MOTOROLA SEMICONDUCTOR TECHNICAL DATA Triacs Silicon Bidirectional Thyristors .
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designed primarily for full-wave ac control applications, such as light dimmers, motor controls, heating controls and power supplies; or wherever full-wave silicon gate controlled solid-state devices are needed.
Triac type thyristors switch from a blocking to a conducting state for either polarity of applied anode voltage with positive or negative gate triggering.
Blocking Voltage to 800 Volts