1. Connector type

What to connect and where to use these issues are the first to be considered, which determines the type of connector selected. The place where the connector is used will affect whether to enhance the sealing or add a shielding shell outside the insulation body. The type of connector determines which terminal to use and how many conductive terminals to arrange.

2. Electrical requirements

When selecting the electrical connector, the electrical requirements of the product shall be considered. What are the voltage and current requirements of the product, and whether the connector can be well applied to such electrical properties? We need to consider these electrical requirements. In addition, we also need to consider some other electrical conditions: resistance, allowable resistance variation, millivolt drop, maximum current value, maximum voltage value, inrush current value, characteristic impedance, VSWR (voltage standing wave ratio), plugging loss and EMI shielding efficiency.

3. Environmental requirements

The temperature, humidity and other environmental conditions are determined by the location of the electrical connector, so the location and expected environment should be considered. What is the shelf life and information of other relevant storage conditions. The description of the environment should also cover the requirements for shock and vibration, including those from shipping, and the production environment conditions, such as welding temperature

And welding cycle duration.

4. Mechanical performance requirements

What is the effective volume and footprint of the connector; What is the allowable dimension tolerance; What is the insertion and extraction force of the terminal; How durable is the connector (frequency of plug and pull fit)? These factors should be considered when selecting electrical connectors.

5. Specifications

Connector manufacturers may use approximately 25 test agencies (specifications developed) as the source of all or part of their connector test specifications. Consideration must be given to the use of appropriate test specifications for specific applications, including those commonly used internationally.