USBLC6-4SC6 USBLC6-4SC6 ESD静电二极管 USBLC6-4SC6 TEL:88834448 USBLC6-4SC6(UL46) USBLC6-4SC6-ES USBLC6-4SC6-MS USBLC6-4SC6Y USBLC6-4SC6Y-ES USB-LEITUNG USB-LINK-IR