Features & Benefits
  • Operates at the same electrical performance as SMA up to 6 GHz
  • Snap-on interface for quick and easy installation
  • Rotatable 360° after connection for flexibility with installation

How to buy this Product

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 We offer the following standard and custom QMA connectors:



Online Store 2D Drawing
QMA Male for RG58/RFC195/LMR195
QMA Male Right Angled for RG58/RFC195/LMR195
QMA Male for RG8x / LMR240 / RFC240
QMA Male Right Angled for RG8x / LMR240 / RFC240
QMA Male for LMR400 / RFC400 / RG213 / RG8U
QMA for for 1/4 SuperFlex
  • Base Station Equipment
  • Cable Assemblies
  • Amplifiers
Impedance 50 Ω
Frequency Range DC – 6 GHz
Return Loss DC – 3 GHz > 32 dB; 3 – 6 GHz > 25 dB
Dielectric Withstanding Voltage 1,000 V rms, 50 Hz at sea level
Working Voltage < 335 V rms, 50 Hz at sea level
Insulator Resistance > 5,000 MΩ
Center Contact Resistance < 3 mΩ
Outer Contact Resistance < 2.5 mΩ
RF Leakage DC – 3 GHz 80 dB minimum, 3 – 6 GHz 70 dB minimum
Engagement Force 5.6 lbs (25 N)
Disengagement Force 4.5 lbs (20 N)
Retention Force for Interface > 13.5 lb (60 N)
Mating Cycles 100
Distance Between Connectors .49 inches (12.4mm) minimum
Body White bronze over brass
Solder Body Gold over brass
Pin Contact Gold over brass
Socket Contact Gold over beryllium copper
Outer Contact White bronze over spring bronze
Insulator PTFE
Crimp Ferrule White bronze over copper
Temperature Range -40°C to +80°C

Note: These characteristics are typical but may not apply to all connectors.

More Information

For more information about our products, please contact us directly at 301.838.4380 or email us at sales@shireeninc.com

RFC®, Registered trademark of Shireen Inc
LMR®, Registered trademark of Times Microwave Systems

FCC notice: The marketing, sale and use of power amplifiers are governed by and subject to FCC rules & regulations under Part 15.247. Shireen’s ISM band amplifiers are available for export, military, OEM & licensed customers only. It is the responsibility of the purchaser/installer/operator to insure that only approved equipment/systems are deployed. Shireen provides full engineering support to OEMs interested in certified systems.