Mobile phone connectors are important electronic components in mobile phones. Their quality is directly related to the quality of the mobile phone and its reliability. Most of the after-sales quality problems of mobile phones are also related to connectors. The types of connectors used by mobile phones vary slightly depending on the product. The average number of connectors used is between 5 and 9 (more than 5-10, RF, USB, Audio Jack or DC Jack, Battery Conn, etc.) Some mobile phones use only three RF connectors.) The product types can be divided into internal FPC connectors and board-to-board connectors, externally connected I / O connectors, and batteries, SIM card connectors, and Camera Socket. Wait.   

Affected by the market demand for 4,5G mobile phones and smart phones, the current development direction of mobile phone connectors is: low height, small pitch, multifunction, good electromagnetic compatibility, standardization and customization coexist.   

Classification of mobile phone connectors   

FPC connector   

The FPC connector is used to connect the LCD display to the driver circuit (PCB). At present, 0.4mm pitch products are mainly used, and 0.3mm pitch products have also been widely used. With the recent trend of LCD drivers being integrated into LCD devices, the pin count of FPCs will be correspondingly reduced, and currently there are related products on the market. From a longer-term perspective, in the future, the FPC connector is expected to be integrated with other mobile phone components on the frame of the mobile phone or its LCD module.   

Board to board connector   

The development trend of mobile phone mid-board-to-board connectors is that the pin pitch and height are getting smaller and smaller. At present, it is mainly 0.4mm pitch, which will gradually develop to 0.35mm or even smaller. Subsequent requirements are lower and have Shielding effect. At the same time, the height of the BTB (board-to-board connector) is gradually reduced to 0.9mm.   

I / O connector   

I / O connector is one of the most important access channels in mobile phones. It includes the connection of power and signal. The reduction of volume and standardization of products will be the main direction of future development. At present, circular and MiniUSB connectors are more commonly used. Micro USB connectors for mobile phones are gradually standardized by the European Union and the GSM Association. The current market mainstream is 5pin. Because each mobile phone manufacturer has its own mobile phone solution, The development trend of the combination of standardization and customization of the Micro USB connector. At the same time, the headphone plug connector also has the same development trend. In 2012, MicroUSB will be mainly used as the standard interface for charging. Nokia, Moto, and SEMC mobile phone manufacturers Substantial steps have begun. Later, the connector is required to be thinner, with visual effects and waterproof functions.   

Card connector   

The card connector is mainly 6pin SIM card connector and T-flash connector. The future development direction is mainly to improve the shielding function and thickness with the SIM card connector, to achieve a minimum thickness of 0.50mm, At the same time, card connector products are oriented to multi-functional development, and SIM card connectors + T-flash connectors have appeared in the market.