AUIRFS8409-7P

Single FETs, MOSFETs Overview

Infineon AUIRFS8409-7P is an automotive-grade N-channel HEXFET power MOSFET featuring a D2PAK (TO-263) 7-pin surface-mount package. It provides a maximum drain-source voltage of 40 V and supports continuous drain currents up to 522 A (silicon limited) or 240 A (package limited). The device achieves a typical on-resistance of 0.55 mΩ, with a maximum rating of 0.75 mΩ at 10 V gate drive. It operates within a junction temperature range of -55 °C to +175 °C and includes integrated avalanche energy capabilities.

Single FETs, MOSFETs Feature Summary

• Automotive qualification compliant with AEC-Q101 standards for high reliability in demanding environments
• Integrated avalanche capability allowing operation under unclamped inductive switching conditions
• Low on-resistance design optimized for minimal conduction losses in high-current applications

Single FETs, MOSFETs Applications

• Electric Power Steering (EPS)
• Battery Switch circuits
• Start/Stop Micro Hybrid systems
• Heavy Load Drivers

Single FETs, MOSFETs Procurement Notes

Verify the specific ordering suffix against official Infineon documentation to confirm packaging format. The base part number corresponds to tube packaging, while tape and reel options utilize distinct suffixes. Ensure component authenticity through authorized distribution channels and validate all electrical parameters against the current datasheet prior to implementation.

Single FETs, MOSFETs Selection Notes

Select this component when designing automotive circuits requiring robust N-channel switching with low thermal resistance. The 7-pin D2PAK configuration facilitates efficient heat dissipation compared to standard 3-pin variants. Consider the silicon-limited versus package-limited current ratings based on the specific PCB copper area and thermal management strategy employed in the target application.

Single FETs, MOSFETs Part Context

The AUIRFS8409-7P belongs to the COOLiRFET family, which utilizes advanced planar technology to achieve superior performance metrics. This series is engineered specifically for automotive power management, balancing low on-state resistance with high surge current handling capabilities. The integration of automotive qualification ensures long-term stability and reliability across varying environmental conditions.

Single FETs, MOSFETs Replacement Considerations

AUIRFS8409-7TRL

Single FETs, MOSFETs FAQ

What is the maximum single pulse avalanche energy?

The device supports a thermally limited single pulse avalanche energy of 1485 mJ.

How does the package configuration differ from standard MOSFETs?

It utilizes a D2PAK 7-pin package, providing enhanced thermal performance and current carrying capacity compared to traditional 3-pin configurations.