Description

QMA CONNECTORS

Jaw-Dropper QMA connectors are available with 50-ohm impedance and the frequency range extends up to 18 GHz. The QMA connector shares the same internal construction and performance as the SMA series. Yet, the SMA connectors offer an easier, faster, and safer operation because of the innovative coupling mechanism, helping customers save significant time during production. The main difference lies in the interface: QMA connectors feature a 360º rotating snap-on locking characteristic instead of a threaded coupling, which enables it quick to install with low RF leakage and is tool-less. QMA connectors are commonly used in cellular base station hardware, SCADA radios, and a range of wireless test equipment, where durability, strength, and quick-disconnection features are required. SMA connectors can be rotated 360 degrees after they are mated, which improves the flexibility of installations.

FEATURES AND BENEFITS

Snap-on interface for quick and easy installation
High power handling capability
Rotatable 360° after connection for flexibility with installation

APPLICATIONS

Antennas
Base Stations
GPS

QMA CONNECTOR SPECIFICATIONS

QMA Connectors Specifications – 50Ohm
Impedance	50 Ohm
Frequency Range	DC – 18 GHz
Voltage Rating	335 Volts RMS Continuous
Dielectric Withstanding Voltage	1000 VRMS Max
VSWR (Return Loss)
DC – 3 GHz	1.052 (-32 dB) Max
3 – 6 GHz	1.12 (-32 dB) Max
Insulation Resistance	5000 MΩ Min
Center Contact Resistance	2.5 mΩ Max
Outer Contact Resistance	3.0 mΩ Max
RF Leakage	-120 dB Max (DC – 3 GHz)
Insertion Loss	.06 √(f(GHz)) dB Max
Power Handling	75 W @ 10 GHz @ 25ºC