What indicators should I consider when choosing a waterproof connector?

What indicators should be considered for a good waterproof connector? This question is unavoidable for buyers. Here's a detailed introduction to what indicators should be considered for a good quality connector. When choosing a high-quality waterproof connector, the indicators that need to be considered include the following 14 aspects: 1. Current carrying capacity indicators Usually, the current carrying capacity of the connector power signal should be derated, and the insulation and withstand voltage between pins should also be paid attention to. 2. Impedance matching index The signals of some devices will have impedance requirements, especially radio frequency signals, which have stricter impedance matching requirements. When the impedance is mismatched, it will cause signal reflection, which will affect signal transmission. Of course, general signal transmission has no special requirements on the impedance of the connector. 3. Shielding index With the rapid development of communication products, electromagnetic compatibility has received more and more attention. Generally, the connector of choice requires a metal housing, and the cable requires a shielding layer. The shielding layer should be connected with the metal shell of the connector to achieve the shielding effect. The plug can also be wrapped with copper sheath by injection molding, and the shielding layer of the cable and the copper sheath can be welded together. 4. Structural size index In the connector production process, the overall size design is a very important step, because the connected equipment will have certain space constraints, especially the connectors on the single board, which cannot interfere with other components. Therefore, it is necessary to select suitable mounting methods (including front mounting and rear mounting, and mounting and fixing methods include rivets, screws, collars or quick locking of the connector itself) and shapes (straight, curved, T-shaped, circular and square) according to the use space and mounting position.

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5. Anti-misinsertion index The anti-misinsertion index of the connector is divided into two aspects. On the one hand, the connector itself rotates 180 degrees, and the wrong connection leads to the wrong signal connection. At this time, we should pay attention to choosing connectors that prevent misinsertion as much as possible, or adjust the relative position of the connectors to make the assembly unique. On the other hand, for the sake of reducing the type of materials, several signals use the same connector. At this time, plug A may be inserted into plug B. At this time, it should be noted that if such a situation will cause serious consequences, then different types of sockets must be selected for interfaces A and B. 6. Reliability index Because the main function of the waterproof connector is to provide signal transmission performance for the equipment, the connection part must be reliable (for example, surface contact is better than point contact, pinhole type is better than leaf spring type, etc.). 7. Versatility Index It should be noted that in the process of selecting connectors, try to select common objects, especially between products of the same series. The choice of connectors has strong versatility, which can reduce material types, increase quantities, reduce costs and reduce supply risks. 8. Environmental indicators of use Usually, connectors will have special performance requirements when used in outdoor, indoor, high temperature, high humidity, salt spray, mold, cold and other environments. 9. Locking function index Generally speaking, in order to prevent the connector from falling off when docking with the equipment and ensure good contact performance, the connector needs to have a locking function. 10. Cost index Cost is also a key factor in the process of connector selection. With the increasingly fierce market competition, the connector's own cost and processing cost need to be comprehensively considered. 11. Supply indicators Usually, the supply of connectors will also be affected by many factors. For example, universal connectors are better than non-universal connectors, and domestic connectors are better than foreign connectors. 12. Plug-in life index The number of insertions of the connector has a certain life. After the number of plug-ins reaches the limit, the performance of the connector will decline. Some signal interfaces need to pay more attention to the number of insertions when selecting connectors. 13. Live indicators Usually, pin or hole connectors can be selected according to normal charging and non-charging conditions. When purchasing products related to waterproof connectors, there will be various factors, so comprehensive consideration is a more reliable way. Choosing a more suitable connector will have different degrees of impact on the product at different stages.

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