component
A44
Public Made by Adomby adom
Changjing Bipolar (BJT), SOT-89-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownA44
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);a44.step/a44.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).