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BC817-40W

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by adom

FUXINSEMI Bipolar (BJT), SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 20d ago
viewers bc817-40w: viewers · Ray 20d ago
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bc817-40w-hero.glb bc817-40w: hero GLB from the etched model (keeps the MPN mark) · Ray 20d ago
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BC817-40W

FUXINSEMI · Bipolar (BJT) · SOT-323

BC817-40W from FUXINSEMI, in a SOT-323. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 BASE input Base of the NPN transistor; the datasheet gives V(BR)EBO of 5 V minimum (IE=1µA) and VEBO of 5 V maximum.
2 EMITTER passive Emitter of the NPN transistor; the datasheet gives a maximum continuous collector current of 0.5 A.
3 COLLECTOR passive Collector of the NPN transistor; the datasheet gives VCEO of 45 V and VCBO of 50 V maximum, with 0.5 A continuous current.

Key specifications

Parameter Value
Manufacturer FUXINSEMI
Package SOT-323
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: BC817-40W
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: bc817-40w-etched.step / bc817-40w-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bc817-40w.step / bc817-40w.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: FUXINSEMI datasheet (3 pp, sha256 482974197c13133e, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF