Littelfuse SJxx12xx 12A High-Junction Temperature SCR Thyristor is a thyristor with a 6mA, 100mA, or 20mA low gate current trigger level maximum at approximately 1.5V. This SCR thyristor tolerates insufficient cooling and high inrush currents at startup. The SJxx12xx SCR thyristor features up to 600V blocking voltages, a wide operating margin, smaller heat sinks, longer field life, and a 150°C maximum junction temperature. This SCR thyristor tolerates is RoHS compliant and UL-recognized compound meeting a flammability rating of V-0. The SJxx12xx SCR thyristor is ideal for uni-directional switch applications. Typical applications include AC Generators (ACG), phase control in heating, motor speed controls, converters/rectifiers, control for power tools, and white goods appliances.