selected.
Electrical installation design methodology and references
Public design context. No universal working clearance, equipment dimension or project compliance conclusion is asserted.
MultiPlus-II official product and documents
Public product-family identity and official mechanical/document resources; no vendor geometry reproduced.
Quattro official product and documents
Public product-family identity and official mechanical/document resources; no vendor geometry reproduced.
SmartSolar MPPT RS official product and documents
Public product-family identity and official mechanical/document resources; no vendor geometry reproduced.
Cerbo GX official product and documents
Public product-family identity and official mechanical/document resources; no vendor geometry reproduced.
Lynx Distributor official product and documents
Public product-family identity and official mechanical/document resources; no vendor geometry reproduced.
Lynx Smart BMS NG official product and documents
Public product-family identity and official mechanical/document resources; no vendor geometry reproduced.
Lithium NG Batteries official product and documents
Public product-family identity and official mechanical/document resources; no vendor geometry reproduced.
SmartShunt official product and documents
Public product-family identity and official mechanical/document resources; no vendor geometry reproduced.
Skylla-IP65 official product and documents
Public product-family identity and official mechanical/document resources; no vendor geometry reproduced.
Multi RS Solar official product and documents
Public product-family identity and official mechanical/document resources; no vendor geometry reproduced.
MultiPlus-II 2x 120V official product and documents
Public product-family identity and official mechanical/document resources; no vendor geometry reproduced.
DIN35 adapter official product and documents
Public product-family identity and official mechanical/document resources; no vendor geometry reproduced.
iE 250 controller documentation
Official controller and iE local display documentation. Verify base/front mounting and installed I/O options before selecting the drawing.
PS2-60 power supply support
Official support page names the device PS2-60; the URL slug ps-260 is not used as an alternate model number.
Lynx 5612-E-F4G-T8G-LV support
Official model-specific industrial switch support and mechanical resources.
BGPSW 15 ST official generator-set configuration
Public configuration identity and manufacturer document route; ratings and dimensions are not copied into the generic drawing preview.
DGB 415 ST official generator-set configuration
Public configuration identity and manufacturer document route; ratings and dimensions are not copied into the generic drawing preview.
Industrial fan product families
Official named fan families. Dimensions, operating duty and mounting options are selected per size and configuration.
Sidewall fan families
Official wall-mounted fan names and arrangements; no airflow ratings or certification claims are inferred.
Stationary louver families
Official ESD louver identities; aperture, drainage, free area and installation are model and size specific.
Official louver CAD directory
Official AFL-501 and related model drawing routes. Vendor CAD remains on the manufacturer site.
Official damper CAD directory
Official named fire/smoke damper drawing routes; selected installation and approvals must be checked.
FSD-311 combination fire-smoke damper
Public model identity, product documentation and installation resources. No certification of an external project is implied.
Neutral grounding resistor and transformer resources
Official neutral-grounding equipment classification and installation references; no generic enclosure is presented as a verified product outline.
Fan selection reference guide
Official named fan families, including inline and axial arrangements; model names only, no copied drawings or performance tables.
FD-150 static-rated fire damper
Official FD-150 identity and selected installation documents. The educational envelope supplies no fire rating or dimensional certification.
Elastimold underground cable accessories
Manufacturer overview of separable connections, cable joints, terminations, grounding and underground cable accessories. Product selection remains application-specific.
PowerLogic ION9000 user manual
Public manufacturer documentation for the installation, operation and configuration of an advanced energy and power-quality meter. Exact functions and terminals depend on the selected model.
CPB capacitor voltage transformer
Public manufacturer description of a capacitor voltage transformer for high-voltage metering, protection and power-line carrier applications. Exact model data remains with the publisher.
CCV/CVT and coupling capacitors brochure
Public explanation of capacitive sections, electromagnetic unit, terminal arrangements and the distinction from a coupling capacitor. Original publisher graphics are not reproduced.
Autodesk IEEE Symbol Preview — 1 Pole Circuit Breakers
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Disconnect 1 Pole
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Fusible Disconnects
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Fuses
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Fuse Switches
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Current Transformers
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Transformers
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Reactors
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Relays and Contacts
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Relays with Suppression
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Time Delay Relays
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Motor Control
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Push Buttons
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Illuminated Push Buttons
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Selector Switches
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — 3 Position Selector Switches
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — 4 Position Selector Switches
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Limit Switches
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Pressure and Temperature Switches
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Miscellaneous Switches
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Terminals
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Connectors - No Wirenumber Changes
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Splice Symbols
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Miscellaneous
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Resistive Components
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Capacitive Components
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Semiconductor Components
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Instrumentation and Sensors
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — 1 Phase Motors
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — 3 Phase Motors
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — DC Motors
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Generators
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Pilot Lights
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Transformer Lights
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — Push to Test Lights
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEEE Symbol Preview — LEDs
Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.
