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MPSA94U

CBI · Bipolar (BJT) · SOT-89

MPSA94U from CBI, 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 of the PNP transistor; Emitter-Base voltage limited to -6 V max (-VEBO) and emitter-base breakdown -V(BR)EBO min 6 V at -IE = 10 µA.
2 C passive Collector of the PNP transistor; rated -VCEO 400 V, -VCBO 400 V and -IC 300 mA max (also connected to the SOT-89 tab per the package outline).
3 E passive Emitter of the PNP transistor; total power dissipation 625 mW max at Ta = 25 °C.

Key specifications

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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
DC Current Gain hFE 70 at -VCE = 10 V, -IC = 1 mA 1
DC Current Gain hFE 80 300 at -VCE = 10 V, -IC = 10 mA 1
DC Current Gain hFE 60 at -VCE = 10 V, -IC = 100 mA 1
Collector Base Cutoff Current -ICBO 0.1 µA at -VCB = 300 V 1
Collector Emitter Cutoff Current -ICES 1 µA at -VCE = 400 V 1
Emitter Base Cutoff Current -IEBO 0.1 µA at -VEB = 4 V 1
Collector Base Breakdown Voltage -V(BR)CBO 400 V at -IC = 100 µA 1
Collector Emitter Breakdown Voltage -V(BR)CEO 400 V at -IC = 1 mA 1
Emitter Base Breakdown Voltage -V(BR)EBO 6 V at -IE = 10 µA 1
Collector Emitter Saturation Voltage -VCE(sat) 0.2 V at -IC = 10 mA, -IB = 1 mA 1
Collector Emitter Saturation Voltage -VCE(sat) 0.5 V at -IC = 50 mA, -IB = 5 mA 1
Base Emitter Saturation Voltage -VBE(sat) 0.75 V at -IC = 10 mA, -IB = 1 mA 1
Collector Output Capacitance Cob 7 pF at -VCB = 20 V, f = 1 MHz 1
Collector Base Voltage -VCBO 400 V 1
Collector Emitter Voltage -VCEO 400 V 1
Emitter Base Voltage -VEBO 6 V 1
Collector Current -IC 300 mA 1
Total Power Dissipation Ptot 625 mW 1
Junction Temperature TJ 150 °C 1
Storage Temperature Range Tstg -55 150 °C 1

CAD (KiCad official)

  • Symbol: MPSA94U
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: mpsa94u-etched.step / mpsa94u-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mpsa94u.step / mpsa94u.glb are the bare package body.

Provenance

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

  • Datasheet: CBI datasheet (3 pp, sha256 cbf4fa653322ddde, retrieved 2026-10-18, 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