Triac - Detection DIP4 pin type ZC TRIAC optocouplers use a multimeter RXl profile of an electrode for determining the triac thyristor T435-800T, and also check the ability to trigger. 1. determination T2 very G very very close to the T1, T2 very far away. Therefore SCR, G-T1 between the positive and negative resistance is very small triac - Detection DIP4 pin type ZC TRIAC optocouplers indicating that SCR BT137S-600E, if measure a foot and other feet do not pass, it will certainly be very T2. In addition, the use of TO-220 package, triac, T2 pole normally communicates with a small cooling plate, thus also determine the T2 pole SCR T435-800T, SCR, is fertile electrons from Dongguan City is fertile Electronic Technology Limited. Dongguan City is Wo Electronic Technology Co., Ltd (www.dgmydz.com) (www.dgmydz.com) strong, credible, FET and other industries in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead positive fertile electronic and you hand into the brilliant, for a better future!