How to distinguish the positive and negative poles of a dc power socket

DC power sockets are very common in our lives, especially in the digital home appliance industry. When using dc power sockets, we often encounter a problem, that is, how to distinguish the positive and negative of the dc power socket. okplazas.com is a professional manufacturer specializing in dc socket sales and integrated development, design, production and manufacturing of electronic connectors. The following okplazas.com editor teaches you how to distinguish the positive and negative poles of the dc power socket. We have two methods. The details are as follows.

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DC-012 power socket

Method 1: There is a piece of power in the hole as the negative pole, and the negative side is marked with a symbol next to the 9V DC socket. The pin in the hole is the positive pole. Some dc power sockets have opposite polarities. -, pay attention to the positive, distinguish it from the socket.

Method two, use a universal meter to find out, the red is positive and black is negative. At this time, if it shows -12, it means that the red test is negative and black is positive. If 12 is displayed, it means that the red test is positive, and the black test is negative.

In general, if we have a multimeter, the easiest way is to use the multimeter to measure the positive and negative poles of the dc power socket. If you don't use a multimeter, we will consider another method. DC power sockets are often used in chargers, car audio, electronic toys, communication equipment, household appliances, electronic instruments, LED lighting and other fields. The dc sockets produced by okplazas.com are exported to Europe and the United States. The company's integrity, strength and product quality have been recognized by the industry.