component
SI4401FDY-T1-GE3
Public Made by Adomby adom
Vishay Intertech MOSFETs, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSI4401FDY-T1-GE3
Vishay Intertech · MOSFETs · SO-8
SI4401FDY-T1-GE3 from Vishay Intertech, in a SO-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Source | passive | Source terminal of the P-channel MOSFET; one of four source pins internally connected for current distribution. |
| 2 | Source | passive | Source terminal of the P-channel MOSFET; one of four source pins internally connected for current distribution. |
| 3 | Source | passive | Source terminal of the P-channel MOSFET; one of four source pins internally connected for current distribution. |
| 4 | Gate | input | Gate terminal; control input accepting gate-source voltage from -20 V to +20 V absolute maximum, with threshold voltage VGS(th) between -1 V and -2.3 V. |
| 5 | Drain | passive | Drain terminal of the P-channel MOSFET; one of three drain pins internally connected for current distribution, rated for maximum -40 V drain-source voltage. |
| 6 | Drain | passive | Drain terminal of the P-channel MOSFET; one of three drain pins internally connected for current distribution. |
| 7 | Drain | passive | Drain terminal of the P-channel MOSFET; one of three drain pins internally connected for current distribution. |
| 8 | Source | passive | Source terminal of the P-channel MOSFET; one of four source pins internally connected for current distribution. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| Package | SO-8 |
| Category | Transistors/Thyristors |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
SI4401FDY-T1-GE3 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
si4401fdy-t1-ge3-etched.step/si4401fdy-t1-ge3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);si4401fdy-t1-ge3.step/si4401fdy-t1-ge3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (9 pp, sha256
8fd2377fe076c89b, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).