Custom RF Cable Assemblies

High-Performance RF Cable Assemblies Engineered for Demanding Applications

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Custom RF Cable Assembly Capabilities

EI Sales provides high-performance RF cable assemblies engineered to meet the electrical, mechanical, and environmental demands of critical systems. Our team supports you from initial concept through production, helping you select the right materials, impedance specs, shielding, and connectors to ensure signal integrity and performance.

We support a wide range of configurations:

  • Coax types: RG, low-loss, semi-rigid, micro-coax

  • Connector options: SMA, MMCX, BNC, TNC, N-type, U.FL

  • Impedance-matched and phase-matched assemblies

  • Overmolded, strain-relieved, and right-angle designs

Every assembly is fully tested for continuity, insertion loss, and impedance to ensure field readiness. At EI Sales, we offer more than components, we provide integration-ready RF solutions tailored to your performance goals, with support spanning design through final test.

Built for Demanding Environments

Our RF cable assemblies are designed and tested for use in mission-critical environments where signal stability and mechanical integrity are non-negotiable. Inside sterilized surgical instruments, and factory-floor control cabinets, EI Sales provides assemblies that meet tight tolerances and harsh-duty requirements. 



Assemblies can be specified to withstand wide temperature ranges, vibration, chemical exposure, and moisture ingress, with optional IP-rated sealing or braided shielding for added protection. We also offer low-PIM solutions for high-frequency and interference-sensitive environments. 

Lastly, every assembly is manufactured with quality in mind, including 100% testing for continuity, insertion loss, and VSWR. When reliability is the baseline, EI Sales delivers cables that perform under pressure.

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RF Assemblies Tailored to Your Application Needs

No two applications are alike. EI Sales works closely with engineers, program managers, and sourcing teams to provide custom RF assemblies tailored to system-level performance and integration requirements. 

Our solutions include:



  • Medical: Miniature coax for telemetry and imaging, biocompatible options

  • IOT: Quick uptime and high volume production capability to support volatile demands 

  • Industrial: Durable assemblies for control cabinets, machinery, and robotics

For projects with tight routing constraints, impedance matching, or shielding challenges, we provide expert guidance on layout, connector interface, and cable selection. We’ll help you create RF assemblies that are ready for deployment, not just bench testing

What our partners say

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I just wanted to let you know that the five prototypes of the Glove 3.0 Main Board you built worked great. No errors and completely functional. Another exceptional job.  Please let everyone know that this is why I use Ninja for our prototypes. I believe you have or will be receiving the P.O. for the remaining 25 units.


ROY WEAVER

Traxton

LATEST NEWS

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A Guide to Circular Connectors

By EI Sales • November 21, 2025
At EI Sales, we support OEMs by helping engineers and sourcing professionals evaluate connector options that match their application requirements.
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Building Stronger Customer Relationships in Sales

By EI Sales • November 21, 2025
In the electronics industry, relationships are more than a nice-to-have. They are the driving force behind innovation, successful design cycles, and long-term partnerships.
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The Future of Innovation in PCB Designs

By EI Sales • November 21, 2025
At EI Sales, we work at the intersection of design, manufacturing, and engineering, and we are seeing firsthand how PCB innovation is transforming the future of electronics.
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Why Choose EI Sales for RF Assemblies

EI Sales combines technical expertise, responsive service, and a vetted supply chain to deliver reliable RF cable assemblies with confidence. With decades of experience supporting design engineers and OEMs across regulated industries, we understand the stakes of poor connectivity and failed signal integrity.



Through a collaborative approach, you move beyond catalog ordering to specify solutions tailored to your system’s electrical, environmental, and production requirements. Our team provides hands-on sourcing guidance, connector and cable compatibility insights, and ensures every part is built to spec and delivered with traceability. EI Sales is your RF cable partner for both new design validation and production scaling, delivering performance, reliability, and peace of mind.

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