stud version phase control thyristor 1.30A~50A,200V~1600V. 2.TO-65 case, 3.fast thyristor, triac International Rectifier(IR) type, stud version thyristor 30A~50A, 200V~1600V. TO-65 case, also have fast thyristor, triac.FeaturesHigh surge current capabilityStud cathode and stud anode versionWide current rangeInch device version availableTypical ApplicationsMachine tool controlsBattey ...