Dongguan Songshen Plastic Electronics Co., Ltd. was established in 2001. For many years, it has been dedicated to chip resistors, chip capacitors, wirewound resistors, plug-in electrolytic capacitors, plug-in carbon film resistors, plug-in gold film resistors, power inductors, chip inductors, The production and sales of chip tantalum capacitor electronic components on the main board of the use of the upper floor of the friend said more clearly, not much to talk about. As for the polar capacitor used in the AC circuit, it is absolutely impossible. The polar capacitor (electrolytic capacitor) on the main board works in the DC circuit and at least works in the pulse DC circuit. In addition, some capacitors have polarities without asking "great God." Let me tell you: Because the production process with polar capacitors has determined that such capacitors must have polarity, such capacitors in the production process in order to reduce the size and reduce the cost is often the use of two aluminum foil as a capacitor plate, Insulating between the two plates with special electrolytic capacitor paper and then pouring the electrolyte into the inside, and then manufacturing an oxide layer on the surface of one of the anodes (the anode, which is connected to the positive electrode), in the process, the capacitor Naturally, "polarity" is formed. When using such a capacitor, it must be correctly connected according to the polarity, otherwise the oxide layer will be destroyed and the insulation will be lowered to break down the explosion or even explode. Http://news.chinawj.com.cn Submission: Automatic Motion Sensor Led Lamp,Automatic Led Light Sensor,Automatic Motion Sensor Led Light,Led Automatic Lights Foshan Nai An Lighting Electric Co.,ltd , https://www.emballast.com