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SI4431CDY-TP

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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SI4431CDY-TP

TECH PUBLIC · MOSFETs · SOP-8

SI4431CDY-TP 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; continuous drain current is -8 A and VDS is -30 V.
2 S passive Source of the P-channel MOSFET, connected in common with the other source pins.
3 S passive Source of the P-channel MOSFET, connected in common with the other source pins.
4 G input Gate of the P-channel MOSFET; gate-source voltage limit is ±20 V with a threshold of -1.0 V min to -2.5 V max.
5 D passive Drain of the P-channel MOSFET; drain-source voltage is -30 V and pulsed drain current is -40 A.
6 D passive Drain of the P-channel MOSFET, connected in common with the other drain pins.
7 D passive Drain of the P-channel MOSFET, connected in common with the other drain pins.
8 D passive Drain of the P-channel MOSFET, connected in common with the other drain pins.

Key specifications

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

CAD (KiCad official)

  • Symbol: SI4431CDY-TP
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: si4431cdy-tp-etched.step / si4431cdy-tp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); si4431cdy-tp.step / si4431cdy-tp.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (4 pp, sha256 fcb62095c38023dc, 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