Autodesk IEC-60617 preview: Operating-device and function qualifiers
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Linear force and motion qualifiers
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Rotary force and motion qualifiers
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Propagation and signal-flow qualifiers
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Energy-flow qualifiers
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Physical-effect qualifiers
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Radiation qualifiers
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Fault-location and insulation-failure indications
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Mechanical return and interlock qualifiers
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Latching-device qualifiers
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Mechanical coupling qualifiers
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Ultrasonic switch forms
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Touch-switch forms
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Solenoid actuator and feedback forms
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Cable identification and twisted-pair annotation
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Single and duplex power-receptacle forms
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Generic device boundary forms
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Standalone source and destination cross-references
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Reference-only wire arrows
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Electroacoustic annunciation forms
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: One-line connector representation
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: One-line terminal representation
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: One-line cable-marker representation
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: One-line bus-tap representation
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Autodesk IEC-60617 preview: Connector forms that change wire numbers
Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.
Wire connection dots, crossing gaps and loops
Public drafting-tool documentation. The annotation is a connectivity or identification convention, not a verified IEC standard graphic.
Transformer vector-group interpretation in protection application
Public manufacturer technical context distinguishes transformer winding types, clock numbers and measurement compensation. Used for interpretation, not to supply protection settings or a standard database graphic.
AD4682 — analogue-to-digital conversion
Public component description and documentation for analogue-to-digital conversion. Used to support the functional reference, not to prescribe a circuit or redistribute product diagrams.
TLV3201 — voltage comparison
Public device-function and terminal documentation used as an example of voltage comparison. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
AD8418 — shunt-current sensing
Public component description and documentation for shunt-current sensing. Used to support the functional reference, not to prescribe a circuit or redistribute product diagrams.
AD5686R — digital-to-analogue conversion
Public component description and documentation for digital-to-analogue conversion. Used to support the functional reference, not to prescribe a circuit or redistribute product diagrams.
AD8276 — difference amplification
Public component description and documentation for difference amplification. Used to support the functional reference, not to prescribe a circuit or redistribute product diagrams.
AD620 — instrumentation amplification
Public component description and documentation for instrumentation amplification. Used to support the functional reference, not to prescribe a circuit or redistribute product diagrams.
AD633 — analogue multiplication
Public component description and documentation for analogue multiplication. Used to support the functional reference, not to prescribe a circuit or redistribute product diagrams.
ADA4522-1 — operational amplification
Public component description and documentation for operational amplification. Used to support the functional reference, not to prescribe a circuit or redistribute product diagrams.
University tutorials: amplifier configurations and signal processing
Public tutorial index including inverting amplifier, rectification and related analogue function references. Detailed product design must use the underlying selected circuit documentation.
AD8436 — RMS-to-DC conversion
Public component description and documentation for rms-to-dc conversion. Used to support the functional reference, not to prescribe a circuit or redistribute product diagrams.
AN-1515: sample-and-hold function using an analogue switch
Public application note establishing the sample-and-hold acquisition function. No complete manufacturer example circuit or component values are reproduced.
ADR4525 — series voltage reference
Public component description and documentation for series voltage reference. Used to support the functional reference, not to prescribe a circuit or redistribute product diagrams.
ADA4530-1 — electrometer and current-to-voltage acquisition
Public component description and documentation for electrometer and current-to-voltage acquisition. Used to support the functional reference, not to prescribe a circuit or redistribute product diagrams.
AD650 — voltage/frequency conversion
Public component description and documentation for voltage/frequency conversion. Used to support the functional reference, not to prescribe a circuit or redistribute product diagrams.
TIP120/TIP125 complementary Darlington transistor documentation
Public manufacturer explanation and diagrams of NPN and PNP compound Darlington devices. Educational geometry is independently drawn; package drawings are not rehosted.
DN2540 depletion-mode MOSFET documentation
Public depletion-mode MOSFET product documentation. Used to distinguish normally-on depletion operation from enhancement devices, without carrying product settings or package dimensions.
ISO7741 — capacitive digital isolation
Public device-function and terminal documentation used as an example of capacitive digital isolation. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
TPS2663 — integrated electronic-fuse power protection
Public device-function and terminal documentation used as an example of integrated electronic-fuse power protection. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
UCC27714 — high-side and low-side gate drive with bootstrap context
Public device-function and terminal documentation used as an example of high-side and low-side gate drive with bootstrap context. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
Integrated gate-commutated thyristor devices
Public high-power switching device and integrated gate-unit reference. Used as advanced converter context; no product drawings or gate-unit design files are copied.
