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IRFZ44VZSPBF

IRFZ44VZSPBF Description

The IRFZ44VZSPBF from Infineon Technologies is a N-channel HEXFET® MOSFET designed for high-efficiency power switching applications. With a 60V drain-to-source voltage (Vdss) and 57A continuous drain current (Id), this surface-mount device delivers robust performance in demanding environments. Packaged in a D2PAK (TO-263), it offers excellent thermal dissipation, supporting a maximum power dissipation of 92W (Tc). While marked as "Not For New Designs", it remains a reliable choice for legacy systems requiring high-current handling and low on-resistance (12mOhm @ 34A, 10V).

IRFZ44VZSPBF Features

• Low Rds(On): 12mOhm at 10V gate drive, minimizing conduction losses.
• High Current Capability: 57A continuous current at 25°C (case temperature).
• Fast Switching: Optimized gate charge (65nC @ 10V) and input capacitance (1690pF @ 25V) for efficient high-frequency operation.
• Robust Design: ±20V gate-source voltage (Vgs) tolerance and REACH/ROHS3 compliance.
• Thermal Efficiency: D2PAK package ensures effective heat dissipation for sustained performance.
• Wide Drive Voltage: 10V drive voltage for full enhancement, compatible with standard logic-level drivers.

IRFZ44VZSPBF Applications

Ideal for:

• DC-DC Converters: Leveraging low Rds(On) for reduced power loss in step-down/step-up circuits.
• Motor Control: High-current handling suits brushed/brushless motor drivers in industrial automation.
• Power Supplies: Efficient switching in SMPS (switched-mode power supplies) and UPS systems.
• Automotive Systems: Auxiliary power modules (non-safety-critical) due to its rugged construction.
• Load Switching: Battery management systems (BMS) and high-side/low-side switches.

Conclusion of IRFZ44VZSPBF

The IRFZ44VZSPBF is a proven HEXFET® MOSFET offering a balance of low resistance, high current capacity, and thermal resilience. While phased out for new designs, its D2PAK packaging and 60V/57A ratings make it a pragmatic choice for upgrades or repairs in power electronics. Engineers value its Infineon reliability for applications demanding durability, such as industrial motor drives and compact power converters. For legacy systems, it remains a cost-effective alternative to newer MOSFETs with comparable specs.