Metal button connectors are a component of our electronic engineering personnel. Its function is very simple: in the circuit is blocked or isolated circuit between, set up a bridge of communication, so that the current circulation, so that the circuit to achieve the intended function. Connectors are an integral part of electronic devices. Follow the current path, and you will always find one or more connectors. Connectors form and structure are ever-changing, with the application object, frequency, power, application environment and so on, there are various forms of connectors.