1. Good dielectric properties of low-frequency electronic connectors, high insulation resistance and high dielectric strength required, the general contact between, between the contact and the insulation resistance between the ground should be greater than 1Ω; in 0.44MPa low pressure, test voltage of 500V, should not produce arcing and breakdown phenomenon. For high-frequency electronic connectors, in addition to meet the above requirements, good requirements for high-frequency dielectric loss is small, small dielectric constant.

2. High heat-resistant temperature General heat deflection temperature to be above 200 ℃, in order to resist the installation of technology or welding on the surface of the high temperature, and can withstand the usual heat temperature of the plug itself.

3. Good arc resistance to ensure resistance to the arc generated in the process of installation of the connector to the destruction of plastic.

4. Good flame retardancy to prevent the occurrence of fire under abnormal circumstances such as short circuit, in order to avoid the danger of toxic gases to human beings, it is best to use halogen-free flame retardant materials.

5. Adequate mechanical properties Good toughness to prevent breakage; high bending strength to prevent deformation by force; specific test conditions for a certain vibration shock conditions (vibration frequency

20 ~ 60 Hz, acceleration 5g), plugging and unplugging 500 times plastic parts do not appear mechanical damage and cracking phenomenon.

6. Suitable for placing the insert coefficient of linear expansion should be small, in order to temperature changes with the insert connection is still solid.

7. High dimensional stability In the specific use of the process, after the force of creep is small, not warped, after heating, expansion is small. The general requirement is that the dimensional accuracy of the hole distance between the contact pieces should be maintained at level 6.

8. Processing fluidity should be good in line with the requirements of the increasing miniaturization of electronic connectors.

9. Good solvent resistance Plastic parts should not be subject to corrosion and cracking when subjected to the action of solvents.

10.No corrosive gas Plastic parts in the process of use, should not produce corrosive gas to the silver plating layer to prevent the impact on the conductive properties of the contact parts.