Isolated tab triacs st bta41 600brg standard insulated tab triac 40a rms on state current 420a peak non repetitive surge current 600v peak repetitive off state voltage 13v gate trigger voltage 100ma gate trigger current 80ma holding current 10mr dynamic resistance 1w power dissipation top3 package suitable for general purpose ac switching they can be used as an on off function in applications such as static relays heating regulation induction motor starting circuits for phase