贴片SN75LVCP422DBSN761680BDBTRSN75LBC777DWR ¥2 0去看看 芯片二极管三极管电容电阻集成电路发布了 贴片直插SN761680BDBTR SN75LBC777DWR SN75LVCP422DB 5 丝印SNDARG761677 ¥1.4 0去看看 能良科技发布了 丝印SN761683DARG4-SN761680PDBTR-SN761678BDBTR-SN761677DARG4