The STMicroelectronics BAR46AFILM is a Schottky diode array with two diodes in a common-anode configuration, housed in a SOT-23-3 surface-mount package. Each diode is rated for 100 V reverse voltage and 150 mA average rectified current. The low forward voltage of 450 mV at 10 mA makes it well suited for low-loss OR-ing, flyback clamping, and protection circuits in battery-powered or low-voltage rail designs.
The 100 V reverse voltage rating exceeds the typical small-signal Schottky. The 5 µA leakage at 75 V reverse bias is a standard figure for this voltage class.
Common-anode pair — application note
The common-anode pinout ties both cathodes to separate pins, with the shared anode on the third pin. This is the standard configuration for dual Schottky OR-ing: each cathode connects to a separate power source, and the common anode feeds the load. The SOT-23-3 footprint matches the standard small-signal layout; no board respin needed if swapping from a single Schottky in the same package.
This part is listed as Active on the manufacturer's lifecycle status and ROHS3 compliant. There is no NRND or EOL notice, so it remains a current-production choice for new designs.