10pcs/lot SMD Schottky diode SK54 5A/40V SMC (C type) DO 214AB original| diode 5a|smd diodec c - AliExpress
Diode - Wikipedia
China Voltage protection device SMD TVS diode SMCJ190(C)A Voltage protection on Global Sources,TVS Diode,Voltage Suppressors,Transient suppression diode