AUIRFU8403

Single FETs, MOSFETs Overview

The AUIRFU8403 is an automotive-grade N-channel enhancement mode Power MOSFET from the HEXFET family, manufactured by International Rectifier. It features a PQFN-8 (5x6) surface-mount package and supports a drain-source breakdown voltage of 40 V with a continuous drain current of 95 A. The device exhibits a maximum on-resistance of 3.3 mΩ at 10 V gate drive and operates within a junction temperature range of -55°C to +175°C.

Single FETs, MOSFETs Feature Summary

• Automotive qualification compliant for high-reliability applications
• Advanced process technology enabling ultra-low on-resistance per silicon area
• Ruggedized design supporting fast switching speeds and repetitive avalanche energy ratings

Single FETs, MOSFETs Applications

• Automotive power distribution systems
• High-side and low-side load switch circuits
• DC motor control modules

Single FETs, MOSFETs Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific part marking matches the official datasheet specifications. Ensure storage conditions comply with moisture sensitivity level requirements prior to soldering to maintain device integrity.

Single FETs, MOSFETs Selection Notes

Select this component when designing for automotive environments requiring robust thermal performance up to 175°C. The 40V rating suits 12V nominal systems, while the low Rds(on) minimizes conduction losses in high-current paths. Evaluate PCB copper area for adequate heat dissipation given the small PQFN footprint.

Single FETs, MOSFETs Part Context

This device belongs to the HEXFET Power MOSFET series, which utilizes specialized processing techniques to optimize the trade-off between on-resistance and switching speed. The 'AU' prefix indicates automotive grade qualification, ensuring suitability for demanding vehicle electronics compared to standard commercial variants.

Single FETs, MOSFETs Replacement Considerations

Cross-reference with other automotive-grade 40V N-channel MOSFETs in the PQFN-8 package. Verify pinout compatibility and ensure equivalent thermal resistance characteristics before substituting.