What is the material of the car connector

The quality and reliability of automotive connector materials are related to the quality and reliability of the connectors. The materials of automotive connectors should not only be considered from their mechanical properties, thermodynamic properties, electrical properties and electrochemical corrosion properties, but also from the machinability and cost of materials.

For example: for contacts that need to maintain a high contact pressure, in order to prevent bending damage when the contacts are mated and separated, the material is required to have a large elastic limit to prevent yield deformation or fracture rya.

For the contact pair that needs to be inserted and pulled out multiple times, it is necessary to ensure that the contact material has a certain hardness and shear strength to improve the wear resistance of the material. For connectors operating in high temperature environments, the material needs to have a low coefficient of thermal expansion to reduce the likelihood of material fatigue.

The quality and reliability of automotive connector materials are related to the quality and reliability of the connectors. The materials of automotive connectors should not only be considered from their mechanical properties, thermodynamic properties, electrical properties and electrochemical corrosion properties, but also from the machinability and cost of materials.

For example: for contacts that need to maintain a high contact pressure, in order to prevent bending damage when the contacts are mated and separated, the material is required to have a large elastic limit to prevent yield deformation or fracture rya.

For the contact pair that needs to be inserted and pulled out multiple times, it is necessary to ensure that the contact material has a certain hardness and shear strength to improve the wear resistance of the material. For connectors operating in high temperature environments, the material needs to have a low coefficient of thermal expansion to reduce the likelihood of material fatigue.

Commonly used contact materials for automotive connectors are gold, silver, brass, phosphor bronze and copper alloys, among which gold is an excellent conductive material with strong corrosion resistance, but due to its high price, it is generally used for electronic licensing. required system.

Silver is a metal material with low resistivity, but is easily oxidized to form a film in a sulfur-containing environment, resulting in an increase in contact resistance. Brass is cheap and has good electrical conductivity, but tends to lose its elasticity under repeated pressure.

Phosphor bronze has good electrical conductivity and mechanical properties, is affordable, and is widely used in the manufacture of ordinary connectors. Copper quilt alloys have the characteristics of high hardness, wear resistance, corrosion resistance, etc., and are often used in connectors that require multiple insertions.