AUIRFR4104

Single FETs, MOSFETs Overview

The AUIRFR4104 is an automotive-grade N-channel enhancement mode power MOSFET from the HEXFET family, manufactured by International Rectifier (Infineon). It features a maximum drain-source voltage of 40 V and a continuous drain current of 119 A at 25°C. The device utilizes DPAK (TO-252) surface-mount packaging with a typical on-resistance of 5.5 mΩ at 10 V gate drive. Key electrical parameters include a total gate charge of 59 nC and a junction-to-case thermal resistance of 1.05 K/W. It supports a maximum junction temperature of 175°C and operates within a -55°C to 175°C range.

Single FETs, MOSFETs Feature Summary

• Automotive qualification compliant for high-reliability applications
• Advanced HEXFET process technology for ultra-low on-resistance
• Capable of repetitive avalanche energy stress up to Tjmax
• Fast switching characteristics optimized for efficiency

Single FETs, MOSFETs Applications

• Automotive DC-DC converters
• Motor control circuits
• High-side and low-side switching loads

Single FETs, MOSFETs Procurement Notes

Verify the specific suffix against the manufacturer's official datasheet to confirm package type and tape-and-reel specifications. Ensure the component meets required automotive reliability standards such as AEC-Q101 before integration into production designs.

Single FETs, MOSFETs Selection Notes

Select this component when designing systems requiring robust automotive-grade performance with high current handling capabilities. The 40V rating suits low-voltage automotive networks, while the 175°C junction capability allows operation in thermally constrained environments without derating.

Single FETs, MOSFETs Part Context

This part belongs to the IRFR4104 series, representing the automotive-qualified variant of the standard HEXFET power MOSFET line. It shares core electrical characteristics with commercial counterparts but undergoes stricter manufacturing controls to ensure long-term reliability in vehicle electronics.

Single FETs, MOSFETs Replacement Considerations

Direct replacements must match the 40V/119A rating and TO-252 package. Verify that substitute parts also hold automotive certification if the application requires it. Check pinout compatibility and thermal resistance values.