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The influence of the spring thimble environment on the probe connector

source:pogo pin    Popular:pogo pin for moilble phone     release time:2021-08-09 08:53:52     Article author:sznbone

  Temperature resistance-At present, the higher working temperature of the connector is 200℃, and the lower temperature is -65℃. When the connector is working, the current generates heat at the contact point and causes a temperature rise. Therefore, it is generally believed that the working temperature should be equal to the sum of the ambient temperature and the temperature rise of the contact point. In some specifications, the allowable higher temperature rise of the connector under the rated operating current is clearly specified.

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  Humidity resistance-the intrusion of moisture will affect the insulation performance of the connection and rust the metal parts. The constant heat and humidity test conditions are relative humidity 90%~95%, temperature +40±20℃, and the test time is according to the product regulations, and the minimum is 96 hours. The alternating damp heat test is more stringent.

Where the spring signal pin is used(图1)

  Salt spray resistance-when the connector is working in an environment containing moisture and salt, the surface treatment layer of its metal structural parts and contact parts may produce galvanic corrosion, which affects the physical and electrical properties of the connector. In order to evaluate the ability of electrical connectors to withstand this environment, a salt spray test is specified. It is to hang the connector in a temperature-controlled test box, and spray out a sodium chloride solution of a specified concentration with compressed air to form a salt spray atmosphere. The exposure time is specified by the product specification and is at least 48 hours.

  Vibration and shock-resistance to vibration and shock is an important performance of electrical connectors. It is particularly important in special application environments such as aviation and aerospace, railway and road transportation. It is to test the robustness and electrical contact of the electrical connector’s mechanical structure An important indicator of reliability. There are clear regulations in the relevant test methods. In the shock test, the peak acceleration, duration and shock pulse waveform, as well as the interruption time of electrical continuity should be specified.


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