# 8850

**GOFORD** · MOSFETs · TO-220

8850 from GOFORD, in a TO-220. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | G | input | Gate. Insulated MOSFET control terminal; VGS(TH) = 2-4 V (typ 3 V), VGS absolute max ±20 V. Drive to 10 V for full enhancement (RDS(ON) typ 14 mΩ). Total gate charge Qg ≈ 34 nC at VDS = 40 V, VGS = 10 V, ID = 20 A. |
| 2 | D | passive | Drain. Power terminal, also electrically connected to the TO-220 metal mounting tab for heat sinking. BVDSS ≥ 80 V, ID = 50 A continuous (35.4 A at TC = 100 °C), IDM = 85 A pulsed. Body diode: VSD ≤ 1.2 V at IS = 20 A, trr typ 21 ns. |
| 3 | S | passive | Source. Power return terminal and reference for VGS. Anode of the intrinsic body diode (drain is cathode). Handles up to ID = 50 A continuous. |
| TAB | D | passive | Metal mounting tab, electrically connected to the Drain. Provides thermal path to heatsink; RθJC = 1.36 °C/W, PD = 110 W at TC = 25 °C with derating 0.73 W/°C above 25 °C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | GOFORD |
| Package | TO-220 |
| Category | Transistors/Thyristors |
| Pins | 4 |

## CAD (KiCad official)

- Symbol: `8850`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files: `8850-etched.step` / `8850-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `8850.step` / `8850.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [GOFORD datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590919057346809856) (None pp, sha256 `7360c2eb9bf4e5bc`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/8850-datasheet.pdf)