How to test the performance of connectors?

Connector test consists of two parts: condition setting (environmental control) and measurement. Condition setting determines the type of test. For example, measuring contact resistance after placing in a corrosive environment is an environmental test. There are three common types of connector test: environmental performance test, mechanical performance test and electrical performance test. The basic reason for connector testing is to confirm the performance of the connector. Except for design validation testing (performed on mockups or preproduction samples) to verify the validity of the design, most connector testing is to confirm the performance of the connector according to the test specification or qualification test procedure. It generally includes environmental test, mechanical performance test and electrical performance test. Test procedures, measurements, and acceptance criteria are related to the application and market requirements of the connector. For general applications and general markets, the test requirements and acceptance criteria are also common. When the specific application environment becomes the focus of the test procedure, the test conditions will be more specific and more accurately reflect the actual application conditions, so will the measurement and acceptance criteria. This is called performance confirmation testing. The connector reliability test is similar to the performance confirmation test and qualification test, but there are two obvious differences: one is that the reliability test must be clear about the relationship between the test conditions and the application (which is much stricter than the qualification test), in other words, it is required to know the acceleration factor of the test, that is, X days of a condition in the test corresponds to Y years of B condition in the application. This requirement is not easy to meet and also limits the scope of application of reliability testing; the second is the acceptance criteria-the scope of the acceptance criteria and the required statistical processing. The acceptance criteria for qualification testing is for general purpose applications (the product allows a wide range of applications). That is to say, the product is required to meet the performance requirements in various common applications, so the requirements are higher and the acceptance standards are stricter. Therefore, the acceptance standards for reliability testing are much more relaxed, but the statistical requirements for reliability testing are much stricter. For example, the sampling quantity is much larger, and the statistical analysis requirements are higher.

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