# AO3400NSA

**DOWO** · MOSFETs · SOT-23

AO3400NSA from DOWO, in a SOT-23. 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 | Gate | input | Gate terminal of the N-channel MOSFET; the gate-source voltage is rated at ±12 V (VGS). |
| 2 | Source | passive | Source terminal of the N-channel MOSFET; the diode forward current is rated at 5.8 A (IS) with a maximum diode forward voltage of 1.2 V at IS = 5.8 A. |
| 3 | Drain | passive | Drain terminal of the N-channel MOSFET; continuous drain current is rated at 5.8 A and pulsed drain current at 30 A, with drain-source voltage VDS of 30 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | DOWO |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `AO3400NSA`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `ao3400nsa-etched.step` / `ao3400nsa-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ao3400nsa.step` / `ao3400nsa.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [DOWO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602993008895934464) (7 pp, sha256 `b924c68e2503d75c`, retrieved 2026-10-09, 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/ao3400nsa-datasheet.pdf)