component

BCW71

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 bcw71: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers bcw71: symbol viewer · Ray
bcw71-etched.fit.json bcw71: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
bcw71-etched.glb bcw71: one-pass backfill (symbol Device:Q_NPN, re-etched, hero rebuilt in-pass (inputs changed)) · Ray
bcw71-etched.step bcw71: one-pass backfill (symbol Device:Q_NPN, re-etched, hero rebuilt in-pass (inputs changed)) · Ray
bcw71-hero.glb bcw71: hero from the plain model · Ray
bcw71-hero.overlay.json bcw71: hero from the plain model · Ray
bcw71.glb Publish 0.1.0 · Ray
bcw71.kicad_mod Publish 0.1.0 · Ray
bcw71.kicad_sym bcw71: one-pass backfill (symbol Device:Q_NPN, re-etched, hero rebuilt in-pass (inputs changed)) · Ray
bcw71.lbr bcw71: one-pass backfill (symbol Device:Q_NPN, re-etched, hero rebuilt in-pass (inputs changed)) · Ray
bcw71.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/bcw71 · Ray

BCW71

Nexperia · Bipolar (BJT) · SOT-23

BCW71 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 Base input Base terminal; controls collector current with maximum peak base current IBM = 200 mA.
2 Emitter passive Emitter terminal; maximum emitter-base voltage VEBO = 5 V.
3 Collector passive Collector terminal; maximum collector current IC = 100 mA and maximum collector-emitter voltage VCEO = 45 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: BCW71
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bcw71-etched.step / bcw71-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bcw71.step / bcw71.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (7 pp, sha256 17970b7d1101737a, retrieved 2026-09-23, 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