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IRFZ46NSTRLPBF

IRFZ46NSTRLPBF Description

The IRFZ46NSTRLPBF from Infineon Technologies is a high-performance N-channel HEXFET® power MOSFET designed for robust switching applications. With a 55V drain-to-source voltage (Vdss) and 53A continuous drain current (Id) at 25°C (case temperature), it delivers efficient power handling in a compact D2PAK (TO-263) surface-mount package. This MOSFET is optimized for low on-resistance (Rds(on) of 16.5mΩ at 10V Vgs) and features a gate charge (Qg) of 72nC, ensuring fast switching and reduced conduction losses. While marked as "Not For New Designs", it remains a reliable choice for legacy systems requiring high-current, medium-voltage operation.

IRFZ46NSTRLPBF Features

• Low Rds(on): 16.5mΩ at 28A, 10V Vgs minimizes power dissipation.
• High Current Capacity: 53A (Tc) rating suits demanding load conditions.
• Optimized Switching: 72nC gate charge (Qg) and 1696pF input capacitance (Ciss) balance speed and efficiency.
• Robust Construction: D2PAK package offers superior thermal performance (107W max power dissipation at Tc).
• Wide Vgs Range: ±20V gate-to-source voltage tolerance enhances design flexibility.
• Compliance: ROHS3 and REACH compliant, with MSL 1 (unlimited) moisture sensitivity.

IRFZ46NSTRLPBF Applications

Ideal for DC-DC converters, motor drives, and power management circuits, this MOSFET excels in:

• Automotive Systems: High-current switching in ECU or LED drivers.
• Industrial Power Supplies: Efficient energy conversion in 48V systems.
• UPS/Inverters: Low-loss switching for battery-backed applications.
• Legacy Electronics: Cost-effective upgrades for existing designs.

Conclusion of IRFZ46NSTRLPBF

The IRFZ46NSTRLPBF combines Infineon’s HEXFET® technology with a proven package to deliver high efficiency, thermal resilience, and reliability in medium-voltage applications. While newer alternatives may exist, its low Rds(on), high current capability, and rugged D2PAK packaging make it a pragmatic choice for engineers maintaining or optimizing legacy power systems.