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WST2004

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Winsok Semicon MOSFETs, SOT-723. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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WST2004

Winsok Semicon · MOSFETs · SOT-723

WST2004 from Winsok Semicon, in a SOT-723. 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 D passive Drain terminal of the N-channel MOSFET, rated for VDS 20 V and continuous ID 400 mA at TA=25°C (VGS=10V).
2 G input Gate terminal of the N-channel MOSFET, with VGS limited to ±8 V (absolute maximum).
3 S passive Source terminal of the N-channel MOSFET, with continuous source current IS limited to 100 mA.

Key specifications

Parameter Value
Manufacturer Winsok Semicon
Package SOT-723
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 20 V 1
Gate-Source Voltage VGS -8 8 V 1
Continuous Drain Current ID@TA=25℃ 400 mA TA=25℃, VGS @ 10V 1
Pulsed Drain Current IDM 1.2 A note 2 1
Total Power Dissipation PD@TA=25℃ 0.15 W TA=25℃ 1
Storage Temperature Range TSTG -55 150 ℃ 1
Junction Temperature TJ 150 ℃ 1
Lead Temperature for Soldering Purposes TL 260 1/8 inch from case for 10 s 1
Thermal Resistance from Junction to Ambient RθJA 823 ℃/W Surface mounted on FR4 board, minimum recommended pad size (note 1) 1
Drain-Source Breakdown Voltage BVDSS 20 V VGS=0V, ID=250uA 2
BVDSS Temperature Coefficient △BVDSS/△TJ 0.05 V/℃ Reference to 25℃, ID=1mA 2
Static Drain-Source On-Resistance RDS(ON) 240 450 mΩ VGS=4.5V, ID=0.4A 2
Static Drain-Source On-Resistance RDS(ON) 280 765 mΩ VGS=2.5V, ID=0.3A 2
Static Drain-Source On-Resistance RDS(ON) 410 850 mΩ VGS=1.8V, ID=0.2A 2
Static Drain-Source On-Resistance RDS(ON) 450 950 mΩ VGS=1.5V, ID=0.1A 2
Gate Threshold Voltage VGS(th) 0.35 1 V VGS=VDS, ID=250uA 2
VGS(th) Temperature Coefficient △VGS(th) -3.7 mV/℃ 2
Drain-Source Leakage Current IDSS 1 uA VDS=16V, VGS=0V, TJ=25℃ 2
Drain-Source Leakage Current IDSS 5 uA VDS=16V, VGS=0V, TJ=55℃ 2
Gate-Source Leakage Current IGSS -10 10 uA VGS=±8V, VDS=0V 2
Forward Transconductance gfs 1.5 S VDS=5V, ID=0.1A 2
Turn-On Delay Time Td(on) 5.8 ns VDD=15V, VGS=10V, RG=6Ω, ID=0.1A 2
Rise Time Tr 2.9 ns 2
Turn-Off Delay Time Td(off) 18 ns 2
Fall Time Tf 9 ns 2
Input Capacitance Ciss 88 pF VDS=15V, VGS=0V, f=1MHz 2
Output Capacitance Coss 15 pF 2
Reverse Transfer Capacitance Crss 10 pF 2
Continuous Source Current IS 100 mA VG=VD=0V, Force Current 2
Pulsed Source Current ISM 0.5 A 2
Diode Forward Voltage VSD 1.2 V VGS=0V, IS=0.2A, TJ=25℃ 2

CAD (KiCad official)

  • Symbol: WST2004
  • Footprint: Package_TO_SOT_SMD:SOT-723
  • 3D model: SOT-723, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.5 mm nominal SOT-723 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: wst2004-etched.step / wst2004-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); wst2004.step / wst2004.glb are the bare package body.

Provenance

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

  • Datasheet: Winsok Semicon datasheet (5 pp, sha256 a0759b9246850576, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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