QMA/EIA Connectors

RF Coaxial Hexagonal Female QMA Connector for Cable

Features:

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

    ROHO
  • Product Origin:

    China
  • Shipping Port:

    Shenzhen
  • Lead Time:

    7-17days

RF Coaxial Hexagonal Female QMA Connector for Cable

 

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 up to 18 GHz. Because of the innovative coupling mechanism, a 360-degree butt joint is maintained resulting 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.

 

Specifications

ELECTRICAL DATA  
Impedance                                                                   50Ω
Frequency range DC-6GHz optimized / DC-18GHz working range(interface)
Dielectric withstanding voltage (at sea level) 1000Vrms,50Hz 
Working voltage 480Vrms,50Hz
Contact resistance Inner conductor: 3mΩ
Outer conductor: 2.5mΩ
RF leakage 0-3GHz  -80dB / 3-6GHz  -70dB 
Reture loss (typical) DC -3GHz 32dB / 3-6GHz  25dB 
MECHANICAL DATA  
Engagement force 25N
Disengagement force 20N
Retention force for interface 60N
Durability (matings) 100
Distance between connectors 12.4mm 
ENVIRONMENTAL DATA  
Temperature range -55°C  to +155°C 
MATERIAL DATA  
Bodies Brass--Ternary alloy plating
Solder bodies Brass--Ternary alloy plating
Pin contacts Brass--Ternary alloy plating
Socket contacts Spring bronze--Ternary alloy plating
Outer contacts Spring bronze--Ternary alloy plating
Insulator PTFE
Crimp ferrules Copper--Ternary alloy plating

 

Applications

  • GPS
  • Base Stations
  • Antennas
  • Related Products

 

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