{"schemaVersion":1,"slug":"n-channel-depletion-mosfet","name":"N-channel depletion MOSFET","kind":"symbol","abbreviation":"N-DMOS","aliases":["depletion N MOSFET","normally-on MOSFET"],"category":"electronics-components","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"An N-channel insulated-gate device that conducts at zero gate-to-source voltage according to its device characteristics.","description":["An N-channel insulated-gate device that conducts at zero gate-to-source voltage according to its device characteristics.","On a schematic, identify the gate bias needed to reduce conduction and the source reference and trace the bias, current-limiting or switching circuit. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.","Depletion-mode conduction at zero gate bias differs from enhancement mode and changes the circuit's default state.","Terminal letters describe electrical roles, not package pin numbers. Check the selected public datasheet for the actual pin assignment, polarity and any internally connected terminals before completing the drawing."],"readingNotes":["Identify the gate bias needed to reduce conduction and the source reference.","Trace the bias, current-limiting or switching circuit."],"drawingChecklist":["Label the gate bias needed to reduce conduction and the source reference.","Cross-reference the bias, current-limiting or switching circuit.","Add the selected device or circuit documentation revision, power/reference connections and project signal convention."],"distinction":"Depletion-mode conduction at zero gate bias differs from enhancement mode and changes the circuit's default state.","facts":[{"label":"Common schematic mnemonic","value":"N-DMOS — descriptive only; project/device documentation defines reference designations."},{"label":"Terminal / interface focus","value":"The gate bias needed to reduce conduction and the source reference"},{"label":"Artwork scope","value":"Original educational component glyph; not a certified standard graphic or package pinout."}],"references":[{"sourceId":"pub-electronics-depletion-mosfet","relevance":"Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored."}],"related":["n-channel-enhancement-mosfet","diode"],"artwork":"electronics-mos-n-depl","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/n-channel-depletion-mosfet","illustration":{"url":"https://eloragrid.ai/library/illustrations/n-channel-depletion-mosfet.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pub-electronics-depletion-mosfet","title":"DN2540 depletion-mode MOSFET documentation","publisher":"Microchip Technology","url":"https://www.microchip.com/en-us/product/DN2540","type":"manufacturer","scope":"Public depletion-mode MOSFET product documentation. Used to distinguish normally-on depletion operation from enhancement devices, without carrying product settings or package dimensions.","checkedOn":"2026-10-14","reuse":"link-only","relevance":"Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored."}]}