1, SMA connector is a surface mount connector, which is characterized in that the pins are located on the surface of the connector. It is usually used for surface mounting of printed circuit boards to realize the transmission of radio frequency signals.
2.MA connector is a kind of installation adapter, which is used to connect different types of connectors to the same device.
3. So SMA is mainly used for surface mounting to realize the transmission of RF signals; MA is mainly used to connect different types of connectors and realize the transmission of RF signals between different devices.