nec 2P4M way thyristor 2A, 400V, Dongguan, Zhongshan factory wholesale triode thyristor minutes from the main spiral shape, three flatbed peaceful hearth, spiral used more often. There are three SCR --- anode electrode (A) of the cathode (C) and a control electrode (G). It has a four-layer structure of the die is P-type and N-type conductor overlap conductor consisting of a total of three PN junctions. SCR and only one PN junction silicon rectifier two extreme tube structurally different. SCR four-layer structure and the control electrode of reference for its play "with little control big" excellent control characteristics of the foundation. Mac97a6s patch when applied thyristor SCR, as long as the control electrode coupled with small current or voltage, can control a large anode current or voltage. Current capacity of up to several hundred or even thousands of amperes amps thyristor. Generally kept below 5 amps power thyristor SCR petit patch SCR sot252,50 called amperes or more high-power thyristor SCR. SCR triac A1 between the first and second anode anode A2, regardless of the applied voltage polarity is the forward or reverse patch SCR to-263, as long as the control electrode G and is applied between the first anode A1 polarity different trigger voltage, you can trigger the conduction low resistance state. In this case A1, A2 between the pressure drop is about 1V. Once a triac is turned on, even if the loss trigger voltage, can keep the conductive state. Only when the first anode A1, A2 second anode current is reduced, less than the holding current or A1, A2 when the voltage polarity between change and no trigger voltage, triac was truncated, this time only to re-trigger voltage applied before conduction. SMD SCR sot252, are fertile Electronics (certified), SCR patch provided by the Dongguan City is Wal-Electronic Technology Co., 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_44239280.html), for more information about the company.