SMA connectors, short for SubMiniature Version A, are semi-precision, subminiature devices that provide repeatable electrical performance from DC to 12.4 GHz with flexible cable. SMA connectors feature screw-type coupling. Semi-Rigid cabling extends the frequency range of the device to 18GHz.

SMA connectors offer broadband performance with low reflections and constant 50 ohm impedance. These properties, along with minimum attenuation and low VSWR have made the SMA connector extremely popular in the microwave community. 

SMA connectors are designed to conform to MIL-C-39012 specifications.

Technical characteristics
Temp.range.....................-65～ +165 ℃(PE Cable -～ +85)
Vibration........................ MIL-STD-202,Method 213
Impedanec......................50Ω
Frequency Range.............DC～12.4GHz(0～18GHz)
Working Voltage..............335V max
Withstand Voltage.......... 1000V rms
Contact resistance
Center Contact................≤3mΩ
Outer Contact..................≤2mΩ
Insulation resistance.........≥5000 mΩ
Insertion loss ..................≥0.15 dB/6GHz
VSWR  Straight...............≤1.10+0.002f
                                       ≤1.05+0.001f
        Right angle .............≤1.20+0.003f
                                       ≤1.10+0.001f
 Durability(mating)..............≥ 500 (cycles)

MATERIAL & PLATING
Shell......................Brass ...........  ...........Goldplated
Inner conductor............Beryllium or tin brass .......Goldplated
Insulator .................PTFE
Crimping suite.............Copper alloy .................Nicked or goldplated
o-ring sealing ............6146 silastic

APPLECABLE STANDARD
MIL-C-39012;
CECC 22110;
IEC 60169-15