component

BCX54

Public Made by Adom

by adom

Nexperia Bipolar (BJT), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 27d ago
viewers bcx54: viewers · Ray 27d ago
bcx54-etched.glb bcx54: factory component page (tier=lcsc) · Ray 27d ago
bcx54-etched.step bcx54: factory component page (tier=lcsc) · Ray 27d ago
bcx54-hero.glb bcx54: hero GLB from the etched model (keeps the MPN mark) · Ray 27d ago
bcx54-hero.overlay.json Publish 0.1.0 · Ray 27d ago
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bcx54.kicad_mod Publish 0.1.0 · Ray 27d ago
bcx54.kicad_sym Publish 0.1.0 · Ray 27d ago
bcx54.lbr Publish 0.1.0 · Ray 27d ago
bcx54.step Publish 0.1.0 · Ray 27d ago
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README.md Publish 0.1.0 · Ray 27d ago

BCX54

Nexperia · Bipolar (BJT) · SOT-89

BCX54 from Nexperia, in a SOT-89. 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 emitter passive Emitter of the NPN transistor; the emitter-base voltage is limited to 5 V (VEBO, open collector) and the collector current to 1 A (IC).
2 collector passive Collector of the NPN transistor, also the exposed die pad for heat transfer; collector-emitter voltage is limited to 45 V (VCEO, open base) and collector current to 1 A (IC, peak 2 A for single pulse tp ≤ 1 ms).
3 base passive Base of the NPN transistor; base current is limited to 0.3 A (IB) and peak base current to 0.3 A (IBM, single pulse tp ≤ 1 ms).

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOT-89
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: BCX54
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: bcx54-etched.step / bcx54-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bcx54.step / bcx54.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (23 pp, sha256 36064037c3d57b9e, retrieved 2026-10-10, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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