LTC4215 — hot-swap power-path control
Public component description and documentation for hot-swap power-path control. Used to support the functional reference, not to prescribe a circuit or redistribute product diagrams.
LM74700-Q1 — ideal-diode controller
Public device-function and terminal documentation used as an example of ideal-diode controller. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
GaN HEMT structure and operating-mode overview
Public primary explanation of enhancement-mode versus normally-on HEMT behaviour. No claim that a generic MOSFET glyph establishes GaN material or gate limits.
IGBT device families
Public insulated-gate bipolar transistor family documentation. Ratings, antiparallel diode configuration and gate-drive requirements remain device-specific.
Bidirectional three-/single-phase AC/DC PFC and inverter application note
Public application context for actively switched AC/DC and inverter stages. Independent miniature topology illustrations have no copied product-specific values, wiring layouts or control implementation.
Power semiconductor module families
Public module descriptions and topology documentation, including switching-leg and bridge arrangements. No packaged-module terminal map, dimensioned outline or thermal rating is reproduced.
Multilevel NPC converter application context
Public explanation of two-level and neutral-point-clamped converter contexts. The catalogue indicates a split-link/clamping concept; it is not an exact standard circuit or a selected module internal diagram.
UCC21750 — isolated gate-driver interfaces
Public device-function and terminal documentation used as an example of isolated gate-driver interfaces. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
J111/J112 JFET chopper transistor documentation
Public N-channel JFET example and terminal-reference documentation. The generic concept is not a recommendation to use a particular product or historical part.
JFET master table with explicit P-channel device classification
Public primary manufacturer table identifying P-channel and N-channel device families. Referenced for device-type evidence; table values and package geometry are not reproduced.
UCC27524 — low-side gate-drive interfaces
Public device-function and terminal documentation used as an example of low-side gate-drive interfaces. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
Diode families and public diode documentation
Public diode family descriptions including Schottky devices. Only component concepts and links are used; manufacturer illustrations remain on the publisher site.
MOSFET families and application documentation
Public MOSFET device and application information, including intrinsic body-diode context. The generic artwork does not establish an accessible bulk terminal or a selected package pinout.
BC847 NPN transistor documentation
Public NPN transistor terminal and component reference. The catalogue supplies no manufacturer package pinout or product-rating substitute.
BC856/BC857/BC858 PNP transistor documentation
Public complementary PNP transistor reference. Terminal roles and component polarity are used without copying the datasheet artwork.
ESD protection and TVS device families
Public documentation of transient-protection families. The educational entry does not assert a clamping rating or protected-equipment qualification.
BAP64-02 silicon PIN diode documentation
Public PIN diode description, terminal roles and RF switching/attenuation context. Product diagrams and device ratings are linked only.
BB181 variable-capacitance diode documentation
Public historical component reference for a variable-capacitance diode, with anode/cathode roles and tuning applications. Used for terminology, not current product availability or a design recommendation.
Basic Linear Design, Chapter 8: analogue filter response families
Public primary handbook context for low-pass, high-pass, band-pass and band-rejection responses. The miniature response sketches are original conceptual illustrations, with no claimed cutoff, order or component values.
CD4051B — analogue channel multiplexing
Public device-function and terminal documentation used as an example of analogue channel multiplexing. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
CD4066B — analogue bilateral switching
Public device-function and terminal documentation used as an example of analogue bilateral switching. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
CD4017B — decoded decade counters
Public device-function and terminal documentation used as an example of decoded decade counters. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
CD4046B — phase-locked loops and voltage-controlled oscillators
Public device-function and terminal documentation used as an example of phase-locked loops and voltage-controlled oscillators. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
CDCE913 — clock-generation interfaces
Public device-function and terminal documentation used as an example of clock-generation interfaces. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
TIDA-010054: bidirectional dual-active-bridge reference design
Public DAB system topology and interface reference. Only an independently described functional topology is included; design files, drawings and product ratings remain on the publisher site.
Differentiator circuit reference, SBOA276
Public differentiating-amplifier function and bandwidth context. No component values, complete design or manufacturer drawing is copied.
