... 0, 5.0mmwelding wirePacking:25kg/disk50kg/bundle250kg/palletOur ceramic arresters and semiconductors are mainly used for over-voltage protection of ... , power supplies, cable television, computers, modems and other electronics equipment, and switching spark gaps for ignition purposes. Semiconductors are ... they strictly meet ITU-TK.12, K28, REA and GB9043, YD/T940 standards. Diodes meet IEC standards.