Description:Phase control thyristor module, dual SCR thyristor thyristor in pressure contact package KOF . Repetitive peak off state voltage 1400 V. Average on state current IT AV 60 A TC 85 C . Maximum RMS on state current ITRMS 120 A. Surge current ITSM 10 ms 1550 A. Critical di/dt 150 A/ s. Critical dv/dt 1000 V/ s. On state voltage 1.9 V at 300 A slope resistance rT 3.4 mOhm. Electrically insulated baseplate. Typical weight 160 g.