WeEn Semiconductors Co., Ltd Through Hole, 3-pin, TRIAC, 600V, Gate Trigger 1.5V 600V Rated average on-state current : 16a Package type : To-220ab Maximum gate trigger current : 70ma Surge current rating : 170a Maximum holding current : 45ma Dimensions : 10.3 x 4.7 x 9.4mm Length : 10.3mm Width : 4.7mm Maximum operating temperature : +125 °c, MPN: BT139-600,127