BUY SS0540 https://www.utsource.net/itm/p/11279312.html
SS0540 SBD Schottky Barrier Diodes 40v 500mA/0.5A 420mV/0.42V SOD-123/1206 marking B4 fast switch
Description: SS0540 is a surface mount Schottky diode with a SOD-123/1206 package. Features: * Low forward voltage drop * High current capability * High surge current capability * High reliability Applications: * Switching power supplies * DC/DC converters * Battery chargers * Automotive electronics * Telecommunications (For reference only)