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Contents

README

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SM3401SRL

SPS · MOSFETs · SOT-23

SM3401SRL from SPS, in a SOT-23. 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 of the P-channel MOSFET (pin 1 per ordering pin assignment G S D); drive with VGS = -10V, -4.5V or -2.5V for the stated RDS(on) specs.
2 S passive Source of the P-channel MOSFET (pin 2 per ordering pin assignment G S D).
3 D passive Drain of the P-channel MOSFET (pin 3 per ordering pin assignment G S D); VDSS -30V, ID -4.4A.

Key specifications

Parameter Value
Manufacturer SPS
Package SOT-23
Category Transistors
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
Drain-Source On-Resistance RDS(on) 52 mΩ VGS = -10V 1
Drain-Source On-Resistance RDS(on) 65 mΩ VGS = -4.5V 1
Drain-Source On-Resistance RDS(on) 85 mΩ VGS = -2.5V 1

CAD (KiCad official)

  • Symbol: SM3401SRL
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: sm3401srl-etched.step / sm3401srl-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sm3401srl.step / sm3401srl.glb are the bare package body.

Provenance

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

  • Datasheet: SPS datasheet (6 pp, sha256 e3315b7bfeef8d00, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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