# CMD40P03B

**Cmos** · MOSFETs · TO-252

CMD40P03B 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 control input, with a maximum gate-source voltage of ±20 V. |
| 2 | D | passive | Drain, also the exposed tab, rated for -30 V drain-source voltage and -30 A continuous drain current at TC=25℃. |
| 3 | S | passive | Source terminal, with a continuous source current rating of -30 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Cmos |
| Package | TO-252 |
| Category | Triode/MOS Tube/Transistor |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `CMD40P03B`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `cmd40p03b-etched.step` / `cmd40p03b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cmd40p03b.step` / `cmd40p03b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Cmos datasheet](docs/cmd40p03b-datasheet.pdf) (4 pp, sha256 `6eb4eaafbcddb782`, retrieved 2026-11-02, 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/cmd40p03b-datasheet.pdf)