# AONR21321-MS

**MSKSEMI** · MOSFETs · DFN5x6-8L

AONR21321-MS from MSKSEMI, in a DFN5x6-8L. 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, pin 1 end of the source/gate side of the DFN5X6-8L package. |
| 2 | S | passive | Source of the P-channel MOSFET; connect in parallel with the other source pins. |
| 3 | S | passive | Source of the P-channel MOSFET; connect in parallel with the other source pins. |
| 4 | G | input | Gate of the P-channel MOSFET, rated for VGS of ±20V maximum with RDS(ON) specified at VGS=-4.5V and -10V. |
| 5 | D | passive | Drain of the P-channel MOSFET, rated for VDS of -30V and continuous ID of -50A (TC=25℃). |
| 6 | D | passive | Drain of the P-channel MOSFET; connect in parallel with the other drain pins. |
| 7 | D | passive | Drain of the P-channel MOSFET; connect in parallel with the other drain pins. |
| 8 | D | passive | Drain of the P-channel MOSFET; connect in parallel with the other drain pins. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | DFN5x6-8L |
| Category | Transistors/Thyristors |
| Pins | 9 |

## CAD (KiCad official)

- Symbol: `AONR21321-MS`
- Footprint: `Package_DFN_QFN:DFN-S-8-1EP_6x5mm_P1.27mm`
- 3D model: DFN5x6-8L (KiCad packages3D, STEP)
- 3D model files: `aonr21321-ms-etched.step` / `aonr21321-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `aonr21321-ms.step` / `aonr21321-ms.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MSKSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602919506889363456) (8 pp, sha256 `a146768751caa8b5`, 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/aonr21321-ms-datasheet.pdf)