THS4551 — fully differential amplification
Public device-function and terminal documentation used as an example of fully differential amplification. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC00 — NAND gate logic
Public device-function and terminal documentation used as an example of nand gate logic. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC02 — NOR gate logic
Public device-function and terminal documentation used as an example of nor gate logic. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC04 — digital inverters
Public device-function and terminal documentation used as an example of digital inverters. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC08 — AND gate logic
Public device-function and terminal documentation used as an example of and gate logic. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC112 — negative-edge JK flip-flops
Public device-function and terminal documentation used as an example of negative-edge jk flip-flops. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
CD74HC123 — retriggerable monostables
Public device-function and terminal documentation used as an example of retriggerable monostables. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC125 — three-state buffers
Public device-function and terminal documentation used as an example of three-state buffers. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC138 — binary decoding and demultiplexing
Public device-function and terminal documentation used as an example of binary decoding and demultiplexing. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC14 — Schmitt-trigger inverters
Public device-function and terminal documentation used as an example of schmitt-trigger inverters. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC148 — priority encoding
Public device-function and terminal documentation used as an example of priority encoding. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC151 — digital multiplexing
Public device-function and terminal documentation used as an example of digital multiplexing. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC163 — synchronous binary counters
Public device-function and terminal documentation used as an example of synchronous binary counters. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC164 — serial-in parallel-out shift storage
Public device-function and terminal documentation used as an example of serial-in parallel-out shift storage. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC165 — parallel-load serial shift storage
Public device-function and terminal documentation used as an example of parallel-load serial shift storage. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC245 — bidirectional bus transceivers
Public device-function and terminal documentation used as an example of bidirectional bus transceivers. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC266 — XNOR gate logic
Public device-function and terminal documentation used as an example of xnor gate logic. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
CD74HC283 — binary full adders
Public device-function and terminal documentation used as an example of binary full adders. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC32 — OR gate logic
Public device-function and terminal documentation used as an example of or gate logic. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC373 — transparent D latches
Public device-function and terminal documentation used as an example of transparent d latches. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC393 — ripple binary counters
Public device-function and terminal documentation used as an example of ripple binary counters. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC595 — shift registers with separate output storage
Public device-function and terminal documentation used as an example of shift registers with separate output storage. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC74 — positive-edge D flip-flops
Public device-function and terminal documentation used as an example of positive-edge d flip-flops. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
CD74HC85 — digital magnitude comparators
Public device-function and terminal documentation used as an example of digital magnitude comparators. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74HC86 — XOR gate logic
Public device-function and terminal documentation used as an example of xor gate logic. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
Integrator circuit reference, SBOA275
Public integrating-amplifier circuit explanation. Educational geometry indicates feedback roles, not a validated buildable implementation.
AMC1301 — isolated analogue amplification
Public device-function and terminal documentation used as an example of isolated analogue amplification. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
UCC256404 — LLC resonant-converter control
Public device-function and terminal documentation used as an example of llc resonant-converter control. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74LS07 — open-collector output buffers
Public device-function and terminal documentation used as an example of open-collector output buffers. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74LS279A — set-reset latches
Public device-function and terminal documentation used as an example of set-reset latches. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74LS280 — odd/even parity generation and checking
Public device-function and terminal documentation used as an example of odd/even parity generation and checking. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74LVC1G17 — non-inverting Schmitt buffers
Public device-function and terminal documentation used as an example of non-inverting schmitt buffers. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
SN74LVC1T45 — digital voltage-domain translation
Public device-function and terminal documentation used as an example of digital voltage-domain translation. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
LM13700 — operational transconductance amplification
Public device-function and terminal documentation used as an example of operational transconductance amplification. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
Precision full-wave signal rectification reference
Public active signal-rectifier circuit description. Only the function is explained; the manufacturer’s selected complete circuit, values and simulation files are not rehosted.
TL431 — programmable shunt references
Public device-function and terminal documentation used as an example of programmable shunt references. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
Power topology selection and public topology tutorials
Public tutorials identifying buck, boost, buck-boost, SEPIC, Cuk, Zeta, flyback, forward, push-pull and bridge conversion arrangements. Catalogue previews are conceptual topology/function blocks, not certified standard glyphs or complete power-stage schematics.
TPS3431 — watchdog timing supervision
Public device-function and terminal documentation used as an example of watchdog timing supervision. Example part numbers are manufacturer identifiers, not IEC/IEEE symbol IDs. Device ratings, pin numbering and availability remain in the selected product documentation.
Visible LED component families
Public LED family and component documentation. A bare component reference is distinct from an assembled panel indicator.
IL300 linear photodiode optocoupler documentation
Public optical emitter/detector feedback arrangement. The educational block indicates optical isolation and does not reproduce the dual-detector product pinout or certify linearity.
BPW77 silicon NPN phototransistor documentation
Public detector documentation identifying NPN transistor action and terminal roles. Optical package geometry and measurement curves remain on the publisher site.
Optocoupler output-family reference
Public family information for phototransistor and other optocoupler outputs, including application documentation. Isolation ratings and output operating method must be selected from the actual device.
VOM1271 photovoltaic MOSFET driver documentation
Public photovoltaic optocoupler gate-drive reference. Input/output relationships are described independently; the manufacturer’s circuit diagrams are linked only.