component
2N2222A
Public Made by Adomby adom
ST Semtech Bipolar (BJT), TO-92. 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
markdown2N2222A
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2n2222a.step/2n2222a.glbare 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, 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).