IRFZ44N N-Channel MOSFET – Pack of 2
High-current N-channel MOSFET for switching motors, LED strips, heaters and solenoids. 55 V, 49 A and only 17.5 mΩ on-resistance, in a TO-220 package that fits a heatsink.
- Part Number
- IRFZ44N
- Type
- N-channel power MOSFET
- Drain-Source Voltage
- 55 V
- Drain Current
- 49 A (T_C = 25 °C)
- On-Resistance
- 17.5 mΩ max (V_GS = 10 V)
- Gate Threshold
- 2–4 V
Specifications
- Manufacturer Part Number
- IRFZ44N
- Part Number
- IRFZ44N
- Type
- N-channel power MOSFET
- Drain-Source Voltage
- 55 V
- Drain Current
- 49 A (T_C = 25 °C)
- On-Resistance
- 17.5 mΩ max (V_GS = 10 V)
- Gate Threshold
- 2–4 V
- Power Dissipation
- 94 W
- Package
- TO-220
- Pinout (front)
- G – D – S
- Pack Quantity
- 2
Electrical characteristics
Absolute maximum ratings
Going above these limits can permanently damage the part. Design with a safety margin and use the typical values below for normal operation.
- Drain-source voltageVDSSMax rating55 V
- Continuous drain current (T_C = 25 °C, V_GS = 10 V)IDMax rating49 A
- Continuous drain current (T_C = 100 °C, V_GS = 10 V)IDMax rating35 A
- Pulsed drain currentIDMMax rating160 A
- Power dissipation (T_C = 25 °C)PDMax rating94 W
- Gate-source voltageVGSMax rating±20 V
- Operating junction temperatureTJMax rating−55 to +175 °C
Typical characteristics
- Static drain-source on-resistanceRDS(on)Condition: VGS = 10 V, ID = 25 AMin—Typ—Max17.5 mΩ
- Gate threshold voltageVGS(th)Condition: VDS = VGS, ID = 250 µAMin2.0 VTyp—Max4.0 V
Downloads
Description
A MOSFET switches heavy DC loads with almost no loss. The IRFZ44N is a favourite for motor controllers, 12 V LED-strip dimmers, e-bike and battery projects.
Features
- N-channel, 55 V drain-source
- 49 A continuous drain current (at 25 °C case, with heatsink)
- RDS(on) 17.5 mΩ maximum at 10 V gate drive
- TO-220 package, tab connected to the drain
Pinout
Front (printed side) towards you, legs down: Gate – Drain – Source.
Important – gate voltage
The IRFZ44N needs about 10 V on the gate to switch fully on. A 5 V or 3.3 V microcontroller pin only turns it partly on, so it heats up. Drive the gate through a transistor or gate driver from 10–12 V, or choose a logic-level MOSFET such as the IRLZ44N. Add a 10 kΩ gate-to-source pull-down and a flyback diode across inductive loads.
Package includes
2 × IRFZ44N MOSFETs
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