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2N2222A

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ST Semtech Bipolar (BJT), TO-92. 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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2N2222A

ST Semtech · Bipolar (BJT) · TO-92

2N2222A from ST Semtech, 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 NPN transistor, with the emitter-base voltage rated VEBO 5 V for 2N2222 and 6 V for 2N2222A at Ta = 25 °C.
2 Base passive Base terminal of the NPN transistor, with base-emitter saturation voltage VBE(sat) specified at IC = 150 mA, IB = 15 mA and at IC = 500 mA, IB = 50 mA.
3 Collector passive Collector terminal of the NPN transistor, with collector current rated to 600 mA, collector-emitter voltage VCEO 30 V (2N2222) / 40 V (2N2222A), and total power dissipation Ptot 625 mW.

Key specifications

Parameter Value
Manufacturer ST Semtech
Package TO-92
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: 2N2222A
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92 (KiCad packages3D, STEP)
  • 3D model files: 2n2222a-etched.step / 2n2222a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2n2222a.step / 2n2222a.glb are the bare package body.

Provenance

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

  • Datasheet: ST Semtech datasheet (3 pp, sha256 b51b38d1b69e1b15, 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