AUIRFR3806

Single FETs, MOSFETs Overview

The AUIRFR3806 is an automotive-grade N-channel HEXFET power MOSFET featuring a D-Pak (TO-252AA) surface-mount package. It provides a drain-source breakdown voltage of 60V and supports continuous drain currents of 43A at 25°C case temperature and 31A at 100°C. The device exhibits a maximum on-resistance of 15.8mΩ at VGS=10V. Key electrical parameters include a gate threshold voltage range of 2.0V to 4.0V, total gate charge of 30nC, and a maximum power dissipation of 71W. It operates within a junction temperature range of -55°C to +175°C.

Single FETs, MOSFETs Feature Summary

• Automotive qualification compliant with AEC-Q101 standards for reliability in vehicle environments.
• Advanced process technology enabling ultra-low on-resistance per silicon area for high efficiency.
• Enhanced ruggedness including improved dynamic dv/dt rating and repetitive avalanche capability up to Tjmax.
• Fast switching characteristics combined with a 175°C operating junction temperature.

Single FETs, MOSFETs Applications

• Automotive power distribution systems
• High-efficiency synchronous rectification in switch-mode power supplies
• Uninterruptible power supply circuits
• Hard-switched and high-frequency power conversion applications

Single FETs, MOSFETs Procurement Notes

Verify the specific ordering suffix required for your manufacturing line. The standard tube form is designated as AUIRFR3806, while the tape and reel option is AUIRFR3806TRL. Confirm that the selected packaging aligns with your automated assembly equipment specifications before finalizing procurement orders.

Single FETs, MOSFETs Selection Notes

Select this component when automotive reliability is mandatory alongside low conduction losses. The 60V rating suits 12V or 24V automotive networks. Ensure thermal management strategies account for the 71W dissipation limit and derating factors. Verify that gate drive voltages remain within the ±20V absolute maximum ratings to prevent insulation breakdown.

Single FETs, MOSFETs Part Context

This part belongs to Infineon's HEXFET family, specifically engineered for robust performance in demanding environments. The 'AU' prefix indicates its qualification for automotive applications under strict industry standards. It serves as a specialized variant of the IRFR3806 series, offering enhanced durability and compliance for vehicle electronics compared to standard industrial grades.

Single FETs, MOSFETs Replacement Considerations

The base number IRFR3806 shares identical electrical specifications but lacks automotive qualification. Substituting requires verifying if the application mandates AEC-Q101 compliance. Other HEXFET devices with similar 60V ratings may fit electrically but must be evaluated for package compatibility and thermal resistance differences.

Single FETs, MOSFETs FAQ

Is the AUIRFR3806 qualified for automotive use?

Yes, the datasheet confirms it passed Automotive qualification per AEC-Q101 standards.

What is the maximum repetitive avalanche energy allowed?

The device allows repetitive avalanche energy up to 7.1 mJ, limited by the maximum junction temperature.

Does the device support operation at high temperatures?

Yes, it is designed for a maximum operating junction temperature of +175°C.