Greenconn Technology GmbH

1. Environmental temperature of electrical connectors The metal and insulation materials of electrical connectors determine their working environment temperature. High temperatures can damage insulation materials, causing insulation resistance and voltage resistance to decrease. High temperatures can cause the contact object to lose elasticity, accelerates oxidation and coating deterioration of the metal. The typical ambient temperature is -55~+100℃, and a higher temperature may be required under special circumstances.

2. Environmental humidity of electrical connectors Relative humidity greater than 80% is the main cause of electric breakdown. Humid environment causes the absorption and diffusion of water vapor on the surface of the insulator, which can easily reduce the insulation resistance to below MΩ level. Prolonged exposure to high humidity environments can cause physical deformation, decomposition, evaporation of generated substances, breathing effects, electrolysis, corrosion, and cracks.

In particular, for electrical connectors outside of equipment, humid, water infiltration, and pollution environments are often considered. In such cases, sealed electrical connectors should be selected. The water-tight and dust-tight connector generally use the shell protection level of GB4208 to indicate. 

3. Temperature shock of electrical connectors The temperature shock test simulates the actual use of electrical connector equipment in cold environments turning into warm environments, or simulates the sharp temperature changes of spacecraft and detector environments. Temperature shock may cause insulation material cracking or delamination.

4. Atmospheric pressure of electrical connectors In the thin air at high altitudes, plastics release gas pollution into contact objects, increasing the tendency of corona discharge, reducing withstand voltage performance, and causing circuit short circuit faults. At high altitudes where the air is thin, plastic emits gas that contaminates the contact object, increases the tendency of corona generation, reduces the voltage resistance, and causes a short circuit fault. When the altitude reaches a certain value, the plastic performance deteriorates. Therefore, when unsealed connectors used at high altitudes, they must be derated.

5. Corrosive environment of electrical connectors According to the different corrosive environments, electrical connectors with corresponding metal, plastic, and coating structures should be selected. For example, if electrical connectors without anti-corrosive metal surfaces are used in a salt spray environment, their performance will rapidly deteriorate. It is not advisable to use connectors with silver-plated contact pairs in an environment containing a relatively high concentration of SO2. In humid and hot regions, mold is also an important problem.

To ensure high reliability, qualified connectors must pass a series of tests, such as plug-in force tests, durability tests, insulation resistance tests, vibration tests, mechanical shock tests, cold and heat shock tests, mixed gas corrosion tests, etc. As a domestic senior connector manufacturer, Greenconn strictly implements high-specification quality inspection processes throughout the entire production process, and is equipped with various testing equipment and laboratories to ensure that its connectors have outstanding performance to meet different application requirements.