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Visit：4035 Date：2019-03-07

First, take out an electrolytic capacitor. The first method is to look at the electrolytic capacitor hose. The end of the hose is marked with a negative electrode. The other end of the positive electrode is not indicated. The second method is to look at the electrolytic capacitor pins. One end with a grid at the pin represents the negative pole and the other end represents the positive pole. There is also an electrolytic capacitor that is not like this, but a needle type. See the figure below: This capacitor first looks at the guide pin, and the long end of the guide pin is the positive pole. The short end of the guide pin is the negative electrode. At this time, if someone asks me, how do some of the positive and negative electrolytic capacitors that have been cut corners judge? Smart, you will find that the short end of the electrolytic capacitor hose has an electrolytic capacitor positive and negative.