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Contents

README

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MPSA92-TA

Changjing · Bipolar (BJT) · TO-92

MPSA92-TA from Changjing, in a TO-92. 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 EMITTER passive Emitter terminal of the PNP transistor; the datasheet rates the emitter-base voltage VEBO at -5 V and the emitter-base breakdown voltage V(BR)EBO at -5 V (IE = -100 µA).
2 BASE passive Base terminal; the base-emitter saturation voltage VBE(sat) is -0.9 V at IC = -20 mA and IB = -2 mA.
3 COLLECTOR passive Collector terminal; the datasheet rates VCBO at -310 V, VCEO at -305 V, continuous collector current IC at -200 mA and pulsed ICM at -500 mA.

Key specifications

Parameter Value
Manufacturer Changjing
Package TO-92
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
Collector-emitter voltage VCEO -305 V 1
Collector-base voltage VCBO -310 V 1
Emitter-base voltage VEBO -5 V 1
Collector current, continuous IC -200 mA 1
Collector current, pulsed ICM -500 mA 1
Collector power dissipation PC 625 mW 1
Operation junction and storage temperature range TJ,Tstg -55 150 ℃ 1
Thermal resistance, junction to ambient RӨJA 200 ℃ /mW 1
Thermal resistance, junction to case RӨJC 83.3 ℃ /mW 1
Collector-base breakdown voltage V(BR)CBO -310 V IC=-100uA, IE=0 2
Collector-emitter breakdown voltage V(BR)CEO -305 V IC=-1mA, IB=0 2
Emitter-base breakdown voltage V(BR)EBO -5 V IE=-100μA, IC=0 2
Collector cut-off current ICBO -0.25 μA VCB= -200 V IE=0 2
Emitter cut-off current IEBO -0.1 μA VEB= -5 V, IC=0 2
DC current gain hFE(1) 60 VCE= -10 V, IC=- 1 mA 2
DC current gain hFE(2) 80 250 VCE= -10V, IC = -10 mA 2
Collector-emitter saturation voltage VCE(sat) -0.2 V IC= -20 mA, IB= -2 mA 2
Base-emitter saturation voltage VBE(sat) -0.9 V IC= -20 mA, IB= -2 mA 2
Transition frequency fT 50 MHz VCE= -20 V, IC= -10 mA, f = 30MHz 2

CAD (KiCad official)

  • Symbol: MPSA92-TA
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92 (KiCad packages3D, STEP)
  • 3D model files: mpsa92-ta-etched.step / mpsa92-ta-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mpsa92-ta.step / mpsa92-ta.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (5 pp, sha256 d579b6b25651ec95, retrieved 2026-10-19, 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