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Contents

README

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STP12NK30Z

STMicroelectronics · MOSFETs · TO-220-3

STP12NK30Z from STMicroelectronics, in a TO-220-3. 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 G input Gate; VGS rated ±30 V max, with built-in back-to-back Zener diodes to the source for ESD protection (3000 V HBM) and threshold of 3 to 4.5 V at ID = 50 µA.
2 D passive Drain; VDS rated 300 V max, continuous current 9 A at TC = 25°C (36 A pulsed), also connected to the mounting tab.
3 S passive Source; main current return terminal of the MOSFET, with a body diode to the drain rated 9 A continuous (ISD).

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TO-220-3
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: STP12NK30Z
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220-3 (KiCad packages3D, STEP)
  • 3D model files: stp12nk30z-etched.step / stp12nk30z-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stp12nk30z.step / stp12nk30z.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (8 pp, sha256 e7d2cbc27dfea4ca, retrieved 2026-10-01, 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