# AO3401-ED

**HXY MOSFET** · MOSFETs · SOT-23

AO3401-ED from HXY MOSFET, 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 | G | input | Gate; gate-source voltage limit is ±12 V, with operation down to 1.8 V gate drive and threshold of -0.4 to -1.0 V at ID=-250 µA. |
| 2 | S | passive | Source; P-channel MOSFET source terminal, body-diode continuous current up to -2.3 A. |
| 3 | D | passive | Drain; drain-source voltage rating is -20 V, continuous drain current -3 A and pulsed -10 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOT-23 |
| Category | Triode/MOS Tube/Transistor |
| 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 |  | 1 |
| Gate-Source Voltage | VGS | -12 |  | 12 | V |  | 1 |
| Drain Current-Continuous | ID |  |  | -3 | A |  | 1 |
| Drain Current-Pulsed | IDM |  |  | -10 | A | Note 1 | 1 |
| Maximum Power Dissipation | PD |  |  | 0.7 | W |  | 1 |
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance, Junction-to-Ambient | RθJA |  |  | 178 | ℃/W | Note 2: device mounted on FR-4 PCB, 1 inch x 0.85 inch x 0.062 inch | 1 |
| Drain-Source Breakdown Voltage | BVDSS | -20 |  |  | V | VGS= 0V, ID=-250μA | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | -1 | μA | VDS=-15V,VGS=0V,TC=25℃ | 2 |
| Gate-Body Leakage Current | IGSS | -100 |  | 100 | nA | VGS= ±10V, VDS=0V | 2 |
| Gate Threshold Voltage | VGS(th) | -0.4 | -0.62 | -1 | V | VDS= VGS, ID=-250μA | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 100 | 130 | mΩ | VGS= -4.5V, ID=-2A | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 132 | 148 | mΩ | VGS= -2.5V, ID=-1.6A | 2 |
| Diode Forward Voltage | VSD |  | -0.8 | -1.2 | V | IS=-2A,VGS=0V | 2 |
| Maximum Body-Diode Continuous Current | IS |  |  | -2.3 | A |  | 2 |

## CAD (KiCad official)

- Symbol: `AO3401-ED`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `ao3401-ed-etched.step` / `ao3401-ed-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ao3401-ed.step` / `ao3401-ed.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HXY MOSFET datasheet](docs/ao3401-ed-datasheet.pdf) (6 pp, sha256 `221b2a83dac45141`, retrieved 2026-11-12, 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/ao3401-ed-datasheet.pdf)