The material of connector

Connector materials are common: P, NYLON66, PA6T, PA9T, LCP and many other types, in the production process of connectors will often use the above materials. The temperature resistance of the product is closely related to the characteristics of the material. Because the working environment and application field of the connector are different, the materials selected are not the same.

Connectors are plastic materials. The structure of connectors needs to be used with PIN terminals. Therefore, temperature resistance will be involved in the welding process of PCB board. Common material P.Lon66 temperature resistance in 2355. Features: The material has high mechanical strength, good toughness, high bonding strength, good dyeing performance, high CTI level, but also has disadvantages: poor fluidity than LCP material, high temperature mold molding, easy to exist moisture absorption after starting hidden trouble, light-colored products in the patch processing easy to change color.

For example, the pin base P/NYLONG66 material has no problem when it is processed by wave soldering, which is not suitable for reflow welding. Wire end of the rubber shell (plug) plastic material is also more commonly used. Some products with small spacing and thin thickness need to use LCP to process, in order to use the flow characteristics of plastic material to increase saturation during injection molding.

The common patch connector will often use PA6T.PA9T.LCP material, because the patch processing needs to use reflow welding, the temperature is required to be about 2705, the material hardness is higher and the temperature is more resistant. The advantages of this kind of material are: strong fluidity, low temperature mold, suitable for inser mold, low absorption rate, flame retardant material to meet the requirements of no halogen, welding before and after the color change is small. Of course, this kind of material also has disadvantages: mechanical strength than nylon material is poor, poor bonding line strength, poor dyeing performance, the appearance of luster