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Contents

README

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STN4NF03L

STMicroelectronics · MOSFETs · SOT-223

STN4NF03L from STMicroelectronics, in a SOT-223. 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 control terminal of the N-channel power MOSFET; gate-source voltage rated ±16 V, gate threshold voltage typically 1 V (VDS=VGS, ID=250 µA).
2 D passive Drain terminal of the N-channel power MOSFET, rated VDSS=30 V and continuous ID=6.5 A at TC=25°C; this node is also brought out to the package tab (same net, marked '2' on the tab in the outline drawing).
3 S passive Source terminal of the N-channel power MOSFET, also the anode of the intrinsic body diode used for source-drain conduction (ISD up to 6.5 A continuous).

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOT-223
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: STN4NF03L
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)
  • 3D model files: stn4nf03l-etched.step / stn4nf03l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stn4nf03l.step / stn4nf03l.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (12 pp, sha256 1f1a0cf2f0ecaa49, retrieved 2026-09-29, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF