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WTM3401

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WPMtek Wei Pan Microelectronics MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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WTM3401

WPMtek Wei Pan Microelectronics · MOSFETs · SOT-23

WTM3401 from WPMtek Wei Pan Microelectronics, in a SOT-23. 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 of the P-channel MOSFET; VGS absolute maximum ±20 V, threshold VGS(th) -0.5 V to -1.3 V at IDS = 250 µA.
2 S passive Source of the P-channel MOSFET; continuous diode forward current IS max -4.7 A at TA = 25 °C.
3 D passive Drain of the P-channel MOSFET; VDS max -30 V and drain current -4.7 A at TA = 25 °C, VGS = 4.5 V.

Key specifications

Parameter Value
Manufacturer WPMtek Wei Pan Microelectronics
Package SOT-23
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 -30 V TA = 25 ℃ 2
Gate-Source Voltage VGS -20 20 V TA = 25 ℃ 2
Drain Current ID -4.7 A TA = 25 ℃, VGS = 4.5 V 2
Pulsed Drain Current IDM -20 A TA = 25 ℃, VGS = 4.5 V 2
Total Power Dissipation Ptot 1.3 W TA = 25 ℃ 2
Total Power Dissipation Ptot 0.8 W TA = 100 ℃ 2
Storage Temperature Tstg -55 150 ℃ 2
Junction Temperature TJ 150 ℃ 2
Diode Forward Current IS -4.7 A TA = 25 ℃ 2
Thermal Resistance Junction to Ambient RθJA 150 ℃/W Surface Mounted on 1 in2 pad area, t 10 sec (≤ symbol lost in extraction) 2
Drain-Source Breakdown Voltage BVDSS -30 V VGS = 0 V, IDS = 250 μA 3
Gate Threshold Voltage VGS(th) -0.5 -1.3 V VDS = VGS, IDS = 250 μA 3
Drain Leakage Current IDSS -1 μA VDS = -30 V, VGS = 0 V 3
Drain Leakage Current IDSS -30 μA TJ = 85 ℃ 3
Gate Leakage Current IGSS -100 100 nA VGS = ± 10 V, VDS = 0 V 3
On-State Resistance RDS(ON) 42 52 mΩ VGS = -10 V, IDS = -4 A 3
On-State Resistance RDS(ON) 48 65 mΩ VGS = -4.5 V, IDS = -2 A 3
On-State Resistance RDS(ON) 68 85 mΩ VGS = -2.5 V, IDS = -1 A 3
Diode Forward Voltage VSD -1.2 V ISD = -4.4 A, VGS = 0 V 3

CAD (KiCad official)

  • Symbol: WTM3401
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: wtm3401-etched.step / wtm3401-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); wtm3401.step / wtm3401.glb are the bare package body.

Provenance

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

  • Datasheet: WPMtek Wei Pan Microelectronics datasheet (6 pp, sha256 87bd9ad72490da91, retrieved 2026-10-18, 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