Why do circular connectors fail to make good contact?

Circular connector features: advanced structure, high reliability, easy to use features, is gradually applied to a variety of instrumentation. Poor contact is a common fault in the use of circular connectors, so what is the reason? Circular connector product internal faults, poor component contact, production of solder joints false welding will lead to poor contact circular connectors. The pins and terminals of circular connectors are coated with pure tin, gold, silver or nickel plating. Contact between the coatings occurs when the devices are connected. Different coating materials have different electrical conductivity, so the contact resistance varies. When the welding of circular connectors is carried out, alloy process is mostly used for welding, except for the welding technology is not up to the mark, otherwise poor contact will not occur. When the surface coating of the circular connector is oxidized, it may lead to poor contact. Low contact pressure can also lead to poor contact. When storing circular connectors, in order to ensure that the connector contact is good, it is recommended to be placed in a ventilated, dry environment, away from the environment that may cause corrosion.

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