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A44

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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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A44

Changjing · Bipolar (BJT) · SOT-89-3L

A44 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 terminal of the NPN transistor; the datasheet gives emitter-base breakdown V(BR)EBO of 6 V (IE=10µA, IC=0) and VEBO of 6 V as device-level limits.
2 COLLECTOR passive Collector terminal of the NPN transistor; the datasheet rates collector-base voltage VCBO at 400 V, collector-emitter voltage VCEO at 400 V, and collector current IC at 200 mA continuous (300 mA pulsed).
3 EMITTER passive Emitter terminal of the NPN transistor; the datasheet rates emitter-base voltage VEBO at 6 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: A44
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3L (KiCad packages3D, STEP)
  • 3D model files: a44-etched.step / a44-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); a44.step / a44.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (4 pp, sha256 e0bccb683431a380, 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