component

SI4401BDY

Public Made by Adom

by adom

TECH PUBLIC MOSFETs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 16d ago
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README.md Publish 0.1.0 · Ray 16d ago
si4401bdy-etched.glb Publish 0.1.0 · Ray 16d ago
si4401bdy-etched.step si4401bdy: factory component page (tier=lcsc) · Ray 16d ago
si4401bdy-hero.glb si4401bdy: hero GLB from the etched model (keeps the MPN mark) · Ray 16d ago
si4401bdy-hero.overlay.json Publish 0.1.0 · Ray 16d ago
si4401bdy.glb Publish 0.1.0 · Ray 16d ago
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SI4401BDY

TECH PUBLIC · MOSFETs · SOP-8

SI4401BDY from TECH PUBLIC, in a SOP-8. 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 S passive Source of the P-channel MOSFET, connected internally with pins 2 and 3.
2 S passive Source of the P-channel MOSFET, connected internally with pins 1 and 3.
3 S passive Source of the P-channel MOSFET, connected internally with pins 1 and 2.
4 G input Gate of the P-channel MOSFET; VGS rated ±20 V, threshold -1.0 V to -2.5 V.
5 D passive Drain of the P-channel MOSFET (VDS -40 V, ID -12 A), connected internally with pins 6, 7 and 8.
6 D passive Drain of the P-channel MOSFET (VDS -40 V, ID -12 A), connected internally with pins 5, 7 and 8.
7 D passive Drain of the P-channel MOSFET (VDS -40 V, ID -12 A), connected internally with pins 5, 6 and 8.
8 D passive Drain of the P-channel MOSFET (VDS -40 V, ID -12 A), connected internally with pins 5, 6 and 7.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOP-8
Category Transistors/Thyristors
Pins 8

CAD (KiCad official)

  • Symbol: SI4401BDY
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: si4401bdy-etched.step / si4401bdy-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); si4401bdy.step / si4401bdy.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (5 pp, sha256 ddf45245f556fbdf, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (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