AUIRFS8403TRR

Single FETs, MOSFETs Overview

The AUIRFS8403TRR is an automotive-grade N-channel enhancement mode MOSFET from the COOLIRFET family, manufactured by Infineon Technologies (formerly International Rectifier). It features a DPAK-3 (TO-252-3) surface-mount package. Key electrical parameters include a drain-source breakdown voltage of 40 V and a continuous drain current of 123 A. The device exhibits a typical on-resistance of 2.6 mΩ and a gate charge of 62 nC. It supports a maximum power dissipation of 99 W and operates within a junction temperature range of -55°C to +175°C. The component holds AEC-Q101 qualification for automotive reliability.

Single FETs, MOSFETs Feature Summary

• Utilizes advanced silicon processing technology to achieve extremely low on-resistance per silicon area.
• Designed specifically for demanding automotive applications with high reliability standards.
• Capable of fast switching speeds and improved repetitive avalanche ratings up to the maximum junction temperature.

Single FETs, MOSFETs Applications

• Automotive power management systems
• High-current DC-DC converter circuits
• Motor control applications in vehicles

Single FETs, MOSFETs Procurement Notes

Verify the manufacturer designation carefully, as International Rectifier was acquired by Infineon Technologies. Confirm that the specific part number suffix matches the required reel or cut-tape packaging configuration. Ensure the component meets the necessary AEC-Q101 automotive qualification requirements for your target application environment before finalizing procurement.

Single FETs, MOSFETs Selection Notes

Select this component when a single N-channel MOSFET with a 40V rating and high current handling capability is required in a compact DPAK package. Consider the 2.6 mΩ on-resistance for efficiency calculations and verify that the thermal management solution can handle the specified 99 W power dissipation at the expected operating ambient temperatures.

Single FETs, MOSFETs Part Context

This device belongs to the COOLIRFET series, which integrates advanced process technologies to minimize conduction losses. The 'AU' prefix indicates its qualification for automotive environments, ensuring robustness against vibration and extreme temperature variations common in vehicle electronics. It serves as a discrete power switch solution within broader semiconductor portfolios.

Single FETs, MOSFETs Replacement Considerations

Direct replacements may include other automotive-grade 40V N-channel MOSFETs in TO-252 packages with comparable on-resistance and current ratings. Verify pinout compatibility and thermal characteristics when substituting with parts from different manufacturers or alternative product lines within the same family.