Ceramic housing for semiconductor and diode,passed ISO 9001 and ISO14001.Export to Germany, Britain,India and so on OEM service With the complete products specifications ... Plating thickness,2-7μMain materialCeramic,93.5%min AL2O3 Glaze,Color white ,T ≥14 0°C Flange,TU1(OFHC· ... Ag72Cu28 Alloy Gate tube,TU1(OFHC·Cu)or Ni42Fe58 Alloy Ceramic housing for IGCT, Reserve conducting gate commutated thyristor