一级主营： ADI, TI, XILINX, IR, E2V, Microsemi ,ACTEL二级主营： Intersil, Avago,IDT, MACOM, CREE,Triquint, Hittite(ADI), Linear(ADI)三级主营： EATON, Q-TECH, HOLT,White, UMS,SAMTEC, GSI