Custom RF Cable Assemblies for Shielding and High-Frequency Signal Transmission
Coax cable assemblies route high frequency signals through coaxial cable types that feature braided shielding, low loss dielectric, and RF-grade connector types.
Coax cable assemblies can range from 216 mm to 30 meters and support flexible, conformable and semi-rigid cable assemblies.
WellPCB is a coaxial cable manufacturer producing custom RF cable assemblies with SMA, BNC, RP-SMA and SMB connectors on 50-ohm or 75-ohm coaxial cables.
Each cable assembly is stripped, crimped, soldered, and inspected to IPC-620, featuring up to 95 dB EMI shielding, verified insertion loss, and full continuity.
- Coax cable assemblies with SMA, BNC, SMB, and RP-SMA RF connector types.
- RF cable assemblies rated for GHz signals and low-loss performance.
- Cable assemblies are built to IPC-620 and ISO 9001, with full test reports.
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ISO9001 ISO13485
ISO14001
IATF
16949
IPC-A-610H International
Certification
Fully Automated
AOI Inspection
Coax Cable Assemblies for Signal Routing and Shielding
Cable assemblies route RF signals between antennas, test ports and PCB modules using impedance-matched coaxial cable and GHz-rated connectors across telecom, defense, and microwave systems.
These assemblies provide shielding integrity, mechanical strain relief and consistent electrical performance across a wide range of RF applications.
WellPCB manufactures custom coax cable assemblies based on client-supplied schematics, cut-length charts, and connector pinouts.
Each assembly is stripped, terminated, and fixture-assembled with specified coaxial cable types, orientation and matched electrical characteristics.
We use flamerated jackets, EMI shielding with a rating of up to 95 dB, and RF connector systems that are qualified for vibration, mating cycles and GHz-range transmission.
Our Coax Cable Assembly Capabilities
WellPCB manufactures coax cable assemblies with process-level control, matched-impedance construction, and RF validation for both prototypes and volume production.
Each build is configured using defined coaxial cable types, certified connector types and GHz-rated shielding systems, all of which are aligned with IPC-620 Class 3 and ISO 9001 process requirements.
These capabilities form the basis of every WellPCB coax assembly, from prototype builds to fully documented, production verified runs.
WellPCB builds coaxial cable assemblies with defined 50-ohm and 75-ohm impedance using verified conductor geometry, connector transitions and shielding layouts.
Each coax cable assembly is validated for VSWR, insertion loss, and group delay using network analysis across the full range of RF frequencies.
Supported types include RG58, RG174, and foam-core coaxial cable types built to maintain signal stability in test equipment and telecom routing.
We produce flexible cable, semi-rigid cable assemblies, and hand formable cable assemblies with outer diameters (ODs) ranging from 0.020” to 0.500” (0.51 mm to 12.70 mm), rated for continuous operation up to 392 °F (200 °C).
These cable assemblies use PE, FEP or PVC jackets and support single or double shielding for EMI protection.
Terminated to SMA, BNC, RP-SMA, or smb connectors, they support tight routing, repeated flexing and shaped coax paths in consumer electronics and test and measurement systems.
WellPCB builds high frequency RF cable assemblies for operation up to 40 GHz, using matched coax structures and low reactance connector pairs.
Each build undergoes insertion loss mapping across the full GHz band and return loss analysis by connector family. Supported terminations include SMA to mhf4, RP-SMA, and 7-16 DIN, all paired with low drift dielectric and jacketed routing.
These assemblies are designed for use with RF analyzers, phased antennas and microwave systems.
Terminations include SMA, RP-SMA, SMB, BNC, MMCX, TNC, Fakra and NMO mounts, available in right angle, bulkhead, or straight profiles.
The N-type connector, originally developed at AT&T Bell Labs, remains a supported option for high durability, outdoor rated assemblies.
Each RF connector is installed using calibrated crimp dies or thermal solder methods, depending on the contact structure and shielding termination path.
All cable assemblies are tested for continuity, mating force and signal isolation. Specialized builds are supported for GPS, CAN bus, and radio frequency I/O ports.
