What are the temperature rise standards for connectors? What are the main ways that temperature affects connectors?

Connectors are an important part of electronic equipment and their main function is to connect different electronic devices or circuit boards for signal transmission and power transfer. The connector consists of a metal conductor, insulating material and socket, whose temperature has an important impact on the performance and life of the connector. In this article, we will introduce the connector temperature rise standard and the effect of temperature on the connector. Connector temperature rise standard connector temperature rise standard is a certain current, ambient temperature and operating time, the temperature rise of the connector should not exceed the specified temperature. This standard is usually specified by the industry standard or the manufacturer. For example, the temperature rise standard for general-purpose connectors is defined according to UL 498, which specifies that the temperature rise of a connector should not exceed 30°C at a current of 20A. For industrial connectors, the temperature rise standard is usually set by the manufacturer according to the conditions of use. Connector temperature on the performance of the impact of the connector temperature is too high on the connector will have a multifaceted impact, the following are some of the main aspects: 1. Conductivity of the connector's ability to conduct depends on its material and geometry. When the connector temperature is too high, the resistance of its conductor material will increase, which will lead to a decrease in the on-state capability. This may result in reduced current transfer efficiency, increased noise, or even cause connector damage.2. Mechanical StrengthThe mechanical strength of a connector refers to its stability and reliability when subjected to external forces. When the connector temperature is too high, the mechanical properties of its materials will decline, resulting in a reduction in its ability to withstand external forces. This may lead to connector loosening, poor contact, or even damage.3. Oxidation connector temperature is too high may also lead to connector material oxidation, thus accelerating connector aging and failure. Oxidation can lead to corrosion on the connector surface, which can reduce the conductivity and reliability of the connector.4. Thermal ExpansionExcessive connector temperatures can also lead to thermal expansion of its materials. The geometry of the connector may change as a result, leading to reduced contact force or even loosening of the connector. This may result in increased resistance of the connector, reduced current transfer efficiency, increased noise, or even damage.

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