SMA

SMA

The SMA series is a very popular coax connector with threaded coupling, and can be used up to frequencies of over 18 GHz (depending on type). The impedance is controlled at 50 Ω. Connector styles are available for flexible, conformable and semi-rigid cable types. Versions of the SMA connector are available for mounting to printed circuit boards using both through-hole soldered and through-hole press-fit techniques, as well as surface mount types (SMD). Solder, crimp and clamp techniques are used to terminate this series to cables. SMA applications include communications, satellite and test equipment. Mating face sealing for SMA connectors between plug and jack (mated) according to IP 68. This classification is a general statement for the relevant series. Individual connectors may deviate from the values shown. If in doubt, please consult our engineers.


Mechanical Characteristics
Durability (mating cycles) ≥ 500
Recommended coupling torque 79 - 113 Ncm
Material: spring contacts CuBe2
Material: solid contact parts standard type CuZn39Pb3
Material: solid contact parts MIL-type (stainless steel) 1.4305
Material: crimp ferrule Cu
Material: serrated lock washer CuSn6
Material: insulators PTFE PTFE
Material: gaskets MVQ
Finish: Inner conductor Cu1Ni2Au1.27
Finish outer conductor: Gold (standard; last digit ...1) NiPAu
Finish outer conductor: MIL gold (last digit ...2) Cu1Ni2Au1.27
Finish outer conductor: Stainless steel (last digit ...6) passivated passivated
Finish outer conductor: Type for printed circuits (last digit ...7) SnPb8
Finish outer conductor: Telealloy (white bronze) (last digit ...8) CuSnZn3 (Telealloy); Ag2CuSnZn0.5 (Optargen)
Finish outer conductor: Nickel (last digit ...9) Cu2Ni5
Finish other metal parts: Gold (standard; last digit ...1) Cu2Ni5Au0.2
Finish other metal parts: MIL gold (last digit ...2) Cu1Ni2Au0.8
Finish other metal parts: Stainless steel (MIL type; last digit ...6) passivated passivated
Finish other metal parts: Telealloy (white bronze) (last digit...8) CuSnZn3
Finish other metal parts: Nickel (last digit ...9) Cu2Ni5
Climatic Characteristics
Climatic category acc. to IEC 60068 - 1 55/155/56
Electrical Characteristics
Impedance 50 Ω
Voltage proof 1 kV/50 Hz
Working voltage ≤ 335 V/50 Hz
Contact resistance inner conductor ≤ 3 mΩ
Contact resistance outer conductor ≤ 2 mΩ
Insulation resistance ≥ 5 GΩ
Frequency range for flexible cable up to 12.4 GHz
Frequency range for semi-rigid cable up to (Straight style) 18.0 GHz
Frequency range for semi-rigid cable up to (Angle style) 12.4 GHz
Return loss flexible cable (straight and angle style) at 1 GHz ≥ 20.0 dB
Return loss flexible cable (straight and angle style) at 2 GHz ≥ 19.2 dB
Return loss flexible cable (straight and angle style) at 4 GHz ≥ 17.7 dB
Return loss flexible cable (straight and angle style) at 6 GHz ≥ 16.5 dB
Return loss semi-rigid cable (straight style) at 1 GHz ≥ 28.5 dB
Return loss semi-rigid cable (straight style) at 2 GHz ≥ 27.5 dB
Return loss semi-rigid cable (straight style) at 4 GHz ≥ 26.0 dB
Return loss semi-rigid cable (straight style) at 6 GHz ≥ 24.9 dB
Return loss semi-rigid cable (angle style) at 1 GHz ≥ 25.7 dB
Return loss semi-rigid cable (angle style) at 2 GHz ≥ 25.2 dB
Return loss semi-rigid cable (angle style) at 4 GHz ≥ 24.2 dB
Return loss semi-rigid cable (angle style) at 6 GHz ≥ 23.2 dB
Standards
IEC 60 169-15
Back to Top