# HSS3401

**HUASHUO** · MOSFETs · SOT-23L

HSS3401 from HUASHUO, in a SOT-23L. 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; controls the channel, with an absolute maximum VGS of ±12 V and a threshold VGS(th) of -0.5 to -1.3 V. |
| 2 | S | passive | Source of the P-channel MOSFET; continuous source current up to -4.2 A. |
| 3 | D | passive | Drain; VDS rated -30 V, continuous drain current -4.2 A at 25 °C and pulsed -16 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HUASHUO |
| Package | SOT-23L |
| 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 Breakdown Voltage | BVDSS | -30 |  |  | V | VGS=0V, ID=-250uA | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 46 | 60 | mΩ | VGS=-4.5V, ID=-4.2A | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 62 | 80 | mΩ | VGS=-2.5V, ID=-3A | 2 |
| Gate Threshold Voltage | VGS(th) | -0.5 | -0.9 | -1.3 | V | VGS=VDS, ID=-250uA | 2 |
| Drain-Source Leakage Current | IDSS |  |  | -1 | uA | VDS=-24V, VGS=0V, TJ=25℃ | 2 |
| Drain-Source Leakage Current | IDSS |  |  | -5 | uA | VDS=-24V, VGS=0V, TJ=55℃ | 2 |
| Gate-Source Leakage Current | IGSS | -100 |  | 100 | nA | VGS=±12V, VDS=0V | 2 |
| Continuous Source Current | IS |  |  | -4.2 | A | VG=VD=0V, Force Current | 2 |
| Diode Forward Voltage | VSD |  |  | -1.2 | V | VGS=0V, IS=-1A, TJ=25℃ | 2 |
| Drain-Source Voltage | VDS | -30 |  | -30 | V |  | 1 |
| Gate-Source Voltage | VGS | -12 |  | 12 | V |  | 1 |
| Continuous Drain Current | ID@TA=25℃ |  |  | -4.2 | A | TA=25℃ | 1 |
| Continuous Drain Current | ID@TA=70℃ |  |  | -3.7 | A | TA=70℃ | 1 |
| Pulsed Drain Current | IDM |  |  | -16 | A |  | 1 |
| Total Power Dissipation | PD@TA=25℃ |  |  | 1.4 | W | TA=25℃ | 1 |
| Total Power Dissipation | PD@TA=70℃ |  |  | 0.95 | W | TA=70℃ | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance Junction-Ambient | RθJA |  |  | 100 | ℃/W | Surface mounted on 1 inch² FR-4 board, 2OZ copper (note 1) | 1 |
| Thermal Resistance Junction-Ambient | RθJA |  |  | 70 | ℃/W | t ≤10s, surface mounted on 1 inch² FR-4 board, 2OZ copper (note 1) | 1 |

## CAD (KiCad official)

- Symbol: `HSS3401`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23L (KiCad packages3D, STEP)
- 3D model files: `hss3401-etched.step` / `hss3401-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hss3401.step` / `hss3401.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HUASHUO datasheet](docs/hss3401-datasheet.pdf) (6 pp, sha256 `f85b9593baa7f248`, retrieved 2026-11-04, 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/hss3401-datasheet.pdf)