# AOD424-MS

**MSKSEMI** · MOSFETs · TO-252

AOD424-MS from MSKSEMI, 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 terminal; gate-source voltage VGS is rated ±12 V (absolute maximum), and RDS(ON) is specified at VGS = 4.5 V and 2.5 V. |
| 2 | D | passive | Drain terminal; drain-source voltage VDS is rated 20 V and continuous drain current ID is rated 60 A at TC = 25℃. |
| 3 | S | passive | Source terminal; reference for VGS and VDS, and the body-diode forward current IS is rated 60 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| 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 |  |  | 20 | V |  | 2 |
| Gate-Source Voltage | VGS | -12 |  | 12 | V |  | 2 |
| Drain Current-Continuous | ID |  |  | 60 | A |  | 2 |
| Drain Current-Continuous (TC=100℃) | ID (100℃) |  |  | 42 | A | TC=100℃ | 2 |
| Pulsed Drain Current | IDM |  |  | 210 | A |  | 2 |
| Maximum Power Dissipation | PD |  |  | 60 | W |  | 2 |
| Single pulse avalanche energy | EAS |  |  | 200 | mJ | Note 5: Tj=25℃,VDD=10V,VG=10V,L=0.5mH,Rg=25Ω | 2 |
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 |  | 150 | ℃ |  | 2 |
| Thermal Resistance, Junction-to-Case (Note 2) | RθJC |  |  | 2.1 | ℃/W | Note 2: Surface Mounted on FR4 Board, t ≤ 10 sec | 2 |
| Drain-Source Breakdown Voltage | BVDSS | 20 |  |  | V | VGS=0V ID=250μA | 3 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | μA | VDS=20V,VGS=0V | 3 |
| Gate-Body Leakage Current | IGSS | -100 |  | 100 | nA | VGS=±12V,VDS=0V | 3 |
| Gate Threshold Voltage | VGS(th) | 0.5 | 0.75 | 1 | V | VDS=VGS,ID=250μA | 3 |
| Drain-Source On-State Resistance | RDS(ON) |  | 5.5 | 7 | mΩ | VGS=4.5V, ID=20 A | 3 |
| Drain-Source On-State Resistance | RDS(ON) |  | 6.2 | 9 | mΩ | VGS=2.5V, ID=15A | 3 |
| Forward Transconductance | gFS | 15 |  |  | S | VDS=10V,ID=20A | 3 |
| Diode Forward Current (Note 2) | IS |  |  | 60 | A |  | 3 |

## CAD (KiCad official)

- Symbol: `AOD424-MS`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `aod424-ms-etched.step` / `aod424-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `aod424-ms.step` / `aod424-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/8555434929638780928) (7 pp, sha256 `715ede8d76616d38`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/aod424-ms-datasheet.pdf)