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Contents

README

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WSR45P10

Winsok Semicon · MOSFETs · TO-220

WSR45P10 from Winsok Semicon, in a TO-220. 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 VGSS rated ±20 V and threshold VGS(th) of -1 to -3 V at IDS=-250μA.
2 D passive Drain (also connected to the tab); VDSS rated -100 V and continuous drain current -40 A at TC=25°C.
3 S passive Source; diode continuous forward current is -40 A at TC=25°C.

Key specifications

Parameter Value
Manufacturer Winsok Semicon
Package TO-220
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 1
Storage Temperature Range TSTG -55 175 °C 1
Drain-Source Voltage VDSS -100 V 1
Maximum Junction Temperature TJ 175 °C 1
Diode Continuous Forward Current IS -40 A TC=25°C; mounted on large heat sink 1
Pulsed Drain Current IDM -120 A Repetitive rating; pulse width limited by junction temperature 1
Continuous Drain Current ID -40 A TC=25°C 1
Continuous Drain Current ID -26 A TC=100°C 1
Maximum Power Dissipation PD 136 W TC=25°C 1
Maximum Power Dissipation PD 68 W TC=100°C 1
Avalanche Energy, Single Pulsed EAS 308 mJ L=0.5mH; VD=-80V (note ***) 1
Thermal Resistance-Junction to Case RθJC 1.1 °C/W 1
Thermal Resistance-Junction to Ambient RθJA 62.5 °C/W 1
Drain-Source Breakdown Voltage BVDSS -100 V VGS=0V, IDS=-250μA 2
Zero Gate Voltage Drain Current IDSS -1 μA VDS=-100 V, VGS=0V 2
Zero Gate Voltage Drain Current IDSS -10 μA TJ=85°C 2
Gate Threshold Voltage VGS(th) -1 -2 -3 V VDS=VGS, IDS=-250μA 2
Gate Leakage Current IGSS -100 100 nA VGS=±20V, VDS=0V 2
Drain-Source On-state Resistance RDS(ON) 44 55 mΩ VGS=-10V, IDS=-20A 2
Drain-Source On-state Resistance RDS(ON) 47 58.5 mΩ VGS=-4.5V, IDS=-20A 2
Diode Forward Voltage VSD -0.8 -1.2 V ISD=-20A, VGS=0V 2

CAD (KiCad official)

  • Symbol: WSR45P10
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: wsr45p10-etched.step / wsr45p10-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); wsr45p10.step / wsr45p10.glb are the bare package body.

Provenance

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

  • Datasheet: Winsok Semicon datasheet (10 pp, sha256 0af1078cd6c34af0, retrieved 2026-10-21, 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