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Quick Lock miniature connector, operating in the range DC-6 GHz.
50 ohms / part series R123
QMA was designed in the 2000s. Thanks to its main benefits (easy and quick to install, high density, tool-less), it successfully displaced SMA in telecom infrastructure equipment.
A waterproof version WQMA is also available (part series R123 W).
Radiall is a certified member of the QLF alliance and co-owner of the applicable patents for QMA.


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General :

  • QMA is a Snap-on model ( Quick lock SMA)


  • Impedance : 50Ω
  • Frequency range : DC ~ 6 GHz (DC-18GHz working range)
  • Durability : 100 mating cycles
  • Power rating at 1 GHz : 200W
  • Temperature range : -40°C / +105°C
  • IP68 when mated for Waterproof QMA series


  • The outer diameter of the interface is approx 5.60mm
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