AC Thyristors (ACT) are full cycle AC conduction power switches and have exclusively negative gate triggering in two quadrants only with self-protective capabilities against low- and high-energy transients. Their specially designed structure ensures safe high over-voltage withstand capability to IEC 61000-4-5 as well as safe clamping for lower-energy voltage transients. They have very high noise immunity with remote gates that separate the gate drivers from the effects of the load current. Their planar-passivated construction ensures voltage ruggedness and reliability. ACTs are not pin compatible with either 3Q Hi-Com or standard 4Q triacs. Surface-mount ACTs facilitate a shared cooling pad as the common terminal is on the mounting base.

ACTs employs our fifth-generation, triple-implanted planar passivated technology. The extra performance and superior reliability of the ACT make it ideally suited for a wide range of applications that deal with lower-power, highly inductive, resistive, and safety loads, including contactors, circuit breakers, valves, dispensers and door locks in washing machines, dishwashers, refrigerators, vending machines, plumbed-in water heaters and coolers, coffee machines, bathroom equipment, drink dispensers, and more. It is also well suited for use in pump and fan motor circuits.