How to choose the right electronic connector correctly?

Electronic connectors in a variety of electrical circuits play a very important role in disconnecting or connecting circuits, so its reliability is very important, the user should be carefully identify the type of product, parameters, voltage, current, so as to choose the right product. Classification is more according to the frequency, shape, use, etc. can be divided into high-frequency connectors, low-frequency connectors, circular connectors, rectangular connectors, cabinet connectors, power connectors and so on. Electrical parameter requirements of different electronic equipment on the electrical parameter requirements are different, so in the purchase of the need to consider the electrical parameters of the connector is consistent with the actual use. Rated voltage of some electronic components if lower than the rated voltage, resulting in equipment can not complete the due function, in principle, the electronic connector in the rated voltage can play a normal role, it is recommended that we use the environment to choose. Rated current electronic connectors in less than the rated current, it can work normally. However, it should be noted that if you need to buy a multi-core connector, then you need to take into account the rated current must be derated to use. Contact resistance of the two contact conductors in contact with the part will produce resistance, and this resistance is the contact resistance, we need to take into account the different materials and plating when purchasing connectors, the contact resistance is not the same.

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