1928498652 Auto Crimp Loose Pin Wiring Connector Equivalent Loose Terminals

Factors affecting contact parts reliability

Form of contact

There are three types of contact form, line, and face. Usually it is a point contact. But when its scope is expanded to a certain extent, it is both line or face contact. Relatively speaking, the more contact points, the corresponding contact resistance will be smaller, and the actual use effect will be better.

Contact pressure

Generally, the contact resistance generated instantly in all contact forms is large. With the increase of its contact area and corresponding points, the instantaneous voltage will be reduced because the corresponding contact resistance continues to decrease. Among them, the selection of jack elastic structure is particularly important.

Temperature effect

When the working temperature of the contact rises to a certain degree, the hardness of the pins and jack materials will decrease with the increase of the temperature, but the smaller the contact resistance, the less obvious this problem; the higher temperature It will accelerate oxidation of the contact surface of the two, and then exacerbate them, so some suppression is needed.

Corrosive metal substance

There are two types of chemical and electrochemical corrosion. Most of them are caused by external environmental pollution. This type of pollution substances can cause oxide layers to appear metal surface, which will cause its corresponding contact resistance to rise.

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