SMA Connector Characteristics and Details

• SMA male and female diameter:
• SMA female outside diameter is 5/16" (7.9375mm): Accommodates a hex nut (bulkhead nut) with 5/16" nominal outer diameter
• SMA male inside diameter is 5/16" (7.9375mm) (the inside diameter where the threads are).
  

• SMA Gender Determination:  Key Point
  • SMA gender is counter-intuitive: Please observe picture & note it is correct.  
  • The gender is referring to the pins inside--not the threads. SMA male has threads on inside.
  • More details regarding SMA gender determination.

• Other SMA Characteristics and Key Points
• SMA-male is also called "plug" and SMA female connector is also called "jack"
  
• We offer an SMA wrench to assist in installing antennas, cables and adapters with SMA or RP-SMA connector(s).
• SMA-female connector fits items that have an SMA-male connector.
• SMA is a round screw-type connector, with medium-sized, threaded coupling connectors that are rated for frequencies from the lowest (DC) up to 18GHz.
• SMA connectors are not compatible with the common, commercially available Type F coaxial connector. Type F connectors look similar but are of slightly different size and will not pair with SMA or RP-SMA connectors without an adapter.

SMA Adapter Materials Composition: 

• Connector Body: Gold Plated Brass
• Center Contact: Beryllium Copper, Gold Plated
• Crimp Ferrule: Copper, Nickel Plated
• Insulators: PTFE
• Precision machined for low loss in ISO 9001 facilities