# STF20N65M5

**STMicroelectronics** · MOSFETs · TO-220-3

STF20N65M5 from STMicroelectronics, in a TO-220-3. 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 control terminal with maximum gate-source voltage ±25 V and gate threshold voltage 3-5 V. |
| 2 | D | output | Drain terminal with continuous current 18 A at 25°C (11.3 A at 100°C), pulsed current 36 A, and drain-source breakdown voltage 650 V. |
| 3 | S | power_in | Source return terminal with static drain-source on-resistance 160-190 mΩ at gate-source voltage 10 V and drain current 9 A. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `STF20N65M5`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220-3 (KiCad packages3D, STEP)
- 3D model files: `stf20n65m5-etched.step` / `stf20n65m5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stf20n65m5.step` / `stf20n65m5.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/stf20n65m5.pdf) (13 pp, sha256 `4009aff49e69a9a9`, retrieved 2026-10-06, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/stf20n65m5-datasheet.pdf)