IRFZ44 N-Channel MOSFET Transistor

The IRFZ44 is a power N-channel MOSFET where the applied gate voltage directly controls conductivity, making it ideal for switching or amplifying high-current loads with low in-circuit resistance. This efficiency makes it a popular choice wherever a project needs to drive a high current load without wasting power as heat.

With a low gate threshold voltage of around 4V, the IRFZ44 can be triggered from a 5V development board, though at least 10V at the gate is recommended to drive it fully into saturation for maximum efficiency. Its continuous drain current rating of 49A and pulsed peak of 160A give it substantial headroom for demanding switching tasks.

• Device type – N-channel power MOSFET
• Continuous drain current (ID) – 49A at 25°C
• Pulsed drain current (ID-peak) – 160A
• Gate threshold voltage (VGS-th) – 2V minimum, 4V maximum
• Gate-Source voltage (VGS) – ±20V max
• Drain-Source voltage (VDS) – 55V max
• Package – TO-220

Used for switching high-power devices, motor speed control and LED dimmers or flashers, the IRFZ44 delivers strong current handling in a familiar TO-220 footprint. The IRFZ44 N-Channel MOSFET Transistor is a workhorse component for power-switching applications in DIY and professional electronics alike.