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2SA554

Public Made by Adom

by adom

Changjing Bipolar (BJT), SOT-89-3L. 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 15d ago
viewers 2sa554: viewers · Ray 15d ago
2sa554-etched.glb 2sa554: factory component page (tier=lcsc) · Ray 15d ago
2sa554-etched.step 2sa554: factory component page (tier=lcsc) · Ray 15d ago
2sa554-hero.glb 2sa554: hero GLB from the etched model (keeps the MPN mark) · Ray 15d ago
2sa554-hero.overlay.json Publish 0.1.0 · Ray 15d ago
2sa554.glb Publish 0.1.0 · Ray 15d ago
2sa554.kicad_mod Publish 0.1.0 · Ray 15d ago
2sa554.kicad_sym Publish 0.1.0 · Ray 15d ago
2sa554.lbr Publish 0.1.0 · Ray 15d ago
2sa554.step Publish 0.1.0 · Ray 15d ago
package.json Publish 0.1.0 · Ray 15d ago
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README.md Publish 0.1.0 · Ray 15d ago

2SA554

Changjing · Bipolar (BJT) · SOT-89-3L

2SA554 from Changjing, in a SOT-89-3L. 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 is the control terminal of this PNP transistor; the datasheet gives the emitter-base breakdown voltage V(BR)EBO as -6 V minimum and the absolute VEBO rating as -6 V.
2 COLLECTOR passive Collector is the output terminal; the datasheet gives VCBO and VCEO as -100 V, collector current IC as -2 A, and collector power dissipation PC as 500 mW.
3 EMITTER passive Emitter is the common terminal for the transistor; the datasheet gives the absolute VEBO rating as -6 V and the operating junction and storage temperature range as -55 to +150 °C.

Key specifications

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

CAD (KiCad official)

  • Symbol: 2SA554
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3L (KiCad packages3D, STEP)
  • 3D model files: 2sa554-etched.step / 2sa554-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sa554.step / 2sa554.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (4 pp, sha256 e6ea13ff79c5d04f, retrieved 2026-10-09, 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