When choosing an electrical connector, there are also some points to pay attention to, because the operation of a connector will affect the function of the entire device, and a suitable electrical connector can bring twice the result with half the effort. How to choose a suitable electrical connector? We can consider the following related aspects:
1. Connector type
What to connect, where to use, etc. These issues should be considered first, which determines the type of industrial connector selected. The location where the connector is used (indoor, outdoor, corrosive environment, etc.) will affect whether to enhance the sealing of the aviation plug or add a shielding shell outside the insulating body. The type of connector determines what termination is used and how many conductive terminals are to be arranged. Of course, this also involves some references to terminal technology. 
2. Electrical requirements
When choosing an aviation electrical connector, the electrical requirements of the product should be considered. What kind of voltage and current requirements the product has, and whether the connector can be well used in such electrical properties, these questions about electrical requirements need to be considered. In addition, we also need to consider some other electrical conditions: resistance, allowable resistance change, millivolt drop, maximum current value, maximum voltage value, inrush current value, characteristic impedance, VSWR (voltage standing wave ratio), interpolation pull-out loss and EMI shielding efficiency. 
3. Environmental requirements
Temperature, humidity and other environmental conditions are determined by the location of the aviation connector, so the location and expected environment should be considered. And what is the shelf life and information about other relevant storage conditions. Shock and vibration requirements should also be included in the description of the environment, including those from shipping, as well as production environmental conditions such as welding temperature and welding cycle duration. Connector manufacturers state that the area around the confluent continuous current carried by the connector is where the highest temperature occurs. 
4. Mechanical performance requirements
For the connector, what kind of volume and footprint is effective; what is the allowable dimensional tolerance; what is the insertion and extraction force of the terminal; what is the durability of the connector (frequency of insertion and extraction) ? These factors are to be considered when selecting electrical connectors. For example, for printed circuit boards, it is important to determine the tolerance of the circuit board, which is the critical value of the card edge connection, and the feasibility of reaching the critical value. For low-power circuits, plating and underlying materials must be specified in accordance with signal standards and environmental ratings. 
5. Specifications
Manufacturers of aviation plugs can use about 25 test organizations (specified specifications) as a source of all or part of their connector test specifications. Consideration must be given to the use of appropriate test specifications in specific application situations, including those used internationally. 
How to choose a suitable electrical connector needs to be considered far more than these, the above are just some broad factors and not all of them are covered. When choosing electrical connectors, it is important to choose a good product company.