Because the mobile phone is more and more miniaturized, user groups have become more and more popular, the production of more and more large, so the mobile phone used components, package includes connector inside, put forward more and more strict requirements.
Microminiature mobile phone size and weight significantly decreased, increased functionality, need high density assembly and interconnection. Obviously requires that its internal components ( including connector inside ) have become smaller, or they are integrated into the chip or circuit module. Miniaturization is the route one must take.
Multi function interface for the user easy to use, but also for the design and manufacture of mobile phone is simplified, mobile phone external interface number less. It does not use the door face many various interfaces and not know what course to take. So the requirements of mobile phone 's interface connector of multifunctional, it can be low frequency, high frequency coaxial port and other contacts with the different characteristics of composite in one interface, to meet different application requirements in connection. At present, the lower end of the mobile phone one by export has can be used for connecting the charger, microphone, earphone or hands-free support different external equipment.
Simple user group the popularity of mobile phone, requirement of use must be simple and clear, must be intuitive, the connector also has the same requirements. Cases such as SIM cards installed, install the battery, connect the charger must be simple, a look will be. At the same time, security, to prevent incorrect operation, preventing inverse insertion or wrong hole. However, these interfaces to the user is more simple, the connector design and manufacturing technology requirement taller and more complex.
High speed transmission and electromagnetic compatibility because the mobile phone function development, from a single language communication tools, gradually developed into a data device, some users hope that the mobile phone can not only carry out the network communication, but also with other equipment such as computers, PDA ( personal digital assistant ), together with the printer. All these require higher data transmission speed and good anti jamming. The traditional interface connector can not meet these requirements. In recent years the present high speed USB ( Universal Serial Bus ) and IEEE1934 interface connector, so that the mobile phone and computer and other devices connected to become easier.