The SMA connectors (SubMiniature A) are the most used in microwave applications (communications, satellite, measurements, …). It is a precision connector and as such, has features that make it reliable, robust, with high stability and low ROE. It belongs to the group of microcoaxial with threaded coupling. It can be used even above 18 GHZ (maximum 24 GHZ). The general impedance is 50 Ω.
SMA coaxial connectors
We have different versions of SMA coaxial connectors: panel, with dielectric extended, aerial, for surface mounting (SMD), for printed circuit (PCB), applications microstrip, planar… And as for the assembly of the cable we have versions for welding, Crimp… for flexible and semi-rigid cables.
Standard: IEC 169-15 
SMA Connectors Catalog
