The B5819WS with 40V 900mV@3A 1A SOD-323 Schottky Barrier Diode (SBD) ROHS is a diode manufactured by Yangjie, which is specially designed for use in a variety of electronic applications. It can be used for modern circuit design applications, such as high speed switching, as well as traditionally used for rectifiers in low power half-wave and full-wave rectifier circuits. It has a maximum reverse voltage of 40V and can withstand peak forward current of up to 3A. It is made up of a Schottky barrier, a metal alloy that reduces the reverse leakage current of the diode. For protection, the diode is also RoHS compliant, meaning it meets strict environmental standards to ensure no dangerous substances are used.