# TSP50N20M

**Truesemi** · MOSFETs · TO-220

TSP50N20M from Truesemi, 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; controls the channel, with VGS rated ±20 V maximum and threshold VGS(th) of 2 V to 4 V at ID = 250 µA. |
| 2 | D | passive | Drain; drain-source voltage rated 200 V with 50 A continuous drain current and 200 A pulsed. |
| 3 | S | passive | Source; connects to the body diode anode, with continuous source current of 50 A. |

## Key specifications

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

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Drain-Source Breakdown Voltage | V(BR)DSS | 200 |  |  | V | VGS = 0V, ID = 250µA | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | μA | VDS = 200V, VGS = 0V, TJ = 25ºC | 2 |
| Gate-Source Leakage | IGSS | -100 |  | 100 | nA | VGS = ±20V, VDS = 0V | 2 |
| Gate-Source Threshold Voltage | VGS(th) | 2 |  | 4 | V | VDS = VGS, ID = 250µA | 2 |
| Drain-Source On-Resistance | RDS(on) |  | 0.041 | 0.046 | Ω | VGS = 10V, ID = 25A | 2 |
| Continuous Source Current | ISD |  |  | 50 | A | Integral PN-diode in MOSFET | 2 |
| Pulsed Source Current | ISM |  |  | 200 | A |  | 2 |
| Body Forward Voltage | VSD |  |  | 1.5 | V | IS = 20A, VGS = 0V | 2 |
| Drain-Source Voltage | VDSS |  |  | 200 | V | TC = 25ºC | 1 |
| Continuous Drain Current | ID |  |  | 50 | A | TC = 25ºC | 1 |
| Pulsed Drain Current | IDM |  |  | 200 | A |  | 1 |
| Gate-Source Voltage | VGSS | -20 |  | 20 | V |  | 1 |
| Power Dissipation | PD |  |  | 250 | W | TC = 25ºC | 1 |
| Operating Junction and Storage Temperature Range | TJ, Tstg | -55 |  | 150 | ºC |  | 1 |
| Derating Factor above 25°C |  |  |  | 2.4 | W/ºC | above 25°C | 1 |
| Thermal Resistance, Junction-to-Case | RthJC |  | 0.5 |  | ºC/W |  | 1 |
| Thermal Resistance, Junction-to-Ambient | RthJA |  | 62.5 |  | ºC/W |  | 1 |

## CAD (KiCad official)

- Symbol: `TSP50N20M`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files: `tsp50n20m-etched.step` / `tsp50n20m-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tsp50n20m.step` / `tsp50n20m.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Truesemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603034989348855808) (9 pp, sha256 `ace6ad9bc9f7858e`, retrieved 2026-10-21, 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/tsp50n20m-datasheet.pdf)