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IRF3205 N-Channel MOSFET

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by Ray

55 V N-channel power MOSFET with very low on-resistance, up to 110 A, in TO-220.

mosfetn-channelpowerlow-rdsto-220infineon
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IRF3205

Infineon · MOSFET · TO-220

The IRF3205 is a 55 V N-channel power MOSFET with low 8 mOhm on-resistance and a high 110 A current rating. Its low Rds(on) and high current handling make it a workhorse for high-current DC switching, motor drives, battery management, and synchronous rectification, in a TO-220 package.

Pinout

Pin Name Type Function
1 G input Gate. Insulated MOSFET control terminal; V(GS(th))=2.0-4.0 V, absolute max V(GS)=±20 V. Drives the channel between Drain and Source.
2 D passive Drain. Continuous drain current I(D)=110 A @ T(C)=25 °C, V(DSS)=55 V, R(DS(on))=8.0 mΩ @ V(GS)=10 V. Electrically connected to the TO-220AB metal tab.
3 S passive Source. Return terminal of the N-channel; integral body diode anode (V(SD)≤1.3 V, I(S)=110 A continuous, 390 A pulsed).

Key specifications

Parameter Value
Type N-channel power MOSFET
Drain-source voltage (VDS) 55 V
On-resistance (RDS(on)) 8 mOhm at VGS = 10 V
Continuous drain current (ID) 110 A
Gate threshold voltage 2 V to 4 V
Power dissipation 200 W
Package TO-220 (G/D/S + tab)
Operating temperature -55 C to 175 C

Ordering variants

Same part, different packaging or reel option.

  • IRF3205PbF

CAD (KiCad official)

  • Symbol: irf3205.kicad_sym
  • Footprint: irf3205.kicad_mod
  • 3D model: TO-220 body from KiCad Package_TO_SOT_THT/TO-220-3_Vertical.

Provenance

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

  • Datasheet: Infineon datasheet (9 pp, sha256 8658a274d7d8f377, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF