AUIRFZ44Z

Single FETs, MOSFETs Overview

The AUIRFZ44Z is an automotive-grade, single N-channel enhancement mode power MOSFET from the OptiMOS family. It features a maximum drain-source voltage of 55 V and a continuous drain current of 51 A at 25°C. The device offers a maximum on-resistance of 13.9 mΩ at 10 V gate drive and a typical total gate charge of 29 nC. Designed for high reliability, it supports junction temperatures up to 175°C and includes integrated gate resistance for robust switching performance.

Single FETs, MOSFETs Feature Summary

• Automotive qualification compliant with AEC-Q101 standards
• Integrated gate resistance for improved switching stability
• OptiMOS technology providing low conduction losses
• High thermal capability supporting elevated junction temperatures

Single FETs, MOSFETs Applications

• Automotive DC-DC converter circuits
• Motor control applications in vehicles
• Power distribution systems requiring high reliability

Single FETs, MOSFETs Procurement Notes

Verify component authenticity through authorized Infineon channels due to widespread counterfeiting risks. Confirm specific ordering suffixes match exact package and tape-and-reel specifications. Request full traceability documentation including lot codes and material declarations to ensure compliance with automotive quality requirements.

Single FETs, MOSFETs Selection Notes

Select this component for designs requiring verified automotive reliability and low gate charge efficiency. Compare against standard IRFZ44Z variants to confirm necessary insulation and isolation characteristics. Ensure driver capabilities support the specified gate threshold voltage range for optimal switching performance.

Single FETs, MOSFETs Part Context

This part belongs to the IRFZ44 series of power MOSFETs manufactured by International Rectifier, now part of Infineon Technologies. It represents the automotive-qualified variant of the widely used IRFZ44Z, distinguished by stricter manufacturing controls and AEC-Q101 certification for automotive electronics environments.

Single FETs, MOSFETs Replacement Considerations

Direct substitutes include the non-automotive IRFZ44Z for general industrial use or the surface-mount AUIRFZ44ZS. Verify pinout compatibility and thermal resistance differences when transitioning between TO-220 and D2PAK packages.