Characteristics of a sub-way SCR SCR SCR, triac. Way thyristor anode A, cathode K, a control electrode G three pin-outs. The triac has a first anode A1 (T1), a second anode A2 (T2), the control electrode G three pin-out. How to use single-junction transistor SCR trigger circuit it? RB1 base resistance decreases sharply SCR C106M, capacitor C discharges rapidly through the PN junction of resistors R1 to SCR, so the voltage across R1 a positive transition occurs Ug forming steep pulse edge [Figure 8 (b)]. As the capacitor C discharges, UE decline exponentially until below the valley voltage UV single-junction transistor is turned off. Thus SCR C106D, across R1 trigger pulse output is the steeple. In this case, the power UBB began to charge the capacitor C, into the second charge-discharge process. This cycle, the circuit engaged in periodic oscillations. RP can change the oscillation cycle regulator SCR C106D, are fertile Electronics (certified), SCR Dongguan City is provided by 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. You can also access (www.dgmydz.com/supply_details_42335805.html), for more information about the company.