AUIRF7739L2TR

Single FETs, MOSFETs Overview

The AUIRF7739L2TR is an automotive-grade N-channel enhancement mode power MOSFET manufactured by Infineon Technologies. It utilizes DirectFET ISOMETRIC L8 packaging to achieve a low profile of 0.7 mm and a footprint comparable to a DPAK (TO-252AA). The device features a drain-to-source voltage rating of 40 V, a typical on-resistance of 700 µΩ, and a continuous drain current capability of up to 270 A at 25°C case temperature. Key electrical parameters include a total gate charge of 220 nC, a maximum junction operating temperature of 175°C, and compliance with the AEC-Q101 standard for automotive applications.

Single FETs, MOSFETs Feature Summary

• Automotive HEXFET silicon technology combined with DirectFET packaging for high efficiency and robustness
• Dual-sided cooling capability within the DirectFET package to maximize thermal transfer
• Low parasitic parameters and exceptionally small footprint for high power density designs
• Repetitive avalanche capability designed for reliability in heavy load environments

Single FETs, MOSFETs Applications

• Automotive motor drive systems
• High frequency DC-DC converters
• Heavy load applications on ICE platforms
• Applications on HEV and EV platforms

Single FETs, MOSFETs Procurement Notes

Verify that the specific orderable part number matches the required suffix configuration. Confirm that the component meets the AEC-Q101 qualification standards required for your specific automotive application environment. Ensure that PCB assembly processes adhere to the manufacturer's application note AN-1035 regarding stencil design and substrate specifications for proper soldering.

Single FETs, MOSFETs Selection Notes

Select this component when system requirements demand a balance between low on-state resistance and a compact surface-mount form factor. The 40 V rating and 270 A current capability make it suitable for low-voltage, high-current switching tasks. Consider the dual-sided cooling potential if thermal management constraints require heat dissipation from both the top and bottom of the package.

Single FETs, MOSFETs Part Context

This component belongs to the Automotive DirectFET Power MOSFET family produced by Infineon Technologies. It integrates advanced HEXFET silicon technology with the DirectFET ISOMETRIC L8 package platform. This series is engineered specifically for automotive power systems where space constraints and thermal performance are critical factors in system design.

Single FETs, MOSFETs Replacement Considerations

The base part number AUIRF7739L2 serves as the non-tape-and-reel variant of this component.