# CMSA8972

**Cmos** · MOSFETs · DFN-8(5x6)

CMSA8972 from Cmos, in a DFN-8(5x6). 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 | S | passive | Source of the N-channel MOSFET (Pin 1 marker is at this pin); the device is rated for 100 A continuous drain current at TC=25°C. |
| 2 | S | passive | Source of the N-channel MOSFET, tied in parallel with the other source pins; the device is rated for 100 A continuous drain current at TC=25°C. |
| 3 | S | passive | Source of the N-channel MOSFET, tied in parallel with the other source pins; the device is rated for 100 A continuous drain current at TC=25°C. |
| 4 | G | input | Gate of the N-channel MOSFET with a maximum gate-source voltage of ±8 V and RDS(ON) below 2.5 mΩ at VGS=10V. |
| 5 | D | passive | Drain of the N-channel MOSFET with a maximum drain-source voltage of 20 V. |
| 6 | D | passive | Drain of the N-channel MOSFET with a maximum drain-source voltage of 20 V. |
| 7 | D | passive | Drain of the N-channel MOSFET with a maximum drain-source voltage of 20 V. |
| 8 | D | passive | Drain of the N-channel MOSFET with a maximum drain-source voltage of 20 V and a pulsed drain current rating of 400 A. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Cmos |
| Package | DFN-8(5x6) |
| Category | Triode/MOS Tube/Transistor |
| Pins | 9 |

## CAD (KiCad official)

- Symbol: `CMSA8972`
- Footprint: `Package_DFN_QFN:DFN-S-8-1EP_6x5mm_P1.27mm`
- 3D model: DFN-8(5x6) (KiCad packages3D, STEP)
- 3D model files: `cmsa8972-etched.step` / `cmsa8972-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cmsa8972.step` / `cmsa8972.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Cmos datasheet](docs/cmsa8972-datasheet.pdf) (2 pp, sha256 `0eb97ec493c54887`, retrieved 2026-10-27, 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/cmsa8972-datasheet.pdf)