We provide low loss builds using foam PE, PTFE or air dielectric tuned for phase and velocity control.
All dielectric materials are qualified to operate within ±2% impedance variation and are selected based on the required GHz range and power loading.
These systems reduce attenuation in long-run custom coaxial cable assemblies and maintain signal shape in analog pulse systems and RF and microwave routing environments where dielectric loss is a concern.
Assemblies are constructed with single, double, or triple shielding, achieving >95 dB effectiveness, depending on system sensitivity and external EMI risk.
Shield designs include braid-only, foil wrapped, and quad layer structures using copper or aluminum for GHz-range rejection.
WellPCB integrates sealed backshells, waterproof boots and gel-filled jackets into assemblies designed for microwave cable assemblies, outdoor telecom nodes and aerospace RF enclosures.
Each build is tested for shielding effectiveness using swept-frequency EMI scans across the full range of radio frequencies (RF).
All custom cable assemblies are manufactured under IPC-620 Class 3 standards with ISO 9001 process control.
Each coax cable assembly is 100% inspected for continuity, impedance trace plots and mechanical compliance.
Certified operators complete every unit using documented press tooling and calibrated solder stations, with connector validation aligned to IEEE 287.1-2021 for precision RF interfaces.
We support both low quantity and high volume cable assembly options, with lead times as short as 2 weeks for pilot runs.
Every part number is archived for repeat orders, including connector pinouts, cable cut lengths, shield types, and dielectric information.
Whether you need standard cable assemblies or fully engineered custom RF cable assemblies, builds are staged, labeled, serialized and verified before delivery. All assemblies are built and shipped with matching quality assurance (QA) reports.
Why Choose WellPCB as Your
Coaxial Cable Manufacturer?
WellPCB manufactures custom coax cable assemblies using operator certified crimp tooling, calibrated solder systems and validated GHz-range test procedures. We support prototype and production volumes with full traceability, RF-qualified builds, and documented compliance with IPC-620 and ISO 9001 standards.
Certified Manufacturing
Wide Connector Support
Rapid Prototyping
Complete Cable Customization
Low-Loss, Phase-Stable Builds
In-House Testing
Industries We Serve with Coax Cable Assemblies
WellPCB manufactures coax cable assemblies for use in telecommunications, aerospace, automotive, industrial and medical systems.
Each build is routed and terminated to meet system-level requirements using verified cable assembly options, assigned coaxial cable types, and connector formats specified per enclosure, interface, and bandwidth constraints.
Telecommunications
Aerospace Applications
Medical Equipment
RF Test & Measurement
IoT & Automotive Telematics
Industrial Automation
What is Our Coax Assembly Process?
WellPCB follows a structured coax assembly process that defines each manufacturing stage by tooling, specification, and test requirements.
Every step, from cutting, stripping, termination and validation, is controlled by drawing-defined cable routing, shield layout and connector attachment, ensuring repeatable builds across all coaxial cable types and connector formats.
Requirement Review & Spec Confirmation
Conductor Sizing & Material Selection (12 to 34 AWG)
Insulation Type Matching (PE, PTFE, PVC, PP)
Shield Configuration (Foil/Braid/Triple/Tube)
Connector Attachment: Crimp, Solder, or Micro-Braze
100% Functional & RF Testing
Packaging & Delivery with Lot Traceability
Submit Your Design
Send us your design details (Drawing or Detailed Specifications).
Get a Fast Quote
Once your design and specs are received, a fast quote will be sent to you within 24 hours.
Confirm Order & Make Payment
When the quotation is approved, please send the PO or order confirmation, we will proceed with the production after receiving your payment.
Arrange Production & Inspection
Before production, our technical team will review all details of the drawing/specs again. If everything is OK, the order will start. We'll keep you updated throughout the manufacturing process. After the production is completed, the products will be 100% inspected.
Packaging & Delivery
When completed, your order will be carefully packed and shipped to you, with shipping documents and tracking information provided.
WellPCB is trusted by millions of
businesses and innovators.
Why Choose WellPCB as Your Wire Harness Manufacturer?
