# WSP4067B

**Winsok Semicon** · MOSFETs · SOP-8

WSP4067B from Winsok Semicon, in a SOP-8. 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 | S1 | passive | Source of MOSFET 1; the datasheet rates the N-channel at 40V VDS and 6.0A continuous drain current, and the P-channel at -40V and -5.1A. |
| 2 | G1 | input | Gate of MOSFET 1, with a gate-source voltage rating of ±20V. |
| 3 | S2 | passive | Source of MOSFET 2; the datasheet rates the N-channel at 40V VDS and 6.0A continuous drain current, and the P-channel at -40V and -5.1A. |
| 4 | G2 | input | Gate of MOSFET 2, with a gate-source voltage rating of ±20V. |
| 5 | D2 | passive | Drain of MOSFET 2, tied internally to pins 6 (D2); drain-source voltage rating is 40V (N-channel) or -40V (P-channel). |
| 6 | D2 | passive | Drain of MOSFET 2, tied internally to pin 5 (D2); drain-source voltage rating is 40V (N-channel) or -40V (P-channel). |
| 7 | D1 | passive | Drain of MOSFET 1, tied internally to pin 8 (D1); drain-source voltage rating is 40V (N-channel) or -40V (P-channel). |
| 8 | D1 | passive | Drain of MOSFET 1, tied internally to pin 7 (D1); drain-source voltage rating is 40V (N-channel) or -40V (P-channel). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Winsok Semicon |
| Package | SOP-8 |
| Category | Transistors/Thyristors |
| Pins | 8 |

## 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 (N-Channel) | VDS |  |  | 40 | V |  | 1 |
| Drain-Source Voltage (P-Channel) | VDS |  |  | -40 | V |  | 1 |
| Gate-Source Voltage (N-Channel) | VGS | -20 |  | 20 | V |  | 1 |
| Gate-Source Voltage (P-Channel) | VGS | -20 |  | 20 | V |  | 1 |
| Continuous Drain Current (N-Channel) | ID@TC=25℃ |  |  | 6 | A |  | 1 |
| Continuous Drain Current (P-Channel) | ID@TC=25℃ |  |  | -5.1 | A |  | 1 |
| Continuous Drain Current (N-Channel) | ID@TC=70℃ |  |  | 3.9 | A |  | 1 |
| Continuous Drain Current (P-Channel) | ID@TC=70℃ |  |  | -3.2 | A |  | 1 |
| Pulsed Drain Current (N-Channel) | IDM |  |  | 24 | A |  | 1 |
| Pulsed Drain Current (P-Channel) | IDM |  |  | -20 | A |  | 1 |
| Total Power Dissipation (N-Channel) | PD@TC=25℃ |  |  | 2 | W |  | 1 |
| Total Power Dissipation (P-Channel) | PD@TC=25℃ |  |  | 2 | W |  | 1 |
| Operating Temperature / Storage Temperature Range | TJ/TSTG | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance Junction-Ambient | RθJA |  |  | 62.5 | ℃/W |  | 1 |
| Thermal Resistance Junction-Case | RθJC |  |  | 50 | ℃/W |  | 1 |
| Drain-Source Breakdown Voltage (N-Channel) | BVDSS | 40 |  |  | V | VGS=0V , ID=250uA | 2 |
| Static Drain-Source On-Resistance (N-Channel) | RDS(ON) |  | 25 | 35 | mΩ | VGS=10V , ID=6A | 2 |
| Static Drain-Source On-Resistance (N-Channel) | RDS(ON) |  | 40 | 55 | mΩ | VGS=4.5V , ID=5A | 2 |
| Gate Threshold Voltage (N-Channel) | VGS(th) | 1 | 1.6 | 2.2 | V |  | 2 |
| Drain-Source Leakage Current (N-Channel) | IDSS |  |  | 1 | uA | VDS=32V , VGS=0V , TJ=85℃ | 2 |
| Drain-Source Leakage Current (N-Channel) | IDSS |  |  | 30 | uA | VDS=32V , VGS=0V , TJ=85℃ | 2 |
| Gate-Source Leakage Current (N-Channel) | IGSS | -100 |  | 100 | nA | VGS=±20V , VDS=0V | 2 |
| Continuous Source Current (N-Channel) | IS |  |  | 2.6 | A | TA=25°C. | 2 |
| Diode Forward Voltage (N-Channel) | VSD |  |  | 1.3 | V | VGS=0V , IS=1A | 2 |
| Drain-Source Breakdown Voltage (P-Channel) | BVDSS | -40 |  |  | V | VGS=0V , ID=-250uA | 3 |
| Static Drain-Source On-Resistance (P-Channel) | RDS(ON) |  | 40 | 50 | mΩ | VGS=-10V , ID=-4A | 3 |
| Static Drain-Source On-Resistance (P-Channel) | RDS(ON) |  | 55 | 75 | mΩ | VGS=-4.5V , ID=-3A | 3 |
| Gate Threshold Voltage (P-Channel) | VGS(th) | -1 | -1.6 | -2.2 | V |  | 3 |
| Drain-Source Leakage Current (P-Channel) | IDSS |  |  | -1 | uA | VDS=-32V , VGS=0V , TJ=85℃ | 3 |
| Drain-Source Leakage Current (P-Channel) | IDSS |  |  | -30 | uA | VDS=-32V , VGS=0V , TJ=85℃ | 3 |
| Gate-Source Leakage Current (P-Channel) | IGSS | -100 |  | 100 | nA | VGS=±20V , VDS=0V | 3 |
| Continuous Source Current (P-Channel) | IS |  |  | -2.6 | A | TA=25°C. | 3 |
| Diode Forward Voltage (P-Channel) | VSD |  |  | -1.2 | V | VGS=0V , IS=-1A | 3 |

## CAD (KiCad official)

- Symbol: `WSP4067B`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `wsp4067b-etched.step` / `wsp4067b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `wsp4067b.step` / `wsp4067b.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/8588917016731901952) (10 pp, sha256 `a22604e1ed8cb1f7`, retrieved 2026-10-18, 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/wsp4067b-datasheet.pdf)