AUIRFS4115

Single FETs, MOSFETs Overview

The AUIRFS4115 is an automotive-grade, single N-channel enhancement mode MOSFET manufactured by Infineon Technologies. It utilizes silicon technology and is housed in a D2PAK-3 (TO-263-3) surface-mount package. The device features a drain-source breakdown voltage of 150 V and supports a continuous drain current of 99 A. Its maximum on-resistance is 12.1 mΩ at a gate-source voltage of 10 V. The component operates within a temperature range of -55 °C to +175 °C and has a power dissipation rating of 375 W. It meets AEC-Q101 qualification standards for automotive applications.

Single FETs, MOSFETs Feature Summary

• Automotive qualification compliant with AEC-Q101 standards
• High thermal stability supporting operation up to 175 °C junction temperature
• Low on-resistance design for efficient power switching
• Robust packaging suitable for high-power surface-mount applications

Single FETs, MOSFETs Applications

• Automotive power distribution systems
• Motor control circuits in vehicles
• High-current load switching applications
• DC-DC converter stages

Single FETs, MOSFETs Procurement Notes

Verify the specific suffix of the part number, such as TRL or 7P, as these indicate distinct packaging formats like reel or tube. Confirm the exact pin configuration and lead availability, as some variants may be obsolete or end-of-life. Ensure the selected version matches the required automotive grade and RoHS compliance status before finalizing procurement orders.

Single FETs, MOSFETs Selection Notes

Select this component when a 150 V rated, high-current N-channel MOSFET is required for automotive environments. The choice depends on the need for low conduction losses indicated by the milliohm-level on-resistance. Consider the thermal management requirements given the 375 W dissipation rating and the physical constraints of the TO-263-3 package for the specific PCB layout.

Single FETs, MOSFETs Part Context

This part belongs to Infineon's portfolio of automotive power MOSFETs designed for reliability in harsh environments. It is part of the broader StrongIRFET or OptiMOS families, which emphasize low resistance and robust performance. The AUI prefix denotes its qualification for automotive use, distinguishing it from standard industrial counterparts.

Single FETs, MOSFETs Replacement Considerations

Check for direct substitutes like the IRFS4115 series if automotive qualification is not strictly required. Verify pin compatibility and electrical parameters against alternatives such as the AUIRFS4115-7P, noting differences in packaging and specific parameter tolerances.