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The IRF3205 is a high current N-Channel MOSFET that can switch currents upto 110A and 55V.

Pin Configuration

Pin Number

Pin Name




Controls the biasing of the MOSFET



Current flows in through Drain



Current flows out through Source


  • N-Channel Power MOSFET
  • Continuous Drain Current (ID) is 110A when VGS is 10V
  • Minimum Gate threshold voltage 2V
  • Drain to Source Breakdown Voltage: 55V
  • Low On-Resistance of 8.0mΩ
  • Gate-Source Voltage is (VGS) is ±20V
  • Rise time is 101ns
  • It is commonly used with Power Switching circuits
  • Available in To-220 package

Note: Complete Technical Details can be found at the IRF3205 datasheet given at the end of this page.


Alternatives for IRF3205

IRF1405, IRF1407, IRF3305, IRFZ44N, IRFB3077, IRFB4110


Other N-channel MOSFETS

IRF540N, 2N7000 , FDV301N


IRF3205 MOSFET Overview

The IRF3205 is a high current N-Channel MOSFET that can switch currents upto 110A and 55V. The specialty of the MOSFET is that it has very low on resistance of only 8.0mΩ making it suitable for switching circuits like Inverters, motor speed control, DC-DC converter etc. It is also one of the easily available and cheap MOSFET with a low on-resistance.

So if you looking for a MOSFET to be used in your switching circuit that operates below 55V and less than 110A you can consider using the IRF3205. Note that the IRF3205 has high threshold voltage and hence not ideal for on/off control with embedded controllers. You can try the IRF540N for that purpose.



  • Switching Applications
  • Boost converters
  • Choppers
  • Solar inverters
  • Speed control


2D model of the component

If you are designing a PCB or Perf board with this component then the following picture from the IRF3205 Datasheet will be useful to know its package type and dimensions.

IRF3205 MOSFET Dimensions


Component Datasheet

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