SSMA RF Connectors for Flexible Cable
SSMA RF Connectors for Flexible Cable are miniature threaded coaxial interconnects designed for signal transmission in space-constrained RF and microwave systems. Built on a 50 ohm impedance platform, this connector series supports operating frequencies extending into the millimeter-wave range and is engineered for termination onto flexible coaxial cable, allowing routing in applications where semi-rigid or semi-flexible cable is not practical. The compact shell diameter of SSMA connectors reduces panel footprint and cable bend radius requirements compared with standard SMA interfaces, while retaining a threaded coupling nut for mechanical retention and repeatable mating cycles. Across the category, SSMA connectors are available in multiple termination styles, gender configurations, and body orientations, giving system integrators a consistent interface standard for board-to-cable, cable-to-cable, and cable-to-panel connections within the same platform.
Common Types and Characteristics
| Type |
Configuration |
Typical Characteristics |
| Straight Plug / Jack |
Male or female center contact |
In-line mating, used for direct cable-to-cable or cable-to-connector transitions |
| Right Angle Plug / Jack |
90° body orientation |
Reduces vertical clearance in tightly packed enclosures |
| Bulkhead / Panel Mount |
Threaded front or rear mount |
Provides fixed panel interface with grounding through the shell |
| PCB Edge / End Launch |
Solder or press-fit contact |
Connects flexible cable assemblies directly to circuit board traces |
| Full Detent / Non-Detent |
Center pin retention variant |
Full detent versions add contact retention for repeated mating cycles |
Application Scenarios
SSMA connectors are used in test and measurement instrumentation, RF front-end modules, phased array antenna feed networks, satellite communication terminals, defense electronics, and other systems where multiple RF channels must be routed within limited board or chassis space. Because the connector terminates on flexible cable, it is commonly selected for internal chassis interconnects, module-to-module jumpers, and applications requiring cable flexing during installation or maintenance.
Selection Guide
| Selection Factor |
Consideration |
| Frequency Range |
Confirm the connector interface and cable assembly support the intended operating frequency with acceptable VSWR |
| Cable Type and Diameter |
Match the connector termination to the flexible cable's outer diameter and dielectric structure |
| Body Style |
Select straight, right angle, or bulkhead configuration based on available routing space |
| Gender and Polarity |
Verify mating compatibility with the corresponding interface on the mating device |
| Environmental Requirements |
Consider plating, sealing, and mechanical retention needs for the installation environment |
SSMA vs. Related Interfaces
| Interface |
Coupling |
Relative Size |
Typical Use |
| SSMA |
Threaded |
Smaller than SMA |
High-density flexible cable routing |
| SMA |
Threaded |
Standard reference size |
General-purpose RF interconnection |
| SMP |
Push-on (blind mate) |
Comparable to SSMA |
Board-to-board or blind mate assemblies |
| MMCX |
Snap-on |
Smaller than SSMA |
Compact modules with frequent mating cycles |
FAQ
What does SSMA stand for?
SSMA refers to a sub-miniature threaded RF connector interface derived from the SMA series, reduced in shell size for higher-density applications.
Is SSMA mechanically compatible with SMA connectors?
SSMA and SMA connectors use different shell dimensions and are not directly interchangeable; mating should be confirmed against the applicable interface specification.
What cable types can be used with SSMA connectors for flexible cable?
This category is designed for termination onto flexible coaxial cable rather than semi-rigid cable, with connector and cable diameters matched during assembly selection.
What frequency range do SSMA connectors cover?
Operating frequency depends on the specific connector design and cable assembly, with the SSMA interface generally supporting transmission into the millimeter-wave range.
Can SSMA connectors be customized?
Yes. Termination style, plating, center contact retention, and cable length can be configured according to application requirements.
About Manufacturing and Support
This SSMA connector category is manufactured by Yangzhou Jingcheng Electronics Co., Ltd, a coaxial connector producer established in 1999 with in-house R&D, precision CNC machining, and network analyzer-based RF testing. Production follows GB, MIL-C, and IEC reference standards under ISO9001 and ISO14001 certified processes, supporting both standard and customized SSMA connector configurations for flexible cable applications.
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