# CMD25N20A

**Cmos** · MOSFETs · TO-252

CMD25N20A from Cmos, in a TO-252. 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 of the MOSFET; the gate-source voltage must stay within ±30 V (VGS rating). |
| 2 | D | passive | Drain of the 200 V N-channel MOSFET; continuous drain current is rated at 20 A at TC=25℃ (11.3 A at TC=100℃). |
| 3 | S | passive | Source of the MOSFET; continuous source current is rated at 20 A and pulsed source current at 80 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Cmos |
| Package | TO-252 |
| Category | Triode/MOS Tube/Transistor |
| 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 | 200 |  |  | V | VGS=0V, ID=250uA | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  |  | 0.17 | Ω | VGS=10V, ID=9A | 2 |
| Gate Threshold Voltage | VGS(th) | 2 |  | 4 | V | VGS=VDS, ID=250uA | 2 |
| Drain-Source Leakage Current | IDSS |  |  | 1 | uA | VDS=200V, VGS=0V | 2 |
| Gate-Source Leakage Current | IGSS |  |  | 100 | nA | VGS=±30V, VDS=0V | 2 |
| Continuous Source Current | IS |  |  | 20 | A |  | 2 |
| Pulsed Source Current | ISM |  |  | 80 | A | VG=VD=0V, Force Current | 2 |
| Diode Forward Voltage | VSD |  |  | 1.4 | V | VGS=0V, IS=9A, TJ=25℃ | 2 |
| Drain-Source Voltage | VDS |  |  | 200 | V |  | 1 |
| Gate-Source Voltage | VGS | -30 |  | 30 | V |  | 1 |
| Continuous Drain Current at TC=25℃ | ID@TC=25℃ |  |  | 20 | A |  | 1 |
| Continuous Drain Current at TC=100℃ | ID@TC=100℃ |  |  | 11.3 | A |  | 1 |
| Pulsed Drain Current | IDM |  |  | 80 | A |  | 1 |
| Single Pulse Avalanche Energy | EAS |  |  | 688 | mJ |  | 1 |
| Total Power Dissipation at TC=25℃ | PD@TC=25℃ |  |  | 70 | W |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Operating Junction Temperature Range | TJ |  |  | 150 | ℃ |  | 1 |
| Thermal Resistance Junction-ambient | RθJA |  |  | 50 | ℃/W |  | 1 |
| Thermal Resistance Junction-Case | RθJC |  |  | 1.79 | ℃/W |  | 1 |

## CAD (KiCad official)

- Symbol: `CMD25N20A`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `cmd25n20a-etched.step` / `cmd25n20a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cmd25n20a.step` / `cmd25n20a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Cmos datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758071936855351296) (6 pp, sha256 `853e1a63878d4ab8`, retrieved 2026-10-09, 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/cmd25n20a-datasheet.pdf)