1路PC817光耦隔离继电器模块PDF原理图+AD集成封装库文件 集成封装库列表： Library Component Count : 9 Name Description ---------------------------------------------------------------------------------------------------- DIODE Diode Header 2 Header, 2-Pin Header 3 Header, 3-Pin LED PR9 NPN Optoisolator PC817 Relay_SRD RELAY ISO9002 Res2 Resistor