Environmental Impact on Pogo Pin Connectors
Temperature resistance - the current maximum working temperature of the connector is 200°C, and the minimum temperature is -65°C. Since the current generates heat at the contact point when the connector is working, resulting in a temperature rise, it is generally believed that the operating temperature should be equal to the sum of the ambient temperature and the temperature rise of the contact point. In some specifications, the maximum temperature rise allowed by the connector at the rated operating current is clearly specified.
Moisture resistance - the intrusion of moisture will affect the insulation performance of the connection and corrode metal parts. The constant damp heat test conditions are relative humidity 90%~95%, temperature +40±20℃, and the test time shall be at least 96 hours according to the product regulations. The alternating damp heat test is more severe.
Salt spray resistance - When the connector works in an environment containing moisture and salt, it's metal structural parts and the surface treatment layer of the contact parts may produce galvanic corrosion, which will affect the physical and electrical properties of the connector. To evaluate the ability of electrical connectors to withstand this environment, the salt spray test is specified. It is to hang the connector in a temperature-controlled test box and spray the sodium chloride solution with the specified concentration with compressed air to form a salt fog atmosphere. The exposure time is specified by the product specification, at least 48 hours.
Vibration and Shock - Vibration and shock resistance are important properties of electrical connectors, especially in special application environments such as aviation and aerospace, railway, and road transportation. an important indicator of reliability. There are clear provisions in the relevant test methods. The shock test shall specify the peak acceleration, duration, and shock pulse shape, as well as the time of interruption of electrical continuity.