60 V N-channel in a DirectFET Isometric SB package
The Infineon AUIRF7640S2TR is a 60 V N-channel MOSFET from the HEXFET® family, housed in a DirectFET™ Isometric SB surface-mount package. It delivers a continuous drain current of 5.8 A at 25°C ambient and 21 A when the case is held at 25°C, with a maximum on-resistance of 36 mOhm at a 10 V gate drive.
The DirectFET Isometric SB package is a low-inductance, solderable can that sits directly on the PCB, using the board as the heatsink. The supplier device package is DIRECTFET SB. This is a surface-mount part; the large drain pad on the bottom of the can requires a good thermal via pattern to the inner copper planes to reach the 30 W case-rated power dissipation. The 2.4 W ambient rating is the practical limit without a heatsink or forced airflow.
Gate threshold voltage maximum is 5 V at 25 µA drain current; recommended drive voltage for rated on-resistance is 10 V.