G4A1APE12DC G4A-1A-PE12DC G4A-1A-PE-12DC G4A1APE12DC 贴片二极管 G4A-1A-PE12V G4A-1A-PE-12V G4A-1A-PE-12V 通信继电器 G4A-1A-PE-12V-12V G4A-1A-PE12VDC G4A-1A-PE-12VDC