The WSB5549N-3/TR is an SBD (Schottky Barrier Diode) manufactured by Will Semiconductor. It is a 100V Dual Common Cathode device with 1.2V forward voltage and 150mA forward current at 150mA reverse current. It comes in a DFN1006-3L package, with RoHS functionality for extra safety. The WSB5549N-3/TR is used in a variety of applications, such as power converters, transient suppressors, power switching circuits, and voltage multipliers.