WellPCB stands out among USA wire harness manufacturers by delivering superior quality, advanced solutions, and unmatched reliability. With years of experience serving global markets, WellPCB has earned a reputation as one of the top wire harness manufacturers in the USA.
WellPCB specializes in custom wire harnesses for complex electronic and industrial applications. You can order these assemblies with $100 off using our special offer—delivering high-quality, tailor-made harnesses at competitive rates for your most demanding projects.
Hommer Zhao
Founder and Chief Editor – Hommer Zhao
Welcome! I’m Hommer Zhao, the founder and Chief Editor of WellPCB. With years of experience in the PCB industry, I’m committed to making sure our content is both accurate and helpful. We’re proud to serve a growing community of over 4,000 customers worldwide, and our goal is to provide you with the best resources and support. Your satisfaction is our top priority, and we’re here to help you every step of the way!
Jesse Holland
Technical Manager – Jesse Holland
Hi, I’m Jesse Holland, an Engineer and Technical Manager at WellPCB. With years of experience in PCB design and engineering, I’m here to ensure that every project we work on meets the highest technical standards. I lead our team, focusing on precision and innovation, collaborating closely with clients to provide tailored solutions and expert guidance. Whether you’re facing a complex design challenge or need advice on technical aspects, I’m here to ensure your project is a success from start to finish.
Nathan Jensen
Purchasing Manager – Nathan Jensen
Hi, I’m Nathan Jenson, the Purchasing Manager at WellPCB. I’m responsible for sourcing the best materials and components to ensure our products meet the highest quality standards. With my extensive experience in procurement, I work closely with suppliers to secure reliable and cost-effective solutions while maintaining strong relationships to support our operations. I aim to ensure every project runs smoothly by providing the resources needed to deliver on time and to your satisfaction.
Emma
Sales Manager – Emma
Hey, I am Emma, sales manager at WellPCB. I studied electronic science and technology at university and have served customers for PCB and PCB Assembly service for several years.
I enjoy communicating with customers and our technicians to solve problems, and customers always say, "It's great to have you onboard".
It is my pleasure and honour to be helpful. Contact me now, and you'll know.
Bella and Cassiel
Sales Representatives – Bella and Cassiel
We’re Bella and Cassiel, your dedicated sales representatives at WellPCB. With our extensive knowledge of the PCB industry, we’re here to provide exceptional service and support. We take the time to understand your unique needs and are always ready to offer tailored solutions and advice. Whether you need product recommendations, assistance with your orders, or simply have a question, we’re here to ensure your experience is smooth and seamless at every step.
Mandy and Wendy
Sales Representatives – Mandy and Wendy
We’re Mandy and Wendy, your friendly sales representatives at WellPCB. Passionate about helping our customers, we bring a wealth of experience in the PCB industry to provide you with the best solutions and service. We take pride in building strong relationships with our clients, understanding their specific needs, and offering personalised support to ensure their satisfaction. Whether you’re looking for advice, product information, or assistance with any part of your order, we’re here to make your experience as smooth and efficient as possible.
Our Team
Our skilled engineers and technicians bring expertise and precision to every PCB assembly project. Committed to quality, efficiency, and innovation, our team ensures every order meets the highest UL, IPC, ROHS & REACH standards, delivering reliable solutions tailored to your needs.
- Founder and Chief Editor – Hommer Zhao
- Technical Manager – Jesse Holland
- Purchasing Manager – Nathan Jensen
- Sales Manager – Emma
- Sales Representatives – Bella and Cassiel
- Sales Representatives – Mandy and Wendy
PCB Assembly
High-frequency RF coaxial cables are used to transmit high-frequency signals in applications like radio and microwave communication, test systems, and radar systems.
Specifications:
- •Frequency Range: Up to 18 GHz (custom up to 40 GHz)
- •Impedance: 50 Ω / 75 Ω
- •Shielding: Double braid or foil + braid
- •Loss: Low attenuation (per GHz/m)
- •Jacket: FEP, PTFE, or PE (UV & chemical resistant)
- •Connectors: SMA, N-type, TNC, custom options
- •Certifications: MIL-C-17, RoHS, REACH
PCB Assembly
Impedance can be selected to match system requirements. Cable size, construction, and dielectric materials are optimized to meet precise RF performance criteria in critical applications.
