Who are the real players in micro coaxial cable manufacturing—the ones actually building cable for medical imaging, NDT, aerospace, and robotics—versus the companies that show up in search results but mostly resell other manufacturers' products? That distinction matters when you're qualifying a supplier for a medical device or a critical industrial application. The micro coaxial cable manufacturer landscape includes a