D-shaped connector is an interface connector of analog signals or digital signals. Customers must know the bearing current and voltage performance of the type D connector. That’s because the current load of the connector is generally determined by the thickness of the wire and contacts, and the rated voltage is determined by the distance between contacts and insulation material, so make sure that the contacts meet the size of the supporting conductor to avoid overheating and other adverse conditions. Connectors can be used in a variety of environments, such as moisture, temperature, vibration, and shock.