# WSF3038

**Winsok Semicon** · MOSFETs · TO-252

WSF3038 from Winsok Semicon, in a TO-252. 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 limited to ±20 V. |
| 2 | D | passive | Drain (also the exposed tab); drain-source voltage 30 V max, continuous drain current 38 A at TC=25℃. |
| 3 | S | passive | Source; continuous source current 10 A max, pulsed 60 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Winsok Semicon |
| Package | TO-252 |
| 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 |  |  | 30 | V |  | 1 |
| Gate-Source Voltage | VGS | -20 |  | 20 | V |  | 1 |
| Continuous Drain Current | ID@TC=25℃ |  |  | 38 | A | VGS @ 10V | 1 |
| Continuous Drain Current | ID@TC=100℃ |  |  | 18 | A | VGS @ 10V | 1 |
| Pulsed Drain Current | IDM |  |  | 60 | A |  | 1 |
| Single Pulse Avalanche Energy | EAS |  |  | 72 | mJ |  | 1 |
| Avalanche Current | IAS |  |  | 21 | A |  | 1 |
| Total Power Dissipation | PD@TC=25℃ |  |  | 25 | W | TC=25℃ | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance Junction-Ambient | RθJA |  |  | 25 | ℃/W | (<10s) | 1 |
| Thermal Resistance Junction-Ambient | RθJA |  |  | 62 | ℃/W | Steady State | 1 |
| Thermal Resistance Junction-Case | RθJC |  |  | 5 | ℃/W |  | 1 |
| Drain-Source Breakdown Voltage | BVDSS | 30 |  |  | V | VGS=0V , ID=250uA | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 15 | 20 | mΩ | VGS=10V , ID=10A | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 22 | 35 | mΩ | VGS=4.5V , ID=5A | 2 |
| Gate Threshold Voltage | VGS(th) | 1 | 1.5 | 2.5 | V |  | 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=±20V , VDS=0V | 2 |
| Single Pulse Avalanche Energy | EAS | 16 |  |  | mJ | VDD=25V , L=0.1mH , IAS=10A | 2 |
| Continuous Source Current | IS |  |  | 10 | A |  | 2 |
| Pulsed Source Current | ISM |  |  | 60 | A | VG=VD=0V , Force Current | 2 |
| Diode Forward Voltage | VSD |  |  | 1.2 | V | VGS=0V , IS=15A , Tj=25℃ | 2 |

## CAD (KiCad official)

- Symbol: `WSF3038`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `wsf3038-etched.step` / `wsf3038-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `wsf3038.step` / `wsf3038.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Winsok Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588900303987359744) (5 pp, sha256 `deff3e630a9ec915`, retrieved 2026-10-17, 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/wsf3038-datasheet.pdf)