SMA Female To TNC Female Panel Mount RF Adapter:
Features, Applications And Selection Guide
Learn how an SMA female to TNC female panel mount RF adapter combines 50 ohm impedance, DC to 11 GHz performance and bulkhead mounting for wireless communication, antenna, GPS, satellite, RF testing and industrial wireless systems.
Quick Product Introduction
| Product Name | SMA to TNC Panel Mount Adapter |
| Premier Cable P/N |
PCM-SHM-0041 |
| Connector A | TNC Female |
| Connector B |
|
| Structure Type | Bulkhead Panel Mount |
| Impedance | DC~11 GHz |
| Recommended Mounting Hole | Ø12.8±0.03 mm |
| Application | RF signal connection, panel feedthrough and interface conversion |
PCM-SHM-0041 VS standard SMA to TNC straight-through adapter
| Comparison Item | PCM-SHM-0041 | Standard SMA to TNC Inline Adapter |
| SMA to TNC Conversion | Yes | Yes |
| Fixed Panel Installation | Suitable | Not Intended |
| External Interface Access | More Suitable | Limited |
| Installation Stability | High with Proper Mounting | Depends on Connection |
| Reduced Internal Connector Mating
|
Yes | No Dedicated Design |

What Is an SMA to TNC Panel Mount RF Adapter?
An SMA to TNC panel mount RF adapter is a passive 50 ohm coaxial adapter designed to provide reliable RF signal conversion between SMA and TNC interfaces while supporting panel or enclosure feedthrough installation.
PCM-SHM-0041 can be represented as:
SMA Interface → SMA End → 50 Ohm Coaxial Transmission Path → TNC Panel Mount End → External RF Device / Antenna.
Its main function is:
To convert an internal SMA RF interface into a fixed external TNC interface while maintaining a 50 ohm coaxial transmission path. The bulkhead mounting structure also improves interface stability and equipment integration.
Product Structure and Operating Principle
The SMA to TNC panel mount RF adapter consists of a TNC female connector, SMA female connector, internal coaxial structure and bulkhead mounting section.
Both ends use threaded coupling for 50 ohm RF systems The center conductor, dielectric and outer conductor form a continuous coaxial path to help reduce RF reflection and loss.
The adapter passes through a Ø12.8 ±0.03 mm panel cutout and is secured with a nut RF signals travel from the SMA side to the TNC side, while the outer conductor provides return and shielding paths.

Frequently Asked Questions about SMA to TNC Conversion
Core Product Value

PCM-SHM-0041
The core advantages of PCM-SHM-0041 can be summarized as:
◆ Efficient Interface Conversion
The adapter integrates SMA female and TNC female interfaces in one component, reducing the complexity of multi-stage conversion Its 50 ohm coaxial design supports compatible communication, antenna and test systems while helping maintain impedance continuity.
◆ Wideband RF Transmission
With an operating range from DC to 11 GHz, the adapter supports a wide variety of RF applications from low frequencies to microwave bands. Actual system performance should still be verified with the connected cables, connectors and equipment.
◆ Stable Panel Installation
The bulkhead structure allows the adapter to be securely mounted on an equipment panel or enclosure This helps reduce mechanical stress on internal RF components while supporting cleaner interface management, maintenance and modular equipment design.
◆ Compact Reliable Design
With an overall axial length of approximately 29.5 mm, the adapter combines interface conversion and panel mounting in a compact form Insulation resistance above 5000 MΩ helps maintain electrical isolation between the center and outer conductors.

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Compatibility Statement
Interface Frequency and Impedance Compatibility
- Before purchasing, verify connector gender, system impedance and operating frequency This adapter uses SMA female and TNC female interfaces and is designed for 50 ohm RF systems Although rated from DC to 11 GHz, actual RF performance also depends on cables, equipment ports and other connectors in the signal path.
Installation Performance Environment Verification
- Before installation, verify the Ø12.8 ±0.03 mm panel cutout, panel thickness, mounting clearance and tool access If the application requires specific VSWR, insertion loss, return loss, temperature, waterproofing, vibration resistance, materials or plating, confirm the relevant specifications and test data with the manufacturer.
How to Select an SMA to TNC Panel Mount Adapter ?
Confirm Interface and Impedance
Confirm connector type, gender and impedance first This adapter uses SMA female and TNC female interfaces and is designed for compatible 50 ohm RF systems.
Verify Frequency and RF Performance
Select the adapter according to the required operating frequency It supports DC to 11 GHz, while cables, ports and other connectors must also meet the target frequency.
Confirm Mounting Dimensions
The recommended panel cutout is Ø12.8 ±0.03 mm. Also verify panel thickness, internal clearance, connector space, mounting nut position and tool access.
Confirm Performance and Environment
For precision RF or special environments, verify VSWR, insertion loss, power handling, materials, plating, protection rating, temperature and vibration requirements.
Customization Capabilities
↕ Connector Combination Options
Different male and female combinations of SMA, TNC and other RF connectors can be customized to match specific equipment interfaces.
□ Panel Mount Design
Bulkhead thread length, nut structure and mounting method can be customized to better match equipment panel designs.
◉ Mechanical Dimension Options
Key mechanical dimensions can be evaluated and adjusted according to drawings, panel cutouts and available installation space.
⚙ Material Plating Options
Connector materials, surface treatments and plating options can be evaluated according to environmental and electrical requirements.
⌘ RF Performance Targets
Operating frequency, VSWR, insertion loss and other RF targets can be evaluated with appropriate test requirements.
◇ OEM Production Support
OEM customization and volume production are available with labeling, packaging, drawing control and batch consistency support.
Conclusion:
PCM-SHM-0041 is an SMA female to TNC female panel mount RF adapter integrating interface conversion, 50 ohm signal transmission and bulkhead mounting. It supports DC to 11 GHz, insulation resistance above 5000 MΩ and a recommended Ø12.8 ±0.03 mm panel cutout.
It is suitable for communication, antenna, GPS, RF test and industrial wireless equipment. Connector gender, impedance, frequency and mounting dimensions should be verified before selection, with OEM customization and volume production available.
Product FAQ
Is It Compatible with All SMA and TNC Devices ?
Not always. Verify connector gender, 50 ohm impedance, frequency range and mounting conditions before use.
What Are the Impedance and Frequency ?
The adapter is designed for 50 ohm systems and operates from DC to 11 GHz. The complete RF path must also support the required frequency.
What Mounting Dimensions Should Be Checked ?
The recommended cutout is Ø12.8 ±0.03 mm. Also verify panel thickness, nut position, internal clearance and tool access.
What Should Be Checked for High Frequency Use ?
For high frequency use, verify VSWR, insertion loss, return loss and impedance continuity across the complete RF system.
Can the Interface and Structure Be Customized ?
Connector combinations, bulkhead structure, dimensions, materials, plating and RF performance can be evaluated for customization.
Can It Replace an SMA to TNC Cable ?
Not always. Panel adapters suit fixed feedthrough installations, while RF cable assemblies are better for flexible routing and longer connection distances.





