AUIRF3808

Single FETs, MOSFETs Overview

The AUIRF3808 is an automotive-grade N-channel HEXFET power MOSFET manufactured by International Rectifier. It features a 75V drain-source voltage rating and supports a continuous drain current of 140A at case temperature. The device exhibits a maximum on-resistance of 7 milliohms at 10V gate drive. Key electrical parameters include a gate charge of 220nC and an input capacitance of 5310pF. It operates within a junction temperature range of -55°C to 175°C and is housed in a TO-220AB through-hole package.

Single FETs, MOSFETs Feature Summary

• Automotive qualification compliant with AEC-Q101 standards for high reliability.
• Advanced planar technology designed for low dynamic on-resistance.
• Capable of fast switching operations suitable for high-frequency applications.
• Fully avalanche rated allowing repetitive avalanche energy up to maximum junction temperature.

Single FETs, MOSFETs Applications

• Automotive power distribution systems
• Motor control circuits
• High-reliability DC-DC converter stages

Single FETs, MOSFETs Procurement Notes

Verify the specific datasheet revision and manufacturer documentation to confirm compliance with current automotive quality standards. Ensure that the TO-220AB package dimensions match the target PCB footprint requirements. Cross-reference the part number against official International Rectifier or Infineon catalogs to validate authenticity and avoid counterfeit components during sourcing.

Single FETs, MOSFETs Selection Notes

Select this component when designing circuits requiring robust automotive-grade performance with moderate voltage ratings. The 75V specification suits low-voltage automotive networks. Evaluate thermal management strategies carefully, as the 140A current rating depends on case temperature conditions. Consider the TO-220AB package constraints for heat dissipation compared to surface-mount alternatives.

Single FETs, MOSFETs Part Context

This device belongs to the HEXFET family of power MOSFETs from International Rectifier, now part of Infineon Technologies. The 'AU' prefix indicates automotive qualification. It represents a legacy product line optimized for ruggedness and efficiency in demanding environments, distinct from newer ultra-low voltage or high-density surface mount variants.

Single FETs, MOSFETs Replacement Considerations

Consult official manufacturer substitution guides for verified equivalents. Generic cross-references may not preserve the specific automotive qualification status or exact thermal characteristics required for critical applications.