# SI2302W

**TWGMC** · MOSFETs · SOT-323

SI2302W from TWGMC, in a SOT-323. 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 | Gate | input | Gate terminal of the MOSFET, with gate-source voltage limited to VGS = ±8 V. |
| 2 | Source | passive | Source terminal of the MOSFET, with continuous source-drain diode conduction current IS rated at 0.6 A. |
| 3 | Drain | passive | Drain terminal of the MOSFET, with drain-source voltage VDS rated at 20 V and continuous drain current ID rated at 2.1 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TWGMC |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `SI2302W`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `si2302w-etched.step` / `si2302w-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `si2302w.step` / `si2302w.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TWGMC datasheet](docs/si2302w-datasheet.pdf) (4 pp, sha256 `5b0eb9791dd5bdb3`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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](docs/si2302w-datasheet.pdf)