Classification and naming of cable connectors

Due to the increasingly diversified structure of connectors and the emergence of new structures and application fields, it is difficult to adapt to classification and naming problems by trying to use a fixed pattern.

However, some basic classifications are still valid.

1. The interconnection layer is divided into five layers based on the internal and external connection function of the electronic device.
① Internal connection of chip Encapsulation
② Connection between the IC Encapsulation pin and PCB. Typical connector IC socket.
③ Connection between a printed circuit and a wire or printed board. A typical connector is a printed circuit connector.
④ Connection between the baseboard and the baseboard. A typical connector is a cabinet connector.
⑤ Connection between the device and the device. A typical product is a circular connector.
Levels ③ and ④ overlap. Among the five levels of connectors, products with the highest market volume are those with the 3th and 5th levels, and products with the fastest growth at present are those with the 3rd levels.

2. Layers of connector specifications. According to the International Electrotechnical Commission IEC) classification, connectors belong to the mechanical and electrical components for electronic equipment, its specifications are:
Class family) Example: Connector
Sub-family) Example: circular connector
Type) Example: YB circular connector
Style) Example: YB3470
Type variant)

3. In China's industry management, connectors, switches, and keyboards are collectively referred to as electrical connectors, while electrical connectors and relays are collectively referred to as mechanical and electrical components.

4. Category of the connector. Although the division of the connector product type is somewhat chaotic, technically, there are only two basic division methods for the connector product category: ① according to the shape structure: Circular and rectangular cross-section ), ② working frequency: low frequency and high frequency are bounded by 3 MHz ).

According to the above division, the coaxial connector is circular, and the printed circuit connector is a rectangle. Historically, the printed circuit connector is indeed isolated from the rectangular connector to form its own class ), the section of the popular rectangular connector is trapezoid, which is similar to a rectangle. The division of low frequency and high frequency is basically the same as that of radio waves based on 3 MHz.

There are many different types of other categories based on purposes, installation methods, special structures, and special performance, which often appear in publications and manufacturers' promotional materials, however, it is generally only for the purpose of highlighting a specific feature and purpose. The basic classification still does not go beyond the preceding division principles.

Considering the technical development and actual situation of the connector, the connector can be divided into the following categories based on its versatility and related technical standards): ① low frequency circular connector; ② rectangular connector; ③ Printed Circuit connector; ④ RF Connector; ⑤ optical fiber connector.

5. Name the connector model. The connector model name is the basis for customer procurement and the manufacturer to organize production. In the connector industry at home and abroad, there are two ways to name a product model: one is to use a letter code plus a number, and strive to reflect the main structural characteristics of the product in the model name. The advantage of this method is that it is easy to identify, but the arrangement is too long and too complicated. With the miniaturization of the connector, it brings a lot of difficulties to printing. This method is still popular in China, and some industry standards and even made in the national standard, such as SJ2298-83 Printed Circuit connector), SJ2297-83 rectangular connector), SJ2459-84 band cable connector), GB9538-88 band cable connector) and so on. Due to the increasingly diversified connector structures, it is increasingly difficult to use a naming rule to cover a type of connector in practice. Another idea is to use Arabic numerals. The advantage of this method is that it is concise and easy to manage computers and print the logo of small products. Major connector manufacturers in the world currently use this method. It is expected that manufacturers will gradually replace the naming rules defined by the whole industry under the planned economy system by formulating naming rules that reflect their own characteristics.