Views:0 Author:Site Editor Publish Time: 2018-05-10 Origin:Site
Multi-layer ceramic capacitors, also known as SMD capacitor and surface mounted capacitor, is usually yellow, black or light blue. Can be divided into two categories of polarity and polarity, Samsung capacitor first level agent to explain to you multi-layer ceramic capacitors positive and negative pole how to distinguish?
The positive and negative pole of the electrolytic capacitor capacitor is divided and measured. The marked black block is negative. On the PCB, the capacitance has two semicircle, and the color half circle corresponds to the negative electrode. It is also useful to distinguish the positive and negative pole from the pin length, and the short foot is negative.
When we do not know the positive and negative poles of capacitance, we can use multimeter to measure it. The medium between the two poles of capacitance is not an absolute insulator. Its resistance is not infinite, but a finite value, usually above 1000 megabits. The resistance between the two poles of capacitance is called insulation resistance or leakage resistance. Only when the positive electrode of the electrolytic capacitor is positive (the black pen when the resistance is in the resistance) and the negative end power supply is negative (the red surface pen when the resistance is resisted), the leakage current of the electrolytic capacitor is small (the leakage resistance is large).