One connector type to connect what, where and so on these issues is the first thing to consider, which determines the type of selected industrial connectors. Connection is to use the location (indoor, outdoor, corrosive environment, etc.) will affect whether you want to enhance aviation plug seal or shelter shell outside of the insulation body. The type of connector which terminals (termination), as well as to arrange the number of conductive terminals. Course, which is also related to the reference terminal technology.
2, the electrical requirements to be considered in the choice of electrical connectors, electrical requirements of the product. Products and what kind of voltage and current requirements, the connectors use can be well applied electric power requirements we need to consider. In addition, we also need to consider some other electrical conditions: resistance, allow the change of resistance, millivolt drop, the maximum current value, the value of the maximum voltage, inrush current value, the characteristic impedance, VSWR (voltage standing wave ratio), insert The Stubbs loss and EMI shielding efficiency.
Environmental requirements of temperature, humidity and other environmental conditions by the electrical connector in which the location decision, and therefore should consider the location and the expected environment. What is the other storage conditions of the applicable period (shelf life), as well as information. Elaboration on the environment should also cover the requirements for shock and vibration, including from the requirements for sea, as well as the production of environmental conditions, such as welding temperature and welding cycle duration requirements. Connector manufacturer, said is the maximum temperature around the confluence of continuous current connector to the guidance produced by region.
4, the mechanical performance requirements for the connector, what kind of volume and coverage area (footprint) is valid; allowable size tolerances; terminal insertion of pull-out strength; the durability of the connector (plug with the frequency)? These factors are to be considered in the choice of the electrical connector. For the printed circuit board, such as: to determine the tolerance of the circuit board is very important, which is the critical value of the card edge connector (card edge connection), and critical feasibility. For low-power circuits, the coating and the underlying material must be specified to be consistent with the signal standards and environmental level.
5, the specification connector manufacturers about 25 test institutions (established by the specifications) can be used as a connector all or part of the source of the test specifications.