# HSS2302A

**HUASHUO** · MOSFETs · SOT-23

HSS2302A from HUASHUO, 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; the pin drawing labels G on the bottom-left lead, with gate-source voltage rated ±12 V and threshold of 0.4 V min to 1.2 V max at 250 uA. |
| 2 | S | passive | Source; the pin drawing labels S on the bottom-right lead, with continuous source current up to 3.6 A. |
| 3 | D | passive | Drain; the pin drawing labels D on the single top lead, with drain-source voltage rated 20 V and continuous drain current of 3.6 A at 25 °C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HUASHUO |
| Package | SOT-23 |
| 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 |  | 1 |
| Gate-Source Voltage | VGS | -12 |  | 12 | V |  | 1 |
| Continuous Drain Current | ID@TA=25℃ |  |  | 3.6 | A | VGS @ 4.5V | 1 |
| Continuous Drain Current | ID@TA=70℃ |  |  | 2.8 | A | VGS @ 4.5V | 1 |
| Pulsed Drain Current | IDM |  |  | 14.4 | A |  | 1 |
| Total Power Dissipation | PD@TA=25℃ |  |  | 1 | W |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance Junction-ambient | RθJA |  |  | 125 | ℃/W | Surface mounted on 1 inch² FR-4 board, 2OZ copper (note 1) | 1 |
| Thermal Resistance Junction-Case | RθJC |  |  | 80 | ℃/W | Note 1 | 1 |
| Drain-Source Breakdown Voltage | BVDSS | 20 |  |  | V | VGS=0V, ID=250uA | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 30 | 50 | mΩ | VGS=4.5V, ID=3A | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 40 | 70 | mΩ | VGS=2.5V, ID=2A | 2 |
| Gate Threshold Voltage | VGS(th) | 0.4 | 0.7 | 1.2 | V | VGS=VDS, ID=250uA | 2 |
| Drain-Source Leakage Current | IDSS |  |  | 1 | uA | VDS=16V, VGS=0V, TJ=25℃ | 2 |
| Drain-Source Leakage Current | IDSS |  |  | 5 | uA | VDS=16V, VGS=0V, TJ=55℃ | 2 |
| Gate-Source Leakage Current | IGSS | -100 |  | 100 | nA | VGS=±12V, VDS=0V | 2 |
| Continuous Source Current | IS |  |  | 3.6 | A | VG=VD=0V, Force Current | 2 |
| Diode Forward Voltage | VSD |  |  | 1.2 | V | VGS=0V, IS=1A, TJ=25℃ | 2 |

## CAD (KiCad official)

- Symbol: `HSS2302A`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `hss2302a-etched.step` / `hss2302a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hss2302a.step` / `hss2302a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HUASHUO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757799340007919616) (6 pp, sha256 `345dfb276bc1730b`, retrieved 2026-10-16, 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/hss2302a-datasheet.pdf)