# MOT20N50A

**MOT** · MOSFETs · TO-220

MOT20N50A from MOT, 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 | Gate | input | Gate terminal of the N-channel MOSFET; the gate-source voltage is rated at ±30 V (absolute maximum). |
| 2 | Drain | passive | Drain terminal of the N-channel MOSFET; drain-source voltage is rated at 500 V (BVDSS) and continuous drain current at 20 A (TC = 25°C). |
| 3 | Source | passive | Source terminal of the N-channel MOSFET and reference for the gate drive; body-diode continuous current is rated at 20 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MOT |
| 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 | BVDSS | 500 |  |  | V | ID=250µA, VGS=0V | 2 |
| Gate Threshold Voltage | VGS(TH) | 2 |  | 4 | V | VDS=VGS, ID=250µA | 2 |
| Static Drain-Source On-State Resistance | RDS(ON) |  | 0.22 | 0.26 | Ω | VGS=10V, ID=10A | 2 |
| Gate-Source Leakage Current Forward | IGSS |  |  | 100 | nA | VGS=+30V, VDS=0V | 2 |
| Gate-Source Leakage Current Reverse | IGSS | -100 |  |  | nA | VGS=-30V, VDS=0V | 2 |
| Maximum Body-Diode Continuous Current | IS |  |  | 20 | A |  | 2 |
| Maximum Body-Diode Pulsed Current | ISM |  |  | 80 | A |  | 2 |
| Drain-Source Diode Forward Voltage | VSD |  |  | 1.4 | V | IS=20A, VGS=0V | 2 |
| Drain-Source Voltage | VDSS |  |  | 500 | V | TC=25°C | 1 |
| Gate-Source Voltage | VGSS | -30 |  | 30 | V | TC=25°C | 1 |
| Drain Current Continuous | ID |  |  | 20 | A | TC=25°C | 1 |
| Pulsed Drain Current | IDM |  |  | 80 | A | Pulse width limited by maximum junction temperature (Note 2) | 1 |
| Avalanche Energy, single pulse | EAS |  |  | 1000 | mJ | Single Pulsed, L=10mH, IAS=14A, VDD=50V, RG=25Ω, Starting TJ=25°C (Note 3) | 1 |
| Peak Diode Recovery dv/dt | dv/dt |  |  | 2.2 | V/ns | ISD ≤ 20A, di/dt ≤ 200A/µs, VDD ≤ BVDSS, Starting TJ=25°C (Note 4) | 1 |
| Power Dissipation TO-220 | PD |  |  | 200 | W | TO-220 package | 1 |
| Junction Temperature | TJ |  |  | 150 | °C |  | 1 |
| Storage Temperature | TSTG | -55 |  | 150 | °C |  | 1 |
| Junction to Ambient TO-220 | θJA |  |  | 62.5 | °C/W | TO-220/TO-220F | 1 |
| Junction to Case TO-220 | θJC |  |  | 0.625 | °C/W | TO-220 | 1 |

## CAD (KiCad official)

- Symbol: `MOT20N50A`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files: `mot20n50a-etched.step` / `mot20n50a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mot20n50a.step` / `mot20n50a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MOT datasheet](docs/mot20n50a-datasheet.pdf) (8 pp, sha256 `637c9e1a0ae7c4e3`, retrieved 2026-10-28, tier: lcsc)
- **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/mot20n50a-datasheet.pdf)