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Original Irf3205 n Channel Power Mosfet



The IRF3205 MOSFET from International Rectifier is 100V single N channel HEXFET power MOSFET in the TO-220AB package. This MOSFET features extremely low on-resistance per silicon area, dynamic dv/dt rating, rugged, fast switching and fully avalanche rated as a result, power MOSFET is well known to provide extremely efficiency and reliability which can be used in a wide variety of applications.

IRF3205 Pinout, Equivalent, Uses, Features and Other Details

Note: Image may vary from actual product in terms of Manufacturer/Brand name according to the availability. 


  1. Gate to source voltage is ±20V
  2. On-Resistance Rds(on) of 8mohm at Vgs of 10V
  3. Power dissipation (Pd) of 130W at 25°C
  4. Continuous drain current (Id) of 110A at Vgs 10V and 25°C
  5. Operating junction temperature range from -55°C to 175°C
  6. Applications: Power Management, Industrial, Portable Devices, Consumer Electronics.

Package Includes:

1 x IRF3205 MOSFET (Pack Of 3)



Features / Technical Specifications:

  • Package Type: TO-220
  • Transistor Type: N Channel
  • Max Voltage Applied From Drain to Source: 55V
  • Max Gate to Source Voltage Should Be: ±20V
  • Max Continues Drain Current is : 110A
  • Max Pulsed Drain Current is: 390A
  • Max Power Dissipation is: 200W
  • Minimum Voltage Required to Conduct: 2V to 4V
  • Max Storage & Operating temperature Should Be: -55 to +170 Centigrade


Replacement and Equivalent:

Here are some nearest possible replacements and equivalents of IRF3205:

IRFB3206, IRFB3256, IRFB3307, IRFB3307, IRFB7540


IRF3205 MOSFET Explained / Description:

IRF3205 is a MOSFET transistor capable of driving the load of upto 110A with max voltage of 55V. It is an N channel transistor available in TO-220 package. This transistor can be used for both switching and amplification purposes. It is a high speed switching transistor hence can be used in applications which require high speed switching of load from one input source to another and the minimum voltage require for saturation is 2V to 4V. It is also capable to drive a load of upto 390A in pulse mode. Moreover when used as an amplifier it is capable to deliver upto 200 Watts due to which it is also an ideal transistor to use in high power audio amplifiers.



Where We Can Use it & How to Use:

IRF3205 can be used in many applications which require high speed load switching like in UPS, Battery Backup systems etc. Other than that it can also be used in many different types of power supply applications. It can also be used to control high current loads with embedded systems. It can also be used to build high power audio amplifier circuits.



Verity of Battery Chargers and Battery Management Systems

Fast Switching Applications

Solar Related Applications

Uninterruptible Power Supplies

Motor Drivers


How to Safely Long Run in a Circuit:

To get good long term performance from a component we always suggest using it atleat 20% below from its maximum ratings. Same goes with IRF3205 transistor. The max load voltage is 55V to get good performance do not exceed the load voltage from 44V DC. The maximum continuous drain current is 110A therefore do not drive load of more than 88A. Use a proper heatsink with the transistor and always store or use this device in between temperature from -55 centigrade to +175 centigrade.



To Download the datasheet just copy and paste the below link in your browser.


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