There are many kinds of connectors, which can be divided into: circular connectors, rectangular connectors, square connectors, customized connectors, etc. In the form of contact termination: crimped welding winding; Screw (cap) fixed; According to the connection method, it can be divided into: board to board connector (BtoB) Wire to board connector (WtoB) Wire to wire connector (WtoW) Today we talk about the patch connector in the wire to board connector.
Surface mount technology has been used by some manufacturers since the 1950s. The use of patch connectors has only recently begun and has gradually been paid attention to by manufacturers. This situation stems from the technical problems faced by SMT connectors and the lack of awareness that patch connectors can effectively save board area. As people found that patch technology can improve production efficiency, reduce the cost of manufacturers, reduce the board area, improve the flexibility of the design, patch connectors have been widely used.
SMT connectors are divided into: Recessed connector (SMT) and vertical connector (DIP) SMT usually installs components without leads or short leads. It requires solder paste to be printed on the circuit board first, and then mounted by the SMT machine, and then reflow fixed components. Dip welding is a device packaged in the form of in-line, and the device is fixed by wave soldering or manual welding.
SMT connector temperature over 260 3-5s. The composition of the patch connector: plastic parts and pin pins, plastic parts generally use PA6T and PA9T, both of which are high temperature resistant materials. Highway cameras usually use conversion connectors, three-dimensional DC fans, 0x9B9C]0x9B9C] air conditioners, high-definition LCD TVS, notebook smart and other fields. The pins are usually made of brass, bronze, phosphor bronze, etc. The coating is generally gold (half gold) or tin plating. The coating function of the needle is to resist oxidation, improve electrical conductivity, and improve the transmission speed of electrons.