# STGWA40M120DF3

**STMicroelectronics** · IGBTs · TO-247

STGWA40M120DF3 from STMicroelectronics, in a TO-247. 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 | G | input | Gate of the IGBT, with a maximum gate-emitter voltage of ±20 V. |
| 2 | C | passive | Collector of the IGBT (also connected to the TAB), with a collector-emitter voltage of 1200 V and 40 A continuous collector current at TC = 100 °C. |
| 3 | E | passive | Emitter of the IGBT, which is the anode side of the antiparallel diode's return path with 40 A continuous forward current at TC = 100 °C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-247 |
| Category | Triode/MOS Tube/Transistor |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `STGWA40M120DF3`
- Footprint: `Package_TO_SOT_THT:TO-247-3_Vertical`
- 3D model: TO-247 (KiCad packages3D, STEP)
- 3D model files: `stgwa40m120df3-etched.step` / `stgwa40m120df3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stgwa40m120df3.step` / `stgwa40m120df3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/stgwa40m120df3.pdf) (18 pp, sha256 `bbceefd63675820f`, retrieved 2026-10-27, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+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](docs/stgwa40m120df3-datasheet.pdf)