component
SI4455DY
Public Made by Adomby adom
TECH PUBLIC MOSFETs, SOIC-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
markdownSI4455DY
TECH PUBLIC · MOSFETs · SOIC-8
SI4455DY from TECH PUBLIC, in a SOIC-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 (pin 1 on the SOP-8 top view). |
| 2 | S | passive | Source of the P-channel MOSFET (pin 2 on the SOP-8 top view). |
| 3 | S | passive | Source of the P-channel MOSFET (pin 3 on the SOP-8 top view). |
| 4 | G | input | Gate of the P-channel MOSFET; VGS rated ±20 V absolute maximum, with ESD-protected gate. |
| 5 | D | passive | Drain of the P-channel MOSFET; VDS rated -150 V absolute maximum. |
| 6 | D | passive | Drain of the P-channel MOSFET; VDS rated -150 V absolute maximum. |
| 7 | D | passive | Drain of the P-channel MOSFET; VDS rated -150 V absolute maximum. |
| 8 | D | passive | Drain of the P-channel MOSFET; VDS rated -150 V absolute maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOIC-8 |
| Category | Transistors/Thyristors |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
SI4455DY - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
si4455dy-etched.step/si4455dy-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);si4455dy.step/si4455dy.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECH PUBLIC datasheet (6 pp, sha256
6707f143d7e661fa, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(vision), consensusclaude-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).