The B5819WS is a single 1A, 40V, 900mV @ 3A, SOD-323 Schottky Barrier Diode (SBD) manufactured by Doeshare. It is RoHS compliant and has a maximum current of 1mA @ 40V. This diode can be used in circuits for protection, switching, voltage regulation, or rectifying applications. It is designed to minimize power dissipation, while providing excellent average forward current characteristics at high operating temperatures. It is widely used in a variety of industrial and consumer electronic applications.