AUIRFN8403TR

Single FETs, MOSFETs Overview

The AUIRFN8403TR is an automotive-grade N-channel Power MOSFET from Infineon Technologies, part of the COOLiRFET family. It features a PQFN-8 (5x6 mm) surface-mount package and complies with AEC-Q101 standards. Key electrical parameters include a drain-source breakdown voltage (Vds) of 40 V, a continuous drain current (Id) of 95 A, and a maximum on-resistance (Rds(on)) of 3.3 mΩ at Vgs = 10 V. The device operates within a junction temperature range of -55°C to +175°C, with a gate-source voltage limit of ±20 V and a total power dissipation of 4.3 W.

Single FETs, MOSFETs Feature Summary

• Automotive qualification compliant with AEC-Q101 standards for reliability in vehicle environments.
• COOLiRFET technology optimized for low on-resistance and high current handling capabilities.
• Compact PQFN-8 footprint designed to minimize PCB area usage.

Single FETs, MOSFETs Applications

• Pump motor control systems
• Body control modules
• Automotive power distribution

Single FETs, MOSFETs Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm datasheet revisions match design requirements. Check for RoHS compliance documentation. Validate packaging integrity upon receipt. Ensure storage conditions meet semiconductor specifications.

Single FETs, MOSFETs Selection Notes

Select this component for applications requiring small form factor and high current density. Consider thermal management needs given the 4.3 W power dissipation rating. Verify gate drive compatibility with the specified threshold voltage. Evaluate system voltage against the 40 V breakdown limit.

Single FETs, MOSFETs Part Context

This part belongs to Infineon's automotive MOSFET portfolio, specifically the HEXFET and COOLiRFET series. It is designed for high-efficiency switching in automotive electronics where space constraints and thermal performance are critical. The PQFN-8 package offers improved thermal characteristics compared to traditional packages.

Single FETs, MOSFETs Replacement Considerations

Check for direct pin-compatible substitutes with similar Rds(on) and Id ratings. Verify that any replacement maintains AEC-Q101 certification. Ensure thermal resistance values are comparable to maintain system reliability.