# AO7400

**Alpha Omega Semicon** · MOSFETs · SC-70-3

AO7400 from Alpha Omega Semicon, in a SC-70-3. 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 is limited to ±12V maximum, with gate threshold of 0.5V min to 1.5V max at ID=250µA and RDS(ON) specified down to VGS=2.5V. |
| 2 | S | passive | Source terminal of the N-channel MOSFET, with maximum body-diode continuous current of 1.5A. |
| 3 | D | passive | Drain; drain-source voltage is rated 30V maximum, with continuous drain current of 1.7A at TA=25°C and 15A pulsed. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Alpha Omega Semicon |
| Package | SC-70-3 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `AO7400`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SC-70-3 (KiCad packages3D, STEP)
- 3D model files: `ao7400-etched.step` / `ao7400-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ao7400.step` / `ao7400.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Alpha Omega Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8561886098704908288) (5 pp, sha256 `21126c3ccc70b4a9`, 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/ao7400-datasheet.pdf)