View stps1l40 datasheet:

STPS1L40A/U ® LOW DROP POWER SCHOTTKY RECTIFIER MAIN PRODUCT CHARACTERISTICS IF(AV) 1A VRRM 40 V Tj (max) 150 °C VF (max) 0.42 V FEATURES AND BENEFITS VERY SMALL CONDUCTION LOSSES SMA SMB NEGLIGIBLE SWITCHING LOSSES (JEDEC DO-214AC) (JEDEC DO-214AA) LOW FORWARD VOLTAGE DROP STPS1L40A STPS1L40U SURFACE MOUNT MINIATURE PACKAGE AVALANCHE CAPABILITY SPECIFIED DESCRIPTION Single chip Schottky rectifiers suited to Switched Mode Power Supplies and high frequency DC to DC converters. Packaged in SMA and SMB, this device is especially intended for surface mounting and used in low voltage, high frequency inverters, free wheeling and polarity protection applications. ABSOLUTE RATINGS (limiting values) Symbol Parameter Value Unit VRRM Repetitive peak reverse voltage