Found 5 alternatives for FFSM0665B by onsemi. Diodes Rectifiers Single — 4-PowerTSFN.
DIODE SCHOTTKY 650V 12A VSON-4
SILICON CARBIDE DIODE 650V 10A P
SILICON CARBIDE DIODE 650V 8A PQ
DIODE SCHOTTKY 650V 4A VSON-4
SILICON CARBIDE DIODE 650V 20A P