AUIRFR8405

Single FETs, MOSFETs Overview

The AUIRFR8405 is an N-channel enhancement mode power MOSFET from the COOLiRFET series, manufactured by International Rectifier (Infineon). It features a 40V drain-source breakdown voltage and ultra-low on-resistance with typical and maximum values of 1.9mΩ and 2.3mΩ respectively at Vgs=10V. The device supports a continuous drain current of 120A limited by the package and up to 193A silicon-limited. It operates at junction temperatures up to 175°C, dissipates 163W, and utilizes DPAK (TO-252) surface-mount packaging.

Single FETs, MOSFETs Feature Summary

• Specifically designed for automotive applications utilizing advanced processing techniques for low on-resistance per silicon area
• Features fast switching speed and improved repetitive avalanche rating allowed up to Tjmax
• Supports 175°C junction operating temperature for high thermal reliability

Single FETs, MOSFETs Applications

• Automotive motor control applications
• Pump motor control systems
• Body control modules in vehicles

Single FETs, MOSFETs Procurement Notes

Verify the component authenticity through official manufacturer channels or authorized distributors. Confirm that the part matches the specific AUIRFR8405 designation within the COOLiRFET family. Ensure compliance with RoHS standards and lead-free requirements as documented in the datasheet. Check for any specific automotive qualification markings required for your application environment.

Single FETs, MOSFETs Selection Notes

Select this component when designing automotive circuits requiring robust performance under high thermal conditions. The 40V rating suits standard 12V vehicle electrical systems. Consider the DPAK package for its balance of current handling and PCB space efficiency. Evaluate the low gate charge characteristics for driving efficiency in PWM control schemes.

Single FETs, MOSFETs Part Context

This device belongs to the HEXFET and COOLiRFET families from International Rectifier, now part of Infineon Technologies. These series are known for combining high voltage capability with low on-resistance using proprietary trench technology. The AUIRFR8405 represents the automotive-grade variant optimized for reliability in harsh environments.

Single FETs, MOSFETs Replacement Considerations

Consult official replacement lists for equivalent parts within the same voltage and current class. Verify pinout compatibility and thermal resistance specifications before substitution.