Product Pages
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The QMA connector is a quick disconnect version of the SMA connector
and shares the same internal construction, which allows the connector
to have excellent performance. The electrical performance benefits
of the QMA include low loss RF performance up to 6 GHz. Because of
the innovative coupling mechanism, a 360-degree butt joint is maintained
which results in low RF leakage. Since the RF line is identical to
the SMA series, the QMA connectors also offer the same high power
handling capability. This gives the series significant advantages
over other quick disconnect connectors.
Mechanically the QMA series offers a more convenient installation than SMA connectors. Because the interface mates with a snap-on
instead of a threaded coupling, there is a significant time advantage. Typically, these connectors can be installed into a system 10
times faster than an SMA connector. Another benefit of eliminating the threaded coupling is the denser packaging. The pitch between
connector can be reduced because there is no requirement for wrench clearance. Finally, the connectors can be rotated 360 degrees after
they are mated which greatly improves the flexibility of installations.
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Operates at the same electrical performance as
SMA up to 6 GHz |
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Snap-on interface for quick and easy installation
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Rotatable 360° after connection for flexibility
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Base Station Equipment |
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Cable Assemblies |
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Amplifiers |
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930-1XXY-51Z
930: QMA Series
1XX: Sequential Number
Y: Connector Sex
P - Plug
J - Jack
Z: Body Style
S - Straight
A - Right Angle
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Impedance
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50 Ω
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Frequency Range
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DC - 6 GHz
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Return Loss
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DC - 3 GHz > 32 dB; 3 - 6 GHz > 25 dB
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Dielectric Withstanding Voltage
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1,000 V rms, 50 Hz at sea level
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Working Voltage
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< 335 V rms, 50 Hz at sea level
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Insulator Resistance
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> 5,000 MΩ
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Center Contact Resistance
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< 3 mΩ
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Outer Contact Resistance
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< 2.5 mΩ
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RF Leakage
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DC - 3 GHz 80 dB minimum, 3 - 6 GHz 70 dB minimum
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Engagement Force
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5.6 lbs (25 N)
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Disengagement Force
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4.5 lbs (20 N)
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Retention Force for Interface
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> 13.5 lb (60 N)
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Mating Cycles
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100
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Distance Between Connectors
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.49 inches (12.4mm) minimum
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Body
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White bronze over brass
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Solder Body
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Gold over brass
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Pin Contact
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Gold over brass
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Socket Contact
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Gold over beryllium copper
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Outer Contact
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White bronze over spring bronze
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Insulator
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PTFE
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Crimp Ferrule
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White bronze over copper
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Temperature Range
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-40°C to +80°C
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Note: These characteristics are typical but may not apply to all connectors.
*Amphenol RF is a member of the Quick Lock Formula® Alliance.
For further information on the QLF®, visit www.qlf.info.
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