The QMA connector adopts a fast and easy push-pull connection method and is a low-frequency connector that can replace the SMA threaded connector. This connector was developed as an alternative to the SMA threaded connector and is one of the most popular coaxial connectors currently in use. Its performance is comparable to that of SMA threaded connectors, but it is faster to install and disassemble, and has a higher density.
RF Coaxial QMA Male Plug Crimp Connector for LMR240 Coaxial Cable
Overview
RF coaxial adaptor has high reliability, strong vibration resistance, mechanical and electrical characteristics of excellent performance. It is widely used in vibration and environment under the condition of radio equipment and instrument , ground launch system, and it can join all kinds of coaxial cables.
Electrical Characteristics
| Name |
QMA male connector for LMR240 Cable |
|
Impedance |
50Ω |
|
Frequency range |
0~6GHz |
|
Vibration |
100m/S2 (10~500Hz) |
|
Insertion Loss |
≤ 0.15dB/6GHz |
|
VSWR Straight Rigth Angle |
≤ 1.2 ≤ 1.3 |
|
Contact resistance -center contact -outer contact |
≤0.5mΩ ≤1.5mΩ |
|
Insulation resistance |
≥10000MΩ |
|
Temperature range |
-55°C~+155°C |
|
Durability(matings) |
>500 |
Construction
|
Piece part |
Material |
plating |
|
Body |
Brass |
Nickel plated |
|
Center conductor |
Brass or Phosphor Bronze |
Gold or silver plated |
|
Crimping suite |
Copper alloy |
Nickel plated |
|
O-ring sealing |
6146 silastic |
|
|
Insulator |
PTFE |
Note: We can provide other materials and plating specifications according to customers'requirements Male TNC Type Plug RF Connector
