# STP17NF25

**STMicroelectronics** · MOSFETs · TO-220

STP17NF25 from STMicroelectronics, in a TO-220. 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 N-channel STripFET II MOSFET; gate-source voltage VGS is rated ±20 V. |
| 2 | D | passive | Drain, also connected to the metal tab (D(2, TAB) in the datasheet); rated 250 V VDS and 17 A continuous drain current at TC = 25 °C. |
| 3 | S | passive | Source of the MOSFET; the source-drain diode is rated 17 A continuous and 68 A pulsed. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-220 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `STP17NF25`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files: `stp17nf25-etched.step` / `stp17nf25-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stp17nf25.step` / `stp17nf25.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/stp17nf25.pdf) (12 pp, sha256 `f7089c48c90b18a8`, retrieved 2026-10-07, tier: manufacturer)
- **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/stp17nf25-datasheet.pdf)