STPS1L40-Y is a ST company's automotive low drop power Schottky rectifier, which has very small conduction losses, negligible switching losses, low forward voltage drop, surface mount miniature packages, avalanche capability specified, AEC-Q101 qualified, ECOPACK®2 compliant components. This device is packaged in SMA and SMB, it is especially intended for surface mounting and used in low voltage, high frequency inverters, free wheeling and polarity protection in automotive applications.