Five development trends of electrical connector components

The demand for China's electrical connector market has maintained rapid growth in recent years, and the emergence of new technologies and new materials has greatly promoted the application level of the industry. The main trends are:

One is the miniaturization and chipping of the size and size. For example, 2.5Gb/s and 5.0Gb/s wireless product connectors, fiber connectors, broadband connectors, and the like, which have heights as low as 1.0mm to 1.5mm, appear on the market. Fine pitch connectors (pitch 1.27mm, 1.0mm, 0.8mm, 0.5mm, 0.4mm, 0.3mm).

Secondly, the press-fit contact technology is widely used in the cylindrical slotted jack, the elastic stranded pin and the double-curved wire spring jack connector, which greatly improves the reliability of the connector and ensures the high fidelity of signal transmission. .

Third, semiconductor chip technology is becoming a technological driver for the development of connectors in all levels of interconnection. For example, with a 0.5mm pitch chip package rapidly moving toward 0.25mm pitch, the number of device pins for Class I interconnects (internal to IC devices) and Class II interconnects (device to board interconnects) is hundreds of lines up to several thousand line.

Fourth, the blind matching technology makes the connector constitute a new connection product, namely the push-in connector, which is mainly used for system level interconnection. Its biggest advantage is that it does not need cables, it is easy to install and disassemble, it is easy to replace on site, the insertion speed is fast, the separation is smooth and stable, and good high frequency characteristics can be obtained, which is suitable for spacecraft.

Fifth, assembly technology has evolved from plug-in mounting technology (THT) to surface mount (SMT) technology to micro-assembly (MPT) technology. The active adoption of microelectromechanical systems (MEMS) is a source of power for improving connector technology and cost performance.

In terms of switches, switches will be miniaturized, thinned, chipped, composited, versatile, high-precision, and long-life, and they require continuous improvement in heat resistance, detergency, sealing, and environmental resistance. And other comprehensive performance. They can be used in various fields, such as CNC machine tools, keyboards, etc., and further replace other on/off switches, potentiometer encoders, etc. with electronic device circuits. In addition, the development of new materials technology is also one of the important conditions to promote the technical level of electrical connectors. At present, among the products developed in China's electrical connector components industry, the following key common technical problems exist: First, high-elastic contact materials, wire spring materials, nano materials, memory functional materials, environmentally-resistant engineering plastics, and other new metals/non- The application technology and research of metal materials can not keep up with the actual needs of manufacturing; the second is new professional process technology, micro-machining and manufacturing technology, automated comprehensive testing technology, reinforcement technology and experimental technology under special environmental conditions, and structural optimization design technology. Reliability design technology, hybrid structure design technology, etc. need to meet the requirements of electrical connector components with increasingly complex structures, increasingly powerful functions, and smaller and smaller volumes.