THYRISTOR MODULE 55A 1.2KV; SCR Module Type:Series Connected - SCRs; Peak Repetitive Off-State Voltage Vdrm:1.2kV; Gate Trigger Current Max Igt:150mA; Peak Non Rep Surge Current Itsm 50Hz:1.5kA; Gate Trigger Voltage Max Vgt:3V ;RoHS Compliant: Yes