AUIRF2903ZS

Single FETs, MOSFETs Overview

The AUIRF2903ZS is an N-channel automotive-grade power MOSFET from Infineon Technologies, utilizing HEXFET technology. It features a maximum drain-source voltage (VDS) of 30 V and a maximum on-resistance (RDS(on)) of 2.4 mΩ. The device supports a continuous drain current (ID) of up to 180 A and operates at junction temperatures up to 175°C. Packaged in D2PAK (TO-263), it is designed for high-efficiency switching applications requiring low conduction losses and robust thermal performance.

Single FETs, MOSFETs Feature Summary

• Automotive qualification compliant with AEC-Q101 standards for reliability
• Advanced process technology enabling ultra-low on-resistance per silicon area
• Designed for fast switching operations with enhanced thermal stability

Single FETs, MOSFETs Applications

• Automotive power distribution systems
• High-side and low-side load switches
• DC-DC converter circuits in vehicle electronics

Single FETs, MOSFETs Procurement Notes

Verify the specific suffix (e.g., ZS vs. ZL) against the official Infineon datasheet to ensure correct packaging and lead-free status. Confirm AEC-Q101 compliance requirements match your design specifications. Check for obsolescence notices or recommended new design alternatives if applicable. Ensure sourcing channels provide authentic components with traceable documentation.

Single FETs, MOSFETs Selection Notes

Select this component when a 30 V N-channel MOSFET with high current capability and automotive reliability is required. The low RDS(on) minimizes conduction losses in power paths. Consider the D2PAK package for surface-mount assembly with adequate heatsinking. Evaluate thermal resistance parameters against your system's heat dissipation capabilities to ensure operation within the 175°C limit.

Single FETs, MOSFETs Part Context

This part belongs to Infineon's HEXFET family of power MOSFETs, specifically tailored for automotive environments. It represents a generation of devices optimized for lower on-resistance and higher efficiency compared to earlier iterations. The 'AU' prefix indicates automotive grade qualification, distinguishing it from standard industrial variants.

Single FETs, MOSFETs Replacement Considerations

Consult Infineon's official replacement guide for direct substitutes. Verify pin compatibility and electrical parameters such as VDS, ID, and RDS(on) before swapping. Ensure any alternative maintains AEC-Q101 certification if automotive use is mandated.