Triac - construction principle characteristic is that when G pole pole with respect to T1 and T2 SCR BT134W-600E, both positive voltage thyristor BT136S-600E, T2 is the anode, T1 is the cathode. Conversely SCR T405-800T, and T2 when G-pole voltage electrode with respect to T1 are negative, T1 becomes the anode, T2 is a cathode. Since the triac, the reverse characteristic curve has symmetry, so that it can be turned in either direction. Triac - voltage characteristic way thyristor when the voltage increases, the occurrence of the bending characteristics, such as the characteristics of OA segment shown bend is called UBO: forward breakover voltage, the voltage rises to J2 junction avalanche After the breakdown voltage, J2 junction avalanche multiplication effect, resulting in a large number of electrons and holes SCR BT134W-600E in the junction area, are fertile Electronics (certified), SCR provided by the Dongguan City is Wal-Electronic Technology Co., Ltd. . Dongguan City is Wal-Electronic Technology Co., Ltd. (www.dgmydz.com) (www.dgmydz.com) is Dongguan, FET leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum limits to meet customer needs. Wal-electronics leader in the positive with the staff warmly welcome all inquiries negotiations to create a positive future Wal-electron better.