What is the environmental performance of FPC cable connectors?

I. FPC cable connector environmental performance is how? ① High temperature resistance Currently the connector's higher operating temperature of 200 ℃ (except for a few special high-temperature connectors), the low operating temperature of -65 ℃. As the connector works, the current in the contact point generates heat, resulting in a rise in temperature, it is generally believed that the operating temperature should be equal to the sum of the ambient temperature and the contact point temperature. In some specifications, it is clearly stipulated that the rise of the container under the rated operating current. ② Resistant to the intrusion of moisture will affect the insulation of the connection h and corrode the metal parts. Constant damp heat test conditions for the relative humidity of 90% ~ 95% (according to the product specification can be up to 98%), the temperature +40m20 * C, the test time according to the product at least 96 hours. Alternate humidity and heat test is more stringent. ③ salt spray resistant connectors in the environment containing moisture and salt work, its metal structural components, contact parts surface treatment layer may produce galvanic corrosion, affecting the physical and electrical properties of the connector. A salt spray test was developed to evaluate the resistance of electrical connectors. The connector is suspended in a temperature-controlled test chamber, with a specified concentration of sodium chloride dissolved in compressed air spray, the formation of salt spray atmosphere, and its exposure time according to product specifications, at least 48 hours. ④ Vibration and shock resistance Vibration and shock resistance is an important performance of electrical connectors, especially in aviation, aerospace, railroads, highways and other special applications. This is an important indicator to test the robustness of the mechanical structure of the electrical connector and the reliability of the electrical contact. The relevant test methods are clearly defined. The impact test should specify the peak acceleration, duration and impact pulse waveform and electrical continuous interruption time. ⑤ Other environmental performance According to the requirements of use, other environmental performance of electrical connectors include sealing (air leakage, liquid pressure), liquid impregnation (habituation to specific liquids), low air pressure and so on.

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