Diagnostic Tool for Printed Circuit Board

Our work is related to the study of plug-in connector used in low level (a few Amperes). The application fields are instrumentation and control (I&C) electrical installations. The long service duration of these semi-permanent electrical contacts throughout their lifetime relies on having a stable force. The objective of this study is to know the main mechanical parameters which impact on the electrical connector’s lifetime. The main results are that insertion force and friction coefficient of contact change after thousands of insertion-extraction cycles. We observed the insertion-extraction velocity strongly influences the evolution of the insertion force and that increasing the insertion velocity generated more debris that will create resistance during insertion phase.