What is the role of terminal connector contact resistance?

1, whether high-frequency electrical connectors, or low-frequency electrical connectors, contact resistance, insulation resistance and dielectric withstand voltage (also known as electrical strength) is to ensure that the electrical connector can work properly and reliably the most basic electrical parameters. Usually in the technical conditions of the electrical connector product quality consistency test A, B group of conventional delivery inspection program are listed in the requirements of clear technical indicators and test methods. These three test items are also an important basis for users to distinguish the quality and reliability of electrical connectors. But according to years of practice engaged in the inspection of electrical connectors found that; the current production plants and production plants and the use of plants between the specific implementation of the relevant technical conditions of fashion there are many inconsistencies and differences, often due to the use of instruments, test equipment, operating methods, sample handling and environmental conditions and other factors, directly affecting the accuracy and consistency of the test results. To this end, for the current three conventional electrical performance inspection program in the actual operation of the problems that exist in some of the thematic discussion, to improve the reliability of the electrical connector test is very useful.

-2, the principle of action under the microscope to observe the surface of the connector contact parts, despite the gold-plated layer is very smooth, it can still be observed 5-10 microns of the raised part. Will see the insertion of a pair of contact parts of the contact, not the entire contact surface of the contact, but scattered in the contact surface of some points of contact. The actual contact surface is necessarily smaller than the theoretical contact surface. Depending on the degree of surface smoothness and the size of the contact pressure, the difference between the two can be up to several thousand times. The actual contact surface can be divided into two parts; one is the real metal and metal direct contact part.-2、About BBC Electronic Products Network platform related to the introduction and sales of products briefly: BBC Electronic Products Network - a professional agent / production / sales of a variety of {connectors | wiring harness | wire and cable products}; if you have a related [connectors | wiring harness | wire and cable products] purchasing / sourcing needs or would like to buy / to understand which connectors | wiring harness | wire and cable products we can provide solutions, please contact the following Division Division I business personnel! If you have related [connector | wire harness | wire and cable production] sales / resources and promotion needs, please click on the "¡¡ Business Cooperation ←" with the person to discuss!