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SMA (SubMiniature version A) connectors are coaxial RF connectors developed in the 1960s as a minimal connector interface for coaxial cable with a screw type coupling mechanism. The connector has a 50 Ω impedance. It offers excellent electrical performance from DC to 18 GHz. Designed in accordance with MIL-C-39012 specifications, Cross RF SMA lineup has one of the most extensive variety of applications including Semi-Flexible/Flexible cable, Receptacle, PCB, and Reverse Polarity option.

Requirements MIL-C-39012 Specifications
Impedance   50Ω
Frequency range   Semi-Rigid Cable : DC-18GHz
Flexible Cable : DC-12.4GHz
Contact current   DC 2.0A max.
Working voltage   Semi-Rigid Cable : 1000V
Flexible Cable : 750V
Contact resistance 3-16 Center contacts : 3.0 mΩ
Outer contacts : 2.5mΩ
Insulation resistance 3-11 5000MΩmin.
Insertion loss 3-27 0.05√f(GHz)dB
V.S.W.R 3-14 ≤ 1.15+0.02f(GHz)
RF leakage 3-26 -60dBm min.between 2~3GHz
Coupling nut torque   12Ncm-170Ncm
Coupling nut retention force 3-25 ≥ 200N
Life 3-15 500 matings.
Contact captivation 3-14 ≥ 27N
Temperature range   -65℃~+125℃

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