Types and definitions of connectors in our country

As the structure of the connector is becoming increasingly diversified, new structures and application fields are constantly appearing, and trying to solve the classification and naming problems with a fixed model has become difficult to adapt. Nevertheless, some basic classifications are still valid.

1. Level of interconnection

According to the functions of the internal and external connections of electronic devices, the interconnection can be divided into five levels.

① Internal connection of chip package

② The connection between the IC package pins and the PCB. Typical connector IC socket.

③ The connection between a printed circuit and a wire or a printed board. The typical connector is a printed circuit connector.

④ The connection between the bottom plate and the bottom plate. The typical connector is a cabinet type connector.

⑤ The connection between the device and the device. Typical products are circular connectors.

There is some overlap between the ③ and ④ levels. Among the five-level connectors, the third and fifth-level products have the highest market value, while the third-level products are currently growing faster.

2. The level of connector specifications.

According to the classification of the International Electrotechnical Commission (IEC), connectors are electromechanical components for electronic equipment, and their specification levels are:

family (family) example: connector

Sub-family example: circular connector

type (type) example: DIP type circular connector

style (style) example: 3510-XX

Specification (variant) 2.54mm, 1.27mm, 1.778

3. The definition of connector in our country.

The connector is a component that our electronic engineering and technical personnel often contact. Its function is very simple: to build a bridge of communication between blocked or isolated circuits in the circuit, so that the current can flow, and the circuit can realize the predetermined function. Connectors are an indispensable part of electronic equipment. Observing along the path of current flow, you will always find one or more connectors. Connector forms and structures are ever-changing. There are various types of connectors with different application objects, frequencies, power, and application environments. For example, the connectors for lighting on the court and the connectors for hard drives, and the connectors for igniting rockets are quite different. But no matter what kind of connector, it is necessary to ensure that the current flows smoothly, continuously and reliably. In general terms, what the connector is connected to is not limited to current. In today's rapid development of optoelectronic technology, the carrier of the signal transmission is light in the optical fiber system. Glass and plastic replace the wires in the ordinary circuit, but the optical signal Connectors are also used in the pathways, and their functions are the same as circuit connectors.

In my country's industry management, connectors, switches, keyboards, etc. are collectively referred to as electrical plug-in components, while electrical plug-in components and relays are collectively referred to as electromechanical components.

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