# CMD85P04

**Cmos(广东场效应半导体)** · MOSFETs · TO-252

CMD85P04 from Cmos(广东场效应半导体), 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; gate-source voltage limited to ±20 V, with threshold of -1.0 V to -2.5 V. |
| 2 | D | passive | Drain (also the tab); drain-source voltage -40 V, continuous drain current -85 A at TC=25℃, pulsed -340 A. |
| 3 | S | passive | Source; continuous source (body diode) current -85 A and pulsed -340 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Cmos(广东场效应半导体) |
| Package | TO-252 |
| 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 Voltage | VDS |  |  | -40 | V |  | 1 |
| Gate-Source Voltage | VGS | -20 |  | 20 | V |  | 1 |
| Pulsed Drain Current | IDM |  |  | -340 | A |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 150 | ℃ |  | 1 |
| Total Power Dissipation | PD |  |  | 88 | W | TC=25℃ | 1 |
| Single Pulse Avalanche Energy | EAS |  |  | 528 | mJ | Note 1: VDD=-30V, VGS=-10V, L=1mH, IAS=-32.5A | 1 |
| Continuous Drain Current | ID |  |  | -85 | A | TC=25℃ | 1 |
| Continuous Drain Current | ID |  |  | -59 | A | TC=100℃ | 1 |
| Thermal Resistance Junction-ambient | RθJA |  |  | 62 | ℃/W | minimal footprint | 1 |
| Thermal Resistance Junction-case | RθJC |  |  | 1.42 | ℃/W |  | 1 |
| Drain-Source Breakdown Voltage | BVDSS | -40 |  |  | V | VGS=0V, ID=-250uA | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 6.4 | 7.3 | mΩ | VGS=-10V, ID=-20A | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 7.5 | 8.5 | mΩ | VGS=-4.5V, ID=-15A | 2 |
| Gate Threshold Voltage | VGS(th) | -1 |  | -2.5 | V | VGS=VDS, ID=-250uA | 2 |
| Drain-Source Leakage Current | IDSS |  |  | -1 | uA | VDS=-32V, VGS=0V, TJ=25℃ | 2 |
| Gate-Source Leakage Current | IGSS | -100 |  | 100 | nA | VGS=±20V, VDS=0V | 2 |
| Continuous Source Current | IS |  |  | -85 | A |  | 2 |
| Pulsed Source Current | ISM |  |  | -340 | A | VG=VD=0V, Force Current | 2 |
| Diode Forward Voltage | VSD |  | -0.81 | -1.3 | V | VGS=0V, IF=-15A | 2 |

## CAD (KiCad official)

- Symbol: `CMD85P04`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `cmd85p04-etched.step` / `cmd85p04-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cmd85p04.step` / `cmd85p04.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Cmos(广东场效应半导体) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590916646402420736) (3 pp, sha256 `9fadef0395f61b9d`, retrieved 2026-10-18, 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/cmd85p04-datasheet.pdf)