The 1N5819 with Schottky Barrier Diodes (SBD) is a DO-41 RoHS (Restriction of Hazardous Substances) manufactured by Semtech. It is specifically designed to meet the needs of low voltage, low power electronics and offers excellent rectification performance. It features a low forward voltage drop, high switching speed, and ultra low reverse leakage current. It has a maximum reverse voltage rating of 40V, a forward voltage drop of 0.41V @ 1A, a reverse leakage current of 100nA @ 25°C, and a surge current capability of up to 3A. It operates at up to 150°C junction temperature with full reverse voltage and full forward current, making it quite reliable for operation in demanding conditions. This device is also RoHS compliant, making it an ideal choice for both consumer and commercial applications.