How to determine the three poles of SCR? How to determine whether the damage to the SCR? Identification of three poles SCR method is very simple, according to the principle of the PN junction, as long as the resistance with a multimeter to measure three poles between what you can. Forward and reverse resistance between the anode and the cathode in the hundreds of thousands over Europe SCR C106D, forward and reverse resistance between the anode and the control electrode of the hundreds of thousands over Europe (among them two PN Results SCR, but in the opposite direction, so the anode electrode and the positive and negative controls do not pass). After distinguishing T1 G pole and pole (1) identify the T2 pole, first assume that the rest of the feet in a foot of Tl pole, the other foot for G pole. (2) the black pen then T1 pole, the red pen then T2 pole, resistance is infinite. Followed by the red pen to T2 and G shorted SCR C106M, to G pole with a negative trigger signal, the resistance value should be around ten Euro (see Figure 4 (a)), the tube has proved conduction, conduction direction T1 a T2. Then the red and G electrode tip disengaged (but still connected to T2), if the resistance value remains unchanged, to prove the tube after the trigger can be maintained in the ON state. SCR C106G, 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.