R
Resistor
A resistive component with its value and purpose documented separately.
Schematic
Symbols · ZD
Zener diode
A Zener diode is a semiconductor component intended for a documented reverse-breakdown operating function.
Schematic · ZD
What it represents
A Zener diode is a semiconductor component intended for a documented reverse-breakdown operating function. The schematic identifies its polarity and the associated current-limiting or bias circuit.
How to read it
- Check the reference voltage and power rating of the selected component.
- The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation.
Information to show or reference
- State rated breakdown voltage
- Show polarity
- Reference current-limiting network
A distinction that matters
A Zener diode's specified breakdown function differs from an ordinary rectifier diode's intended service.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
AutoCAD Electrical: Semiconductor components
Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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