PCB terminals are almost inseparable from the electronic devices we can see, from calculators to general-purpose computers, to computers, communication electronics, military weapon systems, as long as there are integrated circuits and other electronic devices. PCB terminals are used for electrical interconnections. In addition to fixing various small parts, it provides mechanical support for fixed assembly of various electronic components such as integrated circuits, realizes wiring and electrical connection or electrical insulation between various electronic components such as integrated circuits, and provides required electrical characteristics. , such as characteristic impedance. At the same time, it provides solder mask pattern for automatic soldering; it provides identification characters and graphics for component insertion, inspection and maintenance.
Plug-in terminals play an important role in the PCB terminals. They are plugged and connected by two parts, one part is pressed and then inserted into another part, which is soldered to the PCB. This bottom mechanical principle, this anti-vibration design ensures long-term airtight connection and reliability of the finished product. The ears can be assembled at both ends of the socket. The mounting ears can largely protect the tabs and prevent the tabs from being placed in a poor position. At the same time, the socket design ensures that the socket can be correctly inserted into the maternal body. The socket can also have an assembly buckle and a locking buckle. The mounting buckles provide a more secure attachment to the PCB, and the locking tabs lock the parent and socket after installation. A variety of socket designs can be used with different mating methods, such as horizontal, vertical or tilted printed circuit boards, etc., depending on the customer's requirements. The PCB terminal block can be either a metric wire gauge or a standard wire gauge. It is the most popular terminal type on the market.
As electronic devices become more complex and require more and more parts, the application range of PCB terminals is becoming more and more extensive. Although China's PCB terminal industry has made great progress, there is still a big gap compared with advanced countries, and there is still much room for improvement and improvement in the future.
