Russia type, stud version thyristor 10A~25A, 200V~1600V. T212, T222, T232, T242 case, also have fast ... thyristor (TB), triac (TC). Russia type, stud version thyristor 10A~25A, 200V~1600V. T212,T222,T232,T242 case, also have fast ... ≤2.0 RST2 thyristor stud version,SCR, Russia type 10-25A