component

WSF7N40

Public Made by Adom

by adom

Winsok Semicon MOSFETs, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistors-thyristorswsf7n40factory-2.0.0extractor-text

Verified WSF7N40

by Ray · last 4 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

4 Nov 2026RayPublished by the parts factory: tier lcsc, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: WSF7N40 · TO-252 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 5-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: TO-252-2
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-_oxyyqvx/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ wsf7n40.kicad_sym✓ wsf7n40.kicad_mod✓ wsf7n40.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Datasheet

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

WSF7N40

Winsok Semicon · MOSFETs · TO-252

WSF7N40 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 is limited to ±30 V absolute maximum, with a typical threshold of 3.5 V (2.0 V min, 4.0 V max) at ID=250uA.
2 D passive Drain, also connected to the exposed tab; drain-source voltage is rated 400 V with 7 A continuous drain current at TC=25℃ and 28 A pulsed.
3 S passive Source; continuous body-diode source current is 7 A max and pulsed source current is 28 A max.

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 400 V 1
Gate-Source Voltage VGS -30 30 V 1
Continuous Drain Current ID@TC=25℃ 7 A VGS @ 10V 1
Continuous Drain Current ID@TC=100℃ 4 A VGS @ 10V 1
Pulsed Drain Current IDM 28 A 1
Single Pulse Avalanche Energy EAS 176 mJ 1
Avalanche Current IAR 7 A 1
Total Power Dissipation PD@TC=25℃ 33 W 1
Storage Temperature Range TSTG -55 150 ℃ 1
Operating Junction Temperature Range TJ -55 150 ℃ 1
Thermal Resistance Junction-ambient RθJA 60 ℃/W Surface mounted on 1 inch² FR-4 board, 2OZ copper, t<10sec 1
Thermal Resistance Junction-Case RθJC 3.8 ℃/W Surface mounted on 1 inch² FR-4 board, 2OZ copper, t<10sec 1
Drain-Source Breakdown Voltage BVDSS 400 V VGS=0V, ID=250uA 2
Static Drain-Source On-Resistance RDS(ON) 0.8 1.1 Ω VGS=10V, ID=4A 2
Gate Threshold Voltage VGS(th) 2 3.5 4 V VGS=VDS, ID=250uA 2
Drain-Source Leakage Current IDSS 1 uA VDS=400V, VGS=0V, TJ=25℃ 2
Drain-Source Leakage Current IDSS 10 uA VDS=400V, VGS=0V, TJ=125℃ 2
Gate-Source Leakage Current IGSS -100 100 nA VGS=±30V, VDS=0V 2
Single Pulse Avalanche Energy EAS 90 mJ VDD=50V, L=0.1mH, IAS=4.5A 2
Continuous Source Current IS 7 A VG=VD=0V, Force Current 2
Pulsed Source Current ISM 28 A 2
Diode Forward Voltage VSD 1.4 V VGS=0V, IS=7A, TJ=25℃ 2

CAD (KiCad official)

  • Symbol: WSF7N40
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: wsf7n40-etched.step / wsf7n40-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); wsf7n40.step / wsf7n40.glb are the bare package body.

Provenance

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

  • Datasheet: Winsok Semicon datasheet (5 pp, sha256 1657071358a26743, 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