# AO4421-HXY

**HXY MOSFET** · MOSFETs · SOP-8

AO4421-HXY from HXY MOSFET, in a SOP-8. 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 P-channel MOSFET, tied with pins 2 and 3; VDS rated -60V. |
| 2 | S | passive | Source of the P-channel MOSFET, tied with pins 1 and 3; VDS rated -60V. |
| 3 | S | passive | Source of the P-channel MOSFET, tied with pins 1 and 2; VDS rated -60V. |
| 4 | G | input | Gate of the P-channel MOSFET; VGS max ±20V, threshold -1V to -3V at ID=-250μA. |
| 5 | D | passive | Drain of the P-channel MOSFET, tied with pins 6-8; ID -6A continuous at TA=25℃, -40A pulsed. |
| 6 | D | passive | Drain of the P-channel MOSFET, tied with pins 5, 7 and 8; ID -6A continuous at TA=25℃, -40A pulsed. |
| 7 | D | passive | Drain of the P-channel MOSFET, tied with pins 5, 6 and 8; ID -6A continuous at TA=25℃, -40A pulsed. |
| 8 | D | passive | Drain of the P-channel MOSFET, tied with pins 5-7; ID -6A continuous at TA=25℃, -40A pulsed. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOP-8 |
| Category | Transistors/Thyristors |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `AO4421-HXY`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `ao4421-hxy-etched.step` / `ao4421-hxy-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ao4421-hxy.step` / `ao4421-hxy.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HXY MOSFET datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757975888070238208) (6 pp, sha256 `c8892684ea87f984`, retrieved 2026-10-09, 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/ao4421-hxy-datasheet.pdf)