Key Specifications
Type Design:
Standard
Connection Type:
Between Series
Connector 1 Series:
QMA
Connector 1 Gender:
Plug (Male)
Connector 2 Series:
SMA
Connector 2 Gender:
Plug (Male)
Impedance (Ohm):
50
Body Style:
Straight
Panel Mount:
None
Connector 1 Connection Method:
Quick-Lock
Connector 2 Connection Method:
Threaded (Screw-lock)
Frequency, Max (GHz):
18
Connector 1 Body Material:
Brass
Connector 1 Body Plating:
Copper-Tin-Zinc Alloy
Connector 2 Body Material:
Brass
Connector 2 Body Plating:
Copper-Tin-Zinc Alloy
VSWR, Max:
1.20
Description
QMA Plug (Male) to SMA Plug (Male) | Straight Adapter | Quick-Lock & Screw-Lock | Brass Body
The ROSNOL AD-QA1A15A/944-944 is a precision RF adapter designed for DC to 18 GHz operation with 50 Ω impedance. It achieves VSWR ≤ 1.20 and insertion loss ≤ 0.05√F (GHz) dB, ensuring stable signal transmission and minimal loss. Insulation resistance is ≥5 GΩ, and the adapter supports ≥100 mating cycles on the QMA side and ≥500 on the SMA side. Coupling mechanisms include quick-lock for QMA and screw-lock for SMA, with center contact captivation ≥20 N for secure engagement.The center contacts are beryllium copper with 3 microinch gold plating over an 80 microinch nickel-phosphorus underplating. Bodies and coupling nuts are brass with corrosion-resistant finish, and insulators are PTFE for thermal stability. Recommended torque for the SMA side is 0.56 Nm. The operating temperature range spans −40°C to +85°C, ensuring durability in varied environments.
ROSNOL’s precision-engineered RF adapters deliver reliable performance and cost-effective alternatives to leading global brands. All components are manufactured in ISO 9001-certified facilities and comply with RoHS and REACH standards. Customization for materials, plating, and mechanical design is available to meet specialized requirements.