Specifications:
- •Impedance: 50 Ω / 75 Ω (customizable)
- •Frequency Range: DC to 18 GHz (up to 40 GHz on request)
- •Dielectric: PTFE, PE, or Foam PE
- •Shielding: Single, double, or triple (foil/braid)
- •Jacket: PVC, FEP, LSZH
- •Connector Types: SMA, BNC, N-type, MCX, custom
- •Standards: MIL-STD, RoHS, REACH, ISO 9001
Wire Harness
Widely used in telecommunications, automotive, medical, and aerospace, BNC male connector cables provide quick, secure RF connections with reliable signal integrity.
Specifications:
- •Connector Type: BNC Male
- •Impedance: 50 Ω or 75 Ω
- •Frequency Range: DC to 4 GHz
- •Cable Type: RG58, RG174, RG316, or custom
- •Coupling: Bayonet-style for quick lock/release
- •Body Material: Nickel-plated brass or stainless steel
- •Standards: MIL-C-39012, RoHS, ISO 9001
Client Feedback On Our Automotive Wiring Harnesses
As an R&D manager, I have had an outstanding experience working with WELL-PCB. For many years, our company has entrusted them with the production, assembly, and programming of the boards developed in our R&D unit, and they have consistently exceeded our expectations.
Hamid Reza Moshayedi
R&D Manager
Their work is very impressively perfect. Today, when they check our company PCB board after assemble. They found a fake short point which many engineers has never found in the past years. But that is just designed so. The PCB board quality is excellent. Their service is also excellent.
MikeZ
My friend introduced WellPCB to me, the first try, a little look forward to. I ordered a 47*72 10ps PCB, and I can’t wait to receive my PCB. So I used expedited service and received my PCB in three days. I tested and soldered the PCB, Quality is really good, silkscreen, plating also great.
Warren Cliton
Coax Cable Assemblies FAQs
What is a coaxial cable?
A coaxial cable is a multi-layered transmission line consisting of a center conductor, a dielectric insulator, a shield layer and an outer jacket.
The signal travels through the inner core while the shield prevents electromagnetic interference from affecting performance. Coaxial designs are used in radio frequency systems that require consistent impedance and reduced signal loss across defined routing paths.
What types of connectors are used with coaxial cables?
Coaxial cables are terminated with connector types including SMA, BNC, SMB, MMCX, RP-SMA, and NMO mount, as well as TNC, F-type and DIN variations.
Each connector is assigned by interface type, mating geometry and frequency range, and is available in male (pin) or female (socket) versions. Selection depends on impedance, housing clearance, and compatibility with panel, module or device-level interconnect.
What impedance options do you offer?
WellPCB supplies coax cable assemblies in 50-ohm and 75-ohm formats, depending on the application. Impedance is determined by cable geometry, dielectric type and connector standard. Each configuration is verified using sweep testing to confirm matched impedance across the required frequency range.
What’s your maximum supported frequency?
WellPCB builds coaxial assemblies rated for signals up to 40 GHz using matched-length routing, phase-stable dielectrics and high frequency connectors. Each unit is verified using sweep analysis with recorded performance across the specified bandwidth.
What shielding levels are available?
WellPCB offers single, double, triple and tube-based shielding with effectiveness rated from 40 dB to over 95 dB. Shield formats include braid, foil, or a combination of layers, depending on enclosure noise, cable route and system grounding requirements. Each build is assigned a verified configuration based on target radio frequency isolation and mechanical routing constraints.
Do your coax assemblies meet REACH and RoHS standards?
Yes, all our coax cable assemblies are manufactured using RoHS-compliant materials. Documentation can be provided upon request for insulation, jacket, and connector components used in each build.
Get Your Custom Coax Assemblies Quote Today
And Get $100 Off Your First Order!
Submit your technical diagrams and our team will provide a detailed quote within 24 hours. With lead times as short as 2 weeks for prototypes and full traceability for production runs, WellPCB delivers the custom coax cable assemblies your project demands.
