IRFZ44N MOSFET N-Channel 55V 49A TO-220

The IRFZ44N MOSFET N-Channel 55V 49A is a high-performance electronic switching component designed for power control, motor driving, switching power supplies, and electronic circuit applications. Featuring a maximum drain-to-source voltage of 55V and a continuous drain current rating of up to 49A under specified thermal conditions, this MOSFET is suitable for a wide range of power electronics and DIY projects.

Housed in a standard TO-220 package, the IRFZ44N TO-220 MOSFET is easy to integrate into through-hole circuit designs, prototyping boards, and custom electronic assemblies. Its low on-state resistance helps reduce conduction losses when operated under the specified gate-drive and thermal conditions.

The IRFZ44N 55V 49A Transistor is commonly used in DC motor control circuits, LED switching systems, DC-DC converters, battery-powered equipment, and power management applications. It is suitable for electronics enthusiasts, engineering students, repair technicians, and embedded systems developers.

Important: The IRFZ44N is not a true logic-level MOSFET. For low-resistance operation, it generally requires a gate-source voltage of approximately 10V. A 3.3V or 5V microcontroller output alone may not fully turn it on.

Features:

• N-Channel Power MOSFET: Designed for electronic switching and power control applications.
• 55V Drain-to-Source Voltage: Suitable for compatible low-voltage power circuits.
• 49A Maximum Continuous Drain Current: Rated under specified case-temperature and thermal conditions.
• Low On-State Resistance: Maximum specified (R_{DS(on)}) of approximately 17.5 mΩ at the stated test conditions.
• TO-220 Package: Convenient through-hole mounting for electronic circuits and prototyping.
• Fast Switching Capability: Suitable for compatible switching and power-control circuits.
• High Power Dissipation Capability: Supports demanding applications with appropriate heatsinking and thermal design.
• Wide Application Range: Useful for motor control, power conversion, LED switching, and general electronics projects.
• Gate-Controlled Operation: Enables switching through a suitable gate-drive circuit.

Specifications:

• Product Type: N-Channel Power MOSFET
• Part Number: IRFZ44N
• MOSFET Type: N-Channel Enhancement Mode
• Drain-to-Source Voltage (VDS): 55V maximum
• Continuous Drain Current (ID): 49A maximum under specified thermal conditions
• Static Drain-to-Source On-Resistance (RDS(on)): 17.5 mΩ maximum at specified test conditions
• Gate-to-Source Voltage (VGS): ±20V maximum
• Gate Threshold Voltage (VGS(th)): Approximately 2V–4V
• Maximum Power Dissipation: Up to 94W with the case maintained at the specified temperature
• Operating Junction Temperature: -55°C to +175°C
• Package Type: TO-220
• Mounting Type: Through-hole

Applications:

• DC motor speed control circuits
• Switching power supplies and DC-DC converters
• Battery charging and power management circuits
• LED lighting and switching applications
• Inverter and compatible low-voltage power circuits
• Robotics and automation projects
• Electronic load switching
• DIY electronics and engineering experiments
• Replacement and repair of compatible electronic circuits

Package Includes:

• 1 × IRFZ44N MOSFET N-Channel 55V 49A TO-220