AUIRFR8403TRLARMA1

Single FETs, MOSFETs Overview

The AUIRFR8403TRLARMA1 is an automotive-grade N-channel enhancement mode MOSFET from Infineon Technologies, belonging to the COOLiRFET series. It features a DPAK (TO-252) surface-mount package with three terminals. Key electrical parameters include a drain-source breakdown voltage of 40 V and a continuous drain current of 100 A at 25°C. The device exhibits a maximum on-resistance of 3.1 mΩ and a gate threshold voltage range of 2.2 V to 3.9 V. It operates within a temperature range of -55°C to +175°C and holds AEC-Q101 qualification.

Single FETs, MOSFETs Feature Summary

• Automotive reliability certified under AEC-Q101 standards for robust performance in vehicle environments.
• Utilizes COOLiRFET technology to achieve low on-resistance and high power efficiency.
• Enhanced thermal stability supporting operation up to 175°C junction temperature.

Single FETs, MOSFETs Applications

• Automotive power distribution systems
• Motor control circuits
• High-side switching applications

Single FETs, MOSFETs Procurement Notes

Verify the specific suffix ARMA1 against official Infineon documentation to confirm exact tape-and-reel specifications and marking details. Confirm current availability status as automotive components may undergo lifecycle changes. Ensure compatibility with existing PCB footprints for the TO-252 package before procurement.

Single FETs, MOSFETs Selection Notes

Select this component for designs requiring 40V N-channel switching with high current capacity. The DPAK package suits applications needing moderate power dissipation without excessive board space. Verify that the 3.1 mΩ on-resistance meets the thermal management requirements for the intended load current.

Single FETs, MOSFETs Part Context

This part belongs to Infineon's COOLiRFET family, designed specifically for automotive electronics. The series emphasizes low conduction losses and ruggedness. The AUI prefix indicates automotive qualification, distinguishing it from standard industrial counterparts.

Single FETs, MOSFETs Replacement Considerations

Check for direct replacements such as AUIRFS8403 or AUIRFN8403 variants if pinout and package compatibility allow. Verify that substitute parts meet the same AEC-Q101 grade and thermal characteristics.