The FPC connector principle
FPC translation into Chinese is: flexible printed circuit board, commonly speaking, is made of soft material (can fold, bend material) PCB) connector for LCD display to drive circuit (PCB) connection, mainly 0.5mm pitch products. The 0.3mm pitch products have also been widely used.
With the trend of LCD drivers to be integrated into LCD devices, the number of FPC pins will decrease accordingly, and there are already related products on the market. In the longer term, FPC connectors are expected to be integrated with the phone or other LCD modules.
The products are mainly used in a variety of digital communication products, portable electronic products, computer peripheral equipment, measuring instruments, automotive electronics and other fields, such as mobile phones, digital cameras, notebook computers, MID, MP345, handheld game console, sound system, etc.
FPC connector, contact installation height of 3mm printed circuit board, lower, flip lock (one-touch rotation system), prevent shedding and oblique mating of FPC, elastic needle design, available at zero intermediate frequency and non-ZIF, available at 0.3,0.5,1.0, and 1.25mm midline existing tin lead or lead-free surface mount, four holes, vertical and right angle available stack top or bottom contact.
The fpc connector feature
The fpc connector should be smaller, because many products face smaller and concise opening, the use of fpc connector requirements will be more precise, such as the most commonly used line to the board to choose small distance 0.6mm and 0.8mm, high density, high-speed transmission, high frequency direction open. Miniaturmeans that the fpc connector base distance is smaller, and the high density is the large core number.
The total number of dense fpc connectors is 600 cores, and special equipment can reach up to 5000 cores. High-speed transmission refers to the modern computer, information skills and network skills demand signal transmission rate up to megahertz frequency band, the pulse time to sub-milliseconds, so begged a high-speed transmission fpc connector. High frequency is for the learning millimeter wave skills open, RF coaxial connector has entered the millimeter wave operation frequency band.
Structural principle of the FPC connector
Often deal with the fpc connector users, understand some fpc connector structure principle knowledge is very necessary, so the structure principle of the fpc connector is how, the following small series to popularize the fpc connector structure principle of this aspect of the content.
FPC connector can realize thin shape, and in order to inhibit the occupation area of the connector, and seek miniaturization, high frequency signal transmission connector, this connector consists of four parts, respectively, is the glue core, tongue piece, terminal, welding piece, the following is the four parts of the knowledge explanation;
1. The function of FPC connector adhesive core is to protect terminals, insulation, guide positive during connection, provide mechanism strength, etc. The manufacturing process of FPC connector adhesive core is generally using injection molding process, and the material is mostly PA9T material.
2. The function of FPC connector tongue is to press line, insulation, guide during connection, provide mechanism strength, etc. The manufacturing process of FPC connector tongue is generally using injection molding process, and the material makes PA10T and PPS material.
3. The function of FPC connector terminal is the conductor transmission of electronic signal, the manufacturing process is to use stamping + electroplating process (gold or tin plating, improve the welding ability of the product), the material uses phosphorus bronze C5191 material.
4. The function of FPC connector welding sheet is component positioning, fixation, strength increase, etc. The manufacturing process also uses stamping + electroplating process (gold or tin plating to improve the welding ability of the product), and the material uses bronze C2680 material.
