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Contents

README

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STU417S

MSKSEMI · MOSFETs · TO-252

STU417S from MSKSEMI, in a TO-252. 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, with a maximum gate-source voltage of ±20 V and a gate threshold of -1.0 to -2.5 V.
2 D passive Drain, which is the middle lead and the exposed tab, rated for VDS of -40 V and continuous ID of -50 A at TC=25°C.
3 S passive Source of the P-channel MOSFET, with body-diode continuous source current of -50 A.

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package TO-252
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 -40 V 2
Gate-Source Voltage VGS -20 20 V 2
Continuous Drain Current ID -50 A TC=25℃, VGS @ 10V 2
Continuous Drain Current ID -31 A TC=100℃, VGS @ 10V 2
Pulsed Drain Current IDM -200 A 2
Total Power Dissipation PD 55 W TC=25℃ 2
Storage Temperature Range TSTG -55 150 ℃ 2
Operating Junction Temperature Range TJ -55 150 ℃ 2
Thermal Resistance Junction-ambient RθJA 61 ℃/W 2
Thermal Resistance Junction-Case RθJC 2.27 ℃/W 2
Drain-Source Breakdown Voltage V(BR)DSS -40 V VGS = 0V, ID = -250µA 3
Gate-body Leakage current IGSS -100 100 nA VDS = 0V, VGS = ±20V 3
Zero Gate Voltage Drain Current IDSS 1 μA TJ=25°C, VDS = -40V, VGS = 0V 3
Zero Gate Voltage Drain Current IDSS 5 μA TJ=100°C, VDS = -40V, VGS = 0V 3
Gate-Threshold Voltage VGS(th) -1 -1.6 -2.5 V VDS = VGS, ID = -250µA 3
Drain-Source On-Resistance RDS(on) 10.5 13 mΩ VGS = -10V, ID = -16A 3
Drain-Source On-Resistance RDS(on) 14.2 20 mΩ VGS = -4.5V, ID = -12A 3
Diode Forward Voltage VSD -1.2 V IS = -1A, VGS = 0V 3
Continuous Source Current IS -50 A TC=25°C 3

CAD (KiCad official)

  • Symbol: STU417S
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: stu417s-etched.step / stu417s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stu417s.step / stu417s.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (8 pp, sha256 618b17e3c6c2865c, 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