QMA connectors
QMA connectors are push-on coaxial RF interfaces designed for fast connection in compact assemblies. This category includes QMA male and female connectors for reliable RF signal transmission in space-constrained applications.
Order code: QMA-01
Huber+Suhner 11_QMA-50-2-2/133_NH
Crimp QMA male coaxial connector for RG316 / RG174 / LMR100
Stock: 46 pcs
Order code: QMA-02
Huber+Suhner 16_QMA-50-3-4/133_NH
Right angle crimp QMA male coaxial connector for per S_03262_B-60 / SX_03272_B-60
Stock: 58 pcs
Order code: QMA-03
Huber+Suhner 16_QMA-W50-4-5/133_NH
Crimp right angle QMA male coaxial connector for LMR-240 / LLF240 / SPUMA_240
Stock: 9 pcs
Order code: QMA-51
Huber+Suhner 24_QMA-50-2-3/133_NH
Bulkhead crimp QMA female coaxial connector for RG316 / RG174 / LMR100
Stock: 100 pcs
Order code: QMA-60
Huber+Suhner 96_QMA-50-0-1/111_NH
PCB mount QMA female coaxial connector
Stock: 98 pcs
Overview
QMA connectors are push-on coaxial RF connectors developed as a quick-mating alternative to SMA interfaces. They maintain similar electrical performance while enabling faster assembly and reduced installation time.
Configurations
- Male and female QMA interfaces
- Cable connectors for flexible and semi-rigid coax
- PCB-mounted versions (edge and vertical)
- Panel-mount options
Technical characteristics
- Push-on coupling mechanism (no torque required)
- Impedance: 50 ohm
- Frequency range dependent on design and cable type
- Compact form factor derived from SMA geometry
Applications
- RF modules and embedded systems
- Antenna connections in dense layouts
- Automotive and industrial electronics
- Test and measurement setups requiring frequent connections
FAQ
What is the main difference between QMA and SMA connectors?
QMA connectors use a push-on coupling instead of a threaded interface, allowing faster mating and unmating while maintaining comparable RF performance.
Are QMA and SMA connectors mechanically compatible?
No. Although they share similar dimensions, QMA and SMA interfaces are not mechanically mateable.
Do QMA connectors support repeated mating cycles?
Yes, they are designed for frequent connections, but durability depends on the specific product and application.
Are QMA connectors suitable for vibration-prone environments?
They are suitable for many industrial uses, but secure retention should be evaluated in high-vibration conditions.
Can QMA connectors be used on PCB assemblies?
Yes, QMA connectors are available in PCB-mount configurations for RF boards.
How do I choose the correct QMA connector?
Selection depends on cable type, mounting method, and mechanical constraints of the RF assembly.
For specific configurations or integration requirements, please contact us.