How to understand SMD connectors?
In daily life, people use connectors frequently. Moreover, there are many types of connectors, such as circular connector, rectangular connector, square connector, custom connector and so on. In addition, according to the connection mode, there are: board to board connector Wire to board connector . wire to wire connector.
Since the 1950s, surface welding installation technology (SMT) has been widely used by a few manufacturers, but SMT connectors have attracted the attention of manufacturers and been widely used in the past few years. Because people used to face the technical problems of SMT connectors and didn't realize that patch connectors have an obvious effect on saving board area. Later, people gradually found that patch technology has the characteristics of improving production efficiency, reducing cost, reducing board area and improving design flexibility.
Patch connectors are divided into horizontal patch connectors and vertical patch connectors.
SMT is usually installed on assembly parts without lead leg or short lead surface. The solder paste shall be printed on the circuit board first, then installed by the mounter, and then fixed by reflow soldering.
Dip welding is a direct plug-in packaging equipment, which mainly adopts peak welding or manual welding to fix the equipment.
The patch connector is composed of plastic parts and pin pins. The materials of plastic parts are generally PA6T and PA9T, both of which are high temperature resistant materials, and the furnace passing temperature is above 260 ° for 3-5s. Moreover, the materials of pin are generally brass, bronze, phosphor bronze, etc., while the coating is generally gold-plated or tin plated. The coating of pin needle is used to resist oxidation, improve conductivity and improve signal transmission speed. For example, the DC charging gun of new energy vehicles, which is the connector between the vehicle and the charging pile, must be absolutely safe to ensure good charging performance, safety and waterproof. Because it is a consumable, it must be durable and have excellent insulation, flame retardant, high temperature resistance and other properties to ensure the safety of people's lives and property. Therefore, patch connector is an indispensable part in its production.
Patch connector and Wire to board connector It can be widely used in highway cameras, three-dimensional DC fans, charging guns for new energy vehicles, laptops and other fields.
Shenglan Technology Co., Ltd_ It focuses on the production of electronic connectors and research and development of precision components. Its products are widely used in consumer electronics, new energy vehicles, USB, 5g and other fields. Its industrial lines cover the Pearl River Delta, Southeast Asia and other regions. It has established long-term strategic cooperation relations with well-known enterprises such as Foxconn, Lixun precision, Huawei, Xiaomi, TCL, Hitachi Group, BYD and Great Wall Motors, with IATF 16949, ISO9001 ISO14001, QC080000 and other system certification and product safety certification, and provide professional connection and manufacturing solutions for the industry http://jctc.com.cn/
