# CMF20N50

**Cmos** · MOSFETs · TO-220F

CMF20N50 from Cmos, in a TO-220F. 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; the gate-source voltage is rated at ±30 V maximum, with a threshold of 2 V to 4 V at ID=250 uA. |
| 2 | D | passive | Drain; the drain-source voltage is rated at 500 V, and the continuous drain current for the TO-220F (CMF20N50) is 20 A at TC=25°C and 12 A at TC=100°C. |
| 3 | S | passive | Source; the continuous source (body diode) current is 20 A maximum and the pulsed source current is 60 A maximum. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Cmos |
| Package | TO-220F |
| Category | Triode/MOS Tube/Transistor |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `CMF20N50`
- Footprint: `Package_TO_SOT_THT:TO-220F-3_Vertical`
- 3D model: TO-220F (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [Cmos datasheet](docs/cmf20n50-datasheet.pdf) (4 pp, sha256 `33f6e3da91afb869`, retrieved 2026-10-27, tier: lcsc)
- **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/cmf20n50-datasheet.pdf)