# WSD75N12GDN56

**Winsok Semicon** · MOSFETs · DFN5X6-8

WSD75N12GDN56 from Winsok Semicon, in a DFN5X6-8. 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 | S | passive | Source terminal of the N-channel MOSFET, which carries the continuous drain current of up to 75 A at Tc=25℃. |
| 2 | S | passive | Source terminal of the N-channel MOSFET, which carries the continuous drain current of up to 75 A at Tc=25℃. |
| 3 | S | passive | Source terminal of the N-channel MOSFET, which carries the continuous drain current of up to 75 A at Tc=25℃. |
| 4 | G | input | Gate terminal with an absolute maximum gate-to-source voltage of ±20 V and a threshold of 2.5 to 3.5 V. |
| 5 | D | passive | Drain terminal rated for 120 V drain-to-source voltage, 75 A continuous current at Tc=25℃ and 320 A pulsed current. |
| 6 | D | passive | Drain terminal rated for 120 V drain-to-source voltage, 75 A continuous current at Tc=25℃ and 320 A pulsed current. |
| 7 | D | passive | Drain terminal rated for 120 V drain-to-source voltage, 75 A continuous current at Tc=25℃ and 320 A pulsed current. |
| 8 | D | passive | Drain terminal rated for 120 V drain-to-source voltage, 75 A continuous current at Tc=25℃ and 320 A pulsed current. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Winsok Semicon |
| Package | DFN5X6-8 |
| Category | Triode/MOS Tube/Transistor |
| Pins | 9 |

## 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 to Source Breakdown Voltage | VDSS | 120 |  |  | V | VGS=0V, ID=250µA | 2 |
| Drain to Source Leakage Current | IDSS |  |  | 1 | µA | VDS = 120V, VGS= 0V | 2 |
| Gate to Source Forward Leakage | IGSS(F) |  |  | 100 | nA | VGS =+20V | 2 |
| Gate to Source Reverse Leakage | IGSS(R) |  |  | -100 | nA | VGS =-20V | 2 |
| Gate Threshold Voltage | VGS(TH) | 2.5 | 3 | 3.5 | V | VDS=VGS, ID = 250µA | 2 |
| Drain-to-Source On-Resistance | RDS(ON)1 |  | 6 | 6.8 | mΩ | VGS=10V, ID=20A | 2 |
| Forward Transconductance | gFS | 130 |  |  | S | VDS=5V, ID=50A | 2 |
| Diode Forward Current | IS |  |  | 100 | A | TC =25 °C | 2 |
| Diode Pulse Current | ISM |  |  | 320 | A |  | 2 |
| Diode Forward Voltage | VSD |  |  | 1.2 | V | IS=6.0A, VGS=0V | 2 |
| Drain-Source Voltage | VDSS |  |  | 120 | V |  | 1 |
| Gate-to-Source Voltage | VGS | -20 |  | 20 | V |  | 1 |
| Continuous Drain Current | ID |  |  | 75 | A | Tc=25℃ | 1 |
| Continuous Drain Current | ID |  |  | 70 | A | Tc=70℃ | 1 |
| Pulsed Drain Current | IDM |  |  | 320 | A |  | 1 |
| Single pulse avalanche current | IAR |  |  | 40 | A |  | 1 |
| Single pulse avalanche energy | EAS |  |  | 240 | mJ | VDD=50V, L=0.3mH, Rg=25Ω, Starting TJ=25 ℃ | 1 |
| Power Dissipation | PD |  |  | 125 | W |  | 1 |
| Operating Junction and Storage Temperature Range | TJ，Tstg | -55 |  | 150 | ℃ |  | 1 |
| Maximum Temperature for Soldering | TL |  |  | 260 | ℃ |  | 1 |
| Thermal Resistance, Junction-to-Case | RθJC |  |  | 1 | ℃/W |  | 1 |
| Thermal Resistance, Junction-to-Ambient | RθJA |  |  | 50 | ℃/W | Surface mounted on 1 inch² FR-4 board, 2OZ copper | 1 |

## CAD (KiCad official)

- Symbol: `WSD75N12GDN56`
- Footprint: `Package_DFN_QFN:DFN-S-8-1EP_6x5mm_P1.27mm`
- 3D model: DFN5X6-8 (KiCad packages3D, STEP)
- 3D model files: `wsd75n12gdn56-etched.step` / `wsd75n12gdn56-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `wsd75n12gdn56.step` / `wsd75n12gdn56.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Winsok Semicon datasheet](docs/wsd75n12gdn56-datasheet.pdf) (5 pp, sha256 `3bd17b5b8bb15303`, retrieved 2026-11-05, 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/wsd75n12gdn56-datasheet.pdf)