How to judge the quality of a connector?

Last Update Time: 2019-05-24 13:07:43


When choosing a connector, quality has always been a topic that can't escape, and how to judge the quality of the connector, each person's evaluation criteria are different, suitable is the last word. In fact, when choosing a connector, you can judge the pros and cons of a connector from the appearance.

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First of all, we understand the following basic connector appearance standards. The connector consists of a terminal housing and a needle holder. We divide it into pre-assembly and post-assembly inspections:

 

Pre-assembly inspection: lack of material, burrs, shrinkage, deformation, chromatic aberration, dirt, plugging, indentation, unevenness/deformation of the barrier, card upturn, sag/bias or break, wrong PIN mark / no PIN Identification

 

After assembly inspection: copper shell / iron shell and plastic shell with or without gap, iron shell / copper shell deformation, buckle is not pressed in place / bias, rubber shell crush, left and right hooks are not installed in place (exposed size of hooks at both ends) Inconsistent), press the hook several times by hand to confirm whether the left and right hooks are normal or not.

 

All of the above are the defective products of the connector manufacturer when testing the product, and remove the defective products inside. These are the testing steps in the manufacturer's quality inspection.

 

Connector detection

Others are that the surface looks fine, but the interior is bad. We can directly get the quality of the connector by touching, smelling and watching.

 

1. Touch and feel the connector production is not careful. If the surface has obvious roughness, the life is not guaranteed, and there is a huge difference between the safety and the quality product.

 

2, smell, some manufacturers will add scent to cover the taste of inferior materials, so encounter scented products need to be more careful to scrutinize.

 

3. Look, if you see that the connectors and sockets are heavily oxidized on the metal surface, which is basically close to the gray color, these are quality problems that can affect the quality of the weld. Generally, connectors that have not been used are not oxidized or damaged in appearance.