AUIRFZ44NSTRL

Single FETs, MOSFETs Overview

The AUIRFZ44NSTRL is an automotive-grade N-channel HEXFET power MOSFET in a D2-Pak (TO-263AB) tape and reel package. It features a maximum drain-source voltage of 55V, a continuous drain current of 49A at 25°C case temperature, and a maximum on-resistance of 17.5mΩ at VGS=10V. The device supports a junction temperature range from -55°C to +175°C, with a maximum power dissipation of 94W at the case. It includes fully avalanche-rated capabilities and fast switching characteristics.

Single FETs, MOSFETs Feature Summary

• Automotive qualified per AEC-Q101 standards
• Advanced planar technology for low on-resistance
• Fast switching speed with dynamic dV/dT capability
• Fully avalanche rated up to Tjmax

Single FETs, MOSFETs Applications

• Automotive power management systems
• High-efficiency motor control applications
• General purpose power switching circuits

Single FETs, MOSFETs Procurement Notes

Verify the specific ordering suffix 'TRL' confirms the tape and reel packaging format rather than tube packaging. Confirm the component meets the required AEC-Q101 qualification level for your target automotive application. Ensure thermal design accounts for the specified junction-to-case resistance values under board-mounted conditions.

Single FETs, MOSFETs Selection Notes

Select this component when automotive reliability and high current handling are required within a 55V system. The D2-Pak package offers a balance between thermal performance and surface mount convenience. Consider the 17.5mΩ on-resistance for conduction loss calculations and verify gate drive requirements align with the 10V threshold specifications.

Single FETs, MOSFETs Part Context

This part belongs to Infineon's HEXFET family of power MOSFETs, specifically designed for robust performance in demanding environments. The 'AU' prefix indicates automotive grade qualification, while the 'NS' denotes the D2-Pak surface mount package variant. It represents a specialized version of the standard IRFZ44N series adapted for automotive supply chain requirements.

Single FETs, MOSFETs Replacement Considerations

Direct replacements include the non-automotive IRFZ44NSTRLPBF for industrial use or the tube-packaged AUIRFZ44NS if reel format is not critical. Verify pinout compatibility and ensure thermal resistance parameters match the existing heatsink design before substitution.