Peak off-state Voltage Item Average On-state Current R.M.S. On-state Current Surge On-state Current It 2 V V V Unit A A A A2S W W A V V A/ s V Single phase, half wave, 180 conduction, Tc 81 DataSheet4U.com Single phase, half wave, 180 conduction, Tc 81 1 2 DataShee ITSM It 2 Cycle, 50/60HZ, Pea.