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Generated by kicad-footprint-generator · KiCad file format 20260206

Name	Last commit message	Last updated
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README.md	Publish 0.1.0 · Ray	23d ago
wsk220n04-etched.glb	Publish 0.1.0 · Ray	23d ago
wsk220n04-etched.step	wsk220n04: factory component page (tier=lcsc) · Ray	23d ago
wsk220n04-hero.glb	wsk220n04: hero GLB from the etched model (keeps the MPN mark) · Ray	23d ago
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wsk220n04.step	Publish 0.1.0 · Ray	23d ago

WSK220N04

Winsok Semicon · MOSFETs · TO-263

WSK220N04 from Winsok Semicon, in a TO-263. 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; controls the channel, with VGS rated ±20 V maximum and threshold of 2.0 to 4.0 V at IDS=250μA.
2	D	passive	Drain, also connected to the exposed tab; VDSS is 40 V and continuous drain current is 220 A at TC=25°C.
3	S	passive	Source; diode continuous forward current is 208 A at TC=25°C.

Key specifications

Parameter	Value
Manufacturer	Winsok Semicon
Package	TO-263
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
Gate-Source Voltage	VGSS	-20		20	V	Common ratings, TC=25°C unless otherwise noted	1
Gate Leakage Current	IGSS	-100		100	nA	VGS=±20V, VDS=0V	2
Drain-Source Breakdown Voltage	BVDSS	40			V	VGS=0V, IDS=250μA	2
Zero Gate Voltage Drain Current	IDSS			1	μA	VDS=40V, VGS=0V	2
Zero Gate Voltage Drain Current	IDSS			10	μA	TJ=85°C	2
Gate Threshold Voltage	VGS(th)	2	3	4	V	VDS=VGS, IDS=250μA	2
Drain-Source On-state Resistance	RDS(ON)		2.5	3.2	mΩ	VGS=10V, IDS=104A; pulse test, pulse width ≤300μs, duty cycle ≤2%	2
Diode Forward Voltage	VSD		0.8	1.2	V	ISD=104A, VGS=0V; pulse test	2
Drain-Source Voltage	VDSS			40	V	Common ratings, TC=25°C unless otherwise noted	1
Maximum Junction Temperature	TJ			175	°C	Common ratings, TC=25°C unless otherwise noted	1
Storage Temperature Range	TSTG	-55		175	°C	Common ratings, TC=25°C unless otherwise noted	1
Diode Continuous Forward Current	IS			208	A	TC=25°C	1
Pulsed Drain Current	IDM			760	A	TC=25°C; repetitive rating, pulse width limited by junction temperature	1
Continuous Drain Current	ID			220	A	TC=25°C	1
Continuous Drain Current	ID			139	A	TC=100°C	1
Maximum Power Dissipation	PD			218	W	TC=25°C	1
Maximum Power Dissipation	PD			109	W	TC=100°C	1
Thermal Resistance-Junction to Case	RθJC		0.55		°C/W		1
Thermal Resistance-Junction to Ambient	RθJA		62.5		°C/W		1

CAD (KiCad official)

Symbol: WSK220N04
Footprint: Package_TO_SOT_SMD:TO-263-2
3D model: TO-263 (KiCad packages3D, STEP)
3D model files: wsk220n04-etched.step / wsk220n04-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); wsk220n04.step / wsk220n04.glb are the bare package body.

Provenance

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

Datasheet: Winsok Semicon datasheet (7 pp, sha256 ee1c203bfbbbc3cb, 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