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MPSA44G-AB3-R

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UTC Unisonic Tech 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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MPSA44G-AB3-R

UTC Unisonic Tech · Bipolar (BJT) · SOT-89

MPSA44G-AB3-R from UTC Unisonic Tech, 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 B input Base terminal of the MPSA44 NPN transistor, rated for emitter-base breakdown voltage BVEBO of 6 V minimum at IE=100μA.
2 C passive Collector terminal, rated at 300 mA continuous and 1000 mA peak collector current, with VCEO of 400 V for MPSA44 (350 V for MPSA45).
3 E passive Emitter terminal, rated for emitter-base voltage VEBO of 6 V maximum.

Key specifications

Parameter Value
Manufacturer UTC Unisonic Tech
Package SOT-89
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: MPSA44G-AB3-R
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: mpsa44g-ab3-r-etched.step / mpsa44g-ab3-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mpsa44g-ab3-r.step / mpsa44g-ab3-r.glb are the bare package body.

Provenance

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

  • Datasheet: UTC Unisonic Tech datasheet (6 pp, sha256 874be56595ab2005, 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