SMA is an acronym for SubMiniature version A and was developed in the 1960’s.
It uses a threaded interface. 50 Ω SMA connectors are semi-precision, subminiature
units that provide excellent electrical performance from DC to 18 GHz. These high-per-
formance connectors are compact in size and mechanically have outstanding durability.
For phase array radar, test equipment, ILS landing systems and other instrumenta-
tion using phase matching techniques, these SMA connectors for semi-rigid coaxial
cables and the SMA Plug-to-Jack adapter offer a precise and simple means of phase
adjustment for microwave devices. Built in accordance with MIL-C-39012 and CECC
22110/111, SMA connectors can be mated with all connectors that meet these interface
specifications, regardless of manufacturer.
SMA is available both in Standard and Reverse Polarity. Reverse polarity is a keying
system accomplished with a reverse interface, and ensures that reverse polarity inter-
face connectors do not mate with standard interface connectors. Amphenol accomplish-
es this by inserting female contacts into plugs and male contacts into jacks.
• Broadband performance DC to 18 GHz with low reflection stainless steel
construction and ¼-36 threaded coupling.
• Brass SMA available in nickel or gold plating which provides approximately
30% cost reduction with 100 mating cycles.
• Available for .085” and .141” diameter semi-rigid cables and all the standard
flexible cables including double shielded RG-316.
• Phase Adjustable SMA connectors provide ease of mechanical screw adjustments.
• Base Stations
• Cable Assemblies
• Process Controls
Amphenol® RF: 800-627-7100