BUY S1G/M4/D4/A4 https://www.utsource.net/itm/p/9466945.html

S1G/M4/D4/A4 is a ZHIDE SOD-123FL diode. It is a fast switching diode with a low forward voltage drop. It has a maximum forward current of 1.0A and a maximum reverse voltage of 100V. It is suitable for use in high frequency rectification, switching applications, and general purpose rectification. It can also be used in automotive applications. (For reference only)