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Contents

README

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SP40P28T1

Siliup · MOSFETs · SOT-23-3L

SP40P28T1 from Siliup, in a SOT-23-3L. 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 absolute maximum gate-source voltage of ±20 V and threshold of -1.2 V to -2.5 V at ID=-250µA.
2 S passive Source of the P-channel MOSFET; the body diode conducts from drain to source with forward voltage up to -1.2 V at IS=-1A.
3 D passive Drain; rated for -40 V drain-source voltage and -6 A continuous drain current.

Key specifications

Parameter Value
Manufacturer Siliup
Package SOT-23-3L
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 VDSS -40 V 2
Gate-Source Voltage VGSS -20 20 V 2
Continuous Drain Current ID -6 A 2
Pulse Drain Current Tested IDM -24 A 2
Power Dissipation PD 1 W 2
Storage Temperature Range TSTG -55 150 °C 2
Operating Junction Temperature Range TJ -55 150 °C 2
Thermal Resistance Junction-to-Ambient RθJA 125 °C/W 2
Drain-Source Breakdown Voltage BVDSS -40 V VGS=0V, ID=-250µA 2
Drain-Source Leakage Current IDSS -1 uA VDS=-32V, VGS=0V 2
Gate-Source Leakage Current IGSS -100 100 nA VGS=±20V, VDS=0V 2
Gate Threshold Voltage VGS(th) -1.2 -1.5 -2.5 V VDS=VGS, ID=-250µA 2
Static Drain-Source On-Resistance (VGS=-10V) RDS(ON) 28 35 mΩ VGS=-10V, ID=-4.1A 2
Static Drain-Source On-Resistance (VGS=-4.5V) RDS(ON) 38 50 mΩ VGS=-4.5V, ID=-3A 2
Diode Forward Voltage VSD -1.2 V VGS=0V, IS=-1A, TJ=25℃ 2

CAD (KiCad official)

  • Symbol: SP40P28T1
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)
  • 3D model files: sp40p28t1-etched.step / sp40p28t1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sp40p28t1.step / sp40p28t1.glb are the bare package body.

Provenance

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

  • Datasheet: Siliup datasheet (5 pp, sha256 f2e1c2632cb6dcc1, 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