Use EMI absorption ring EMI absorption ring used to suppress noise on the power line, signal line, and also has the ability to absorb static pulse. 1, or directly set in a bunch of power, signal lines interfere with the absorption of energy in order to increase Dasan connector election Which can be repeated more than around a few times; 2, with mounting clamp ring Dasan EMI connector Phone for compensation of interference suppression; 3, can be easily caught in the power line, signal line; 4, flexible, reusable installation; 5, comes with the card fixed, does not affect the overall image turns the device selection The whole bundle of cable through a ferrite bead constitutes a common mode choke, if necessary, may also be in the ring on top of the cable around a few turns. The more turns, the lower frequency interference suppression, the better, the higher frequency noise while weak inhibition. In the actual project, according to the characteristics of the interference current frequency magnetic ring to adjust the number of turns. Usually when wide-band interference signals, you can set both on the cable ring, each magnetic surround different turns, so you can simultaneously suppress high frequency interference and low-frequency interference. Mechanism of action common mode choke point of view from Dasan connector Which deal, the greater the impedance, the more obvious the effect of interference suppression. The common mode choke coil impedance from the common mode inductance Lcm = jwLcm Dasan connector, easy to see from the formula, the noise of a certain frequency, magnetic inductance bigger the better. But the reality is not the case, because the actual ring also parasitic capacitance, and its existence is parallel with the inductor. When faced with high frequency noise, the capacitor capacitance is small, the magnetic inductance of the short circuit, so that the common mode choke useless. Dasan connector contact, Xu Chong-electronic products factory, Dasan connector from Dongguan City, Shi Jie Xu Song electronic products factory provided. Dongguan Shijie Xu Chong-electronic products plant (chuangxs.1688.com) (www.chuangxs.1688.com) Dongguan, Guangdong, connectors leaders, over the years, the company is implementing the scientific management, innovation and development, honesty and trustworthiness policy, and satisfy customer needs. Song Chong-wook in electronic products factory leadership with the staff warmly welcome all inquiries negotiations to create electronic products factory Song Chong-wook better future.