AUIRF4905

Single FETs, MOSFETs Overview

The AUIRF4905 is a P-channel HEXFET power MOSFET designed for automotive applications. It features an advanced planar technology with a maximum drain-to-source voltage of -55 V and a continuous drain current of -74 A at 25°C case temperature. The device exhibits a maximum on-resistance of 0.02 Ω at VGS = -10 V and ID = -38 A. It operates within a junction temperature range of -55°C to +175°C and supports repetitive avalanche energy up to Tjmax.

Single FETs, MOSFETs Feature Summary

• Automotive qualified according to AEC-Q101 standards
• Advanced planar technology for low on-resistance per silicon area
• Fully avalanche rated with repetitive avalanche allowed up to maximum junction temperature
• Fast switching capability combined with ruggedized device design

Single FETs, MOSFETs Applications

• Automotive power distribution systems
• High-side load switches
• Motor control circuits
• General purpose power switching in industrial environments

Single FETs, MOSFETs Procurement Notes

Verify the specific ordering suffix matches the required package type, as standard packaging may vary. Confirm that the component meets the necessary AEC-Q101 qualification level for your target application environment. Ensure thermal management designs account for the specified linear derating factor and junction-to-case thermal resistance values under actual operating conditions.

Single FETs, MOSFETs Selection Notes

Select this component when high current handling and robust avalanche performance are required in automotive or industrial settings. Consider the TO-220 package for through-hole mounting solutions where higher power dissipation capabilities are needed compared to surface-mount alternatives. Evaluate gate charge requirements against driver capabilities to ensure optimal switching speeds.

Single FETs, MOSFETs Part Context

This part belongs to Infineon's HEXFET family of power MOSFETs, known for utilizing cellular design techniques to achieve superior performance metrics. The AUIRF4905 specifically targets the automotive sector, offering enhanced reliability and durability compared to standard industrial grade counterparts while maintaining compatibility with common drive voltages.

Single FETs, MOSFETs Replacement Considerations

Direct replacements include IRF4905PBF for non-automotive applications. For surface mount needs, consider AUIRF4905S (D2PAK) or AUIRF4905L (TO-262). Verify pinout compatibility and thermal characteristics before substituting.

Single FETs, MOSFETs FAQ

Is the AUIRF4905 suitable for high-voltage automotive applications?

Yes, it is rated for a maximum drain-to-source voltage of -55 V and is specifically qualified for automotive use under AEC-Q101 standards.

What is the maximum repetitive avalanche energy supported by this device?

The device supports a single pulse avalanche energy of 930 mJ starting at 25°C and allows for repetitive avalanche operation up to the maximum junction temperature.