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Contents

README

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IRF4905

UMW · MOSFETs · TO-220

IRF4905 from UMW, 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 terminal; the datasheet rates the gate-to-source voltage VGS at ±20 V.
2 D passive DRAIN terminal; rated VDS = -55 V with continuous drain current ID = -74 A at TC = 25°C.
3 S passive SOURCE terminal; continuous body-diode source current IS = -74 A.

Key specifications

Parameter Value
Manufacturer UMW
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
Continuous Drain Current ID -74 A VGS=-10V, TC=25°C 1
Continuous Drain Current ID -52 A VGS=-10V, TC=100°C 1
Pulsed Drain Current IDM -260 A 1
Power Dissipation PD 200 W TC=25°C 1
Linear Derating Factor 1.3 W/°C 1
Gate-to-Source Voltage VGS -20 20 V 1
Single Pulse Avalanche Energy EAS 930 mJ 1
Avalanche Current IAR -38 A 1
Repetitive Avalanche Energy EAR 20 mJ 1
Peak Diode Recovery dv/dt dv/dt -5 V/ns 1
Operating Junction and Storage Temperature Range TJ, TSTG -55 175 °C 1
Soldering Temperature 300 °C for 10 seconds, 1.6mm from case 1
Mounting Torque, 6-32 or M3 screw 10 lbf•in 6-32 or M3 screw 1
Junction-to-Case RθJC 0.75 °C/W 2
Junction-to-Ambient RθJA 62 °C/W 2
Case-to-Sink, Flat, Greased Surface RθCS 0.5 °C/W 2
Drain-to-Source Breakdown Voltage V(BR)DSS -55 V ID=-250µA, VGS=0V 3
Static Drain-to-Source On-Resistance RDS(ON) 18 20 mΩ VGS=-10V, ID=-38A 3
Gate Threshold Voltage VGS(th) -2 -4 V VDS=VGS, ID=-250µA 3
Forward Transconductance gFS 21 S VDS=-25V, ID=-38A 3
Drain-to-Source Leakage Current IDSS -25 µA VDS=-55V, VGS=0V 3
Drain-to-Source Leakage Current IDSS -250 µA VDS=-44V, VGS=0V, TJ=150°C 3
Gate-to-Source Forward Leakage IGSS 100 nA VGS=20V 3
Gate-to-Source Reverse Leakage IGSS -100 nA VGS=-20V 3
Total Gate Charge Qg 180 nC ID=-38A, VDS=-44V, VGS=-10V 3
Continuous Source Current (Body Diode) IS -74 A 4
Pulsed Source Current (Body Diode) ISM -260 A 4
Diode Forward Voltage VSD -1.6 V TJ=25°C, IS=-38A, VGS=0V 4
Reverse Recovery Time trr 130 ns TJ=25°C, IF=-38A, dI/dt=-100A/µs 4
Reverse Recovery Charge Qrr 350 nC TJ=25°C, IF=-38A, dI/dt=-100A/µs 4

CAD (KiCad official)

  • Symbol: IRF4905
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: irf4905-etched.step / irf4905-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); irf4905.step / irf4905.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (12 pp, sha256 496c55415f0fe16c, retrieved 2026-10-09, 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