# STW11NK90Z

**STMicroelectronics** · MOSFETs · TO-247

STW11NK90Z 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 terminal with built-in back-to-back Zener protection, rated for a maximum gate-source voltage of ±30 V and a gate threshold of 3 to 4.5 V. |
| 2 | D | passive | Drain terminal rated for a drain-source voltage of 900 V and a continuous drain current of 9.2 A at TC = 25°C. |
| 3 | S | passive | Source terminal, the return for the 9.2 A continuous drain current and the reference for the ±30 V gate-source rating. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-247 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `STW11NK90Z`
- Footprint: `Package_TO_SOT_THT:TO-247-3_Vertical`
- 3D model: TO-247 (KiCad packages3D, STEP)
- 3D model files: `stw11nk90z-etched.step` / `stw11nk90z-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stw11nk90z.step` / `stw11nk90z.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/stw11nk90z.pdf) (12 pp, sha256 `729e885e67fdd081`, 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/stw11nk90z-datasheet.pdf)