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Why does the connector of the electrical connector choose high density material?

author:kingsignal time:2017/08/07

In modern electrical and electronic equipment, the density of components and the increasing function between them, the electromagnetic interference made a strict limit. The pressure is between the insulated parts of the contact pair or between the insulated part and the ground, and the air electrical connector can withstand a higher voltage than the rated voltage for a specified period of time without causing a breakdown voltage. It is mainly affected by contact with the spacing and creepage distances and geometries, insulator materials, and ambient temperature and humidity, atmospheric pressure.

 

So the electrical connector is often closed with a metal shell to prevent the internal electromagnetic radiation or by the external electromagnetic field interference. At low frequencies, only the magnetic material can play a significant role in shielding the magnetic field. At this point, the electrical continuity of the metal shell has certain requirements, the air connector is the shell contact resistance.

 

Insulation resistance refers to the electrical connector in the electrical part of the application of voltage, so that the insulation part of the surface or surface leakage current generated by the resistance value. It is mainly affected by insulation materials, temperature, humidity, fouling and other factors. The insulation resistance values provided on the connector samples are generally the index values under standard atmospheric conditions. Under certain environmental conditions, the insulation resistance will be reduced in no degree. Also pay attention to the insulation resistance of the test voltage. Depending on the insulation resistance (MΩ) = the voltage (V) applied to the insulator / leakage current (μA), a different voltage is applied. In the connector test, the applied voltage is generally 10V, 100V, 500V third gear. The withstand voltage is between the insulated parts of the contact pair or between the insulating part and the ground, and the electrical connector can withstand a higher voltage than the rated voltage for a specified time without causing breakdown voltage. It is mainly affected by contact with the spacing and creepage distances and geometries, insulator materials, and ambient temperature and humidity, atmospheric pressure.

 

The above is a brief introduction to the electrical connector shell selection of high density materials, to learn more about the contents of the electrical connector, please pay attention to kingsignal official website.

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