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How to choose electrical connector correctly
When selecting electrical connectors, there are also some points that need to be paid attention to, because the operation of one connector will affect the function of the whole device, and the proper electric connector can achieve the effect of twice the power with half the effort. How to choose a suitable electrical connector? We can consider the following related aspects:
1. Connector type
The question of what to connect to, where to use, and so on is a priority, which determines the type of industrial connector you choose. The location where the connector is used (indoors, outdoors, corrosive environment, etc.) may affect whether or not to enhance the sealing of the air plug or to add a cover outside the insulation body. The type of connector determines which terminal (termination) to use and how many conductive terminals to arrange. Of course, there are also some references on terminal technology.
2. Electrical requirements
When selecting an avionics connector, consider the electrical requirements of the product. What are the voltage and current requirements of the product and whether the connector can be used well in such electrical properties? These questions about electrical requirements need to be considered. In addition, we need to consider some other electrical conditions: resistance, allowable change in resistance, millivolt drop, maximum current value, maximum voltage value, inrush current value, characteristic impedance, VSWR, plug loss and EMI shielding efficiency.
3. Environmental requirements
Temperature, humidity, and other environmental conditions are determined by the location of the air terminal, so the location and the expected environment should be taken into account. The shelflife of other related storage conditions and what the information is. The environmental description should also include requirements for impact and vibration, including those arising from shipping, and production environmental conditions such as welding temperature and duration of the welding cycle. The connector manufacturer says that the maximum temperature is generated around the junction type of continuous current that the connector directs.
4. Mechanical performance requirements
What is the effective size and coverage of the connector? What is the allowable dimensional tolerance? What is the insertion and extraction force of the terminal? How durable is the connector? These factors should be considered when selecting electrical connectors. For example, for a printed circuit board, 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, the coating and substrate materials must be specified in accordance with signal standards and environmental grades.
The manufacturer of air plugs may use about 25 test mechanisms (specified specifications) as the source of all or part of the test specifications for its connectors. Consideration must be given to the adoption of appropriate test specifications for specific applications, including those for international use.
There are many more issues to consider in choosing an appropriate electrical connector, but these are just a few of the broader factors that are not all covered. When choosing electrical connectors, it is important to choose a good product company.