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BC817-40-QR

Public Made by Adom

by adom

Nexperia Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with kicad-footprint-generator 10.0 · KiCad file format 20260206
Name Last commit message Last updated
docs bc817-40-qr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers bc817-40-qr: symbol viewer · Ray
bc817-40-qr-etched.fit.json bc817-40-qr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
bc817-40-qr-etched.glb bc817-40-qr: one-pass backfill (symbol Device:Q_NPN, re-etched, hero rebuilt in-pass (inputs changed)) · Ray
bc817-40-qr-etched.step bc817-40-qr: one-pass backfill (symbol Device:Q_NPN, re-etched, hero rebuilt in-pass (inputs changed)) · Ray
bc817-40-qr-hero.glb bc817-40-qr: hero from the plain model · Ray
bc817-40-qr-hero.overlay.json bc817-40-qr: hero from the plain model · Ray
bc817-40-qr.glb Publish 0.1.0 · Ray
bc817-40-qr.kicad_mod Publish 0.1.0 · Ray
bc817-40-qr.kicad_sym bc817-40-qr: one-pass backfill (symbol Device:Q_NPN, re-etched, hero rebuilt in-pass (inputs changed)) · Ray
bc817-40-qr.lbr bc817-40-qr: one-pass backfill (symbol Device:Q_NPN, re-etched, hero rebuilt in-pass (inputs changed)) · Ray
bc817-40-qr.step Publish 0.1.0 · Ray
package.json Publish 0.1.1 · Ray
page.json Publish 0.1.1 · Ray
README.md Initial commit: component/bc817-40-qr · Ray

BC817-40-QR

Nexperia · Bipolar (BJT) · SOT-23

BC817-40-QR from Nexperia, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 B input Base electrode for transistor control with maximum emitter-base voltage of 5 V and maximum peak base current of 200 mA (tp ≤ 1 ms).
2 E passive Emitter electrode providing the current return path in the NPN transistor.
3 C passive Collector electrode with maximum continuous current of 500 mA and maximum peak collector current of 1 A (tp ≤ 1 ms).

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOT-23
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: BC817-40-QR
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bc817-40-qr-etched.step / bc817-40-qr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bc817-40-qr.step / bc817-40-qr.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (13 pp, sha256 38853c63a5ce63b1, retrieved 2026-09-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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