Anti misplug: there are two aspects to prevent misplug: on the one hand, the connector itself rotates 180 degrees, and the wrong size of the connecting pin and bus leads to the wrong signal connection. At this time, we need to pay attention to choose the anti misplug connector as far as possible, or adjust the relative position of the connector to make the assembly more flexible; on the other hand, in order to reduce the type of material, several signals use the same connector, at this time, the pin is expensive? Plug a may be inserted into plug B, so we need to pay attention. If this situation will cause serious consequences (non simple alarm, destructive), must choose a and B interface as different types of socket.

Reliability of connectors: connectors are used to connect signals, so the connection parts should be reliable (for example, surface contact is better than point contact, pinhole type is better than leaf spring type, etc.). (

Use environment: when the connector is used in outdoor, indoor, high temperature, high humidity, salt fog, mold, cold and other environments, there are special requirements for the connector.

Versatility: in the process of connector selection, general items should be selected as far as possible, especially between the same series of products. The selection of connector pin layout drawings is universal, which reduces the types of materials, increases the quantity, reduces the cost and reduces the supply risk.

Locking function: in order to prevent the connector from falling off during the matching process and ensure good contact, the connector is required to have locking function.

Cost: cost is also an important factor in the selection process. With the increasingly fierce market competition, it is necessary to comprehensively consider the correct selection of connectors, their own costs and processing costs.

Supply situation: the supply of connectors will be affected by many factors. The supply situation of general connectors is better than that of non general connectors processed by pin, and that of domestic connectors is better than that of foreign connectors.

Plugging frequency.

The external material design of connector pin and bus can better reflect its environmental performance. Because the external environment is extremely complex, only adapt to these complex environment can ensure its performance. Otherwise, it's not easy to use and may be dangerous. At present, there are many kinds of special connectors for harsh environment in connector design. You can choose this kind of connector according to the actual needs, including high temperature resistance, high humidity resistance, corrosion resistance and salt resistance.