component

MMBTA43

Public Made by Adom

by adom

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

componenttransistors-thyristorsmmbta43factory-2.0.0extractor-text
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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 23d ago
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mmbta43-etched.step mmbta43: factory component page (tier=lcsc) · Ray 23d ago
mmbta43-hero.glb mmbta43: hero GLB from the etched model (keeps the MPN mark) · Ray 23d ago
mmbta43-hero.overlay.json Publish 0.1.0 · Ray 23d ago
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MMBTA43

YFW · Bipolar (BJT) · SOT-23

MMBTA43 from YFW, in a SOT-23. 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; emitter-base breakdown voltage V(BR)EBO is 5 V minimum and VEBO max rating is 5 V.
2 EMITTER passive Emitter of the NPN transistor; total collector current IC is rated 500 mA maximum.
3 COLLECTOR passive Collector of the NPN transistor; VCBO and VCEO are both rated 200 V, IC 500 mA maximum, and PC 350 mW.

Key specifications

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

CAD (KiCad official)

  • Symbol: MMBTA43
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbta43-etched.step / mmbta43-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbta43.step / mmbta43.glb are the bare package body.

Provenance

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

  • Datasheet: YFW datasheet (2 pp, sha256 074769bdb5972e4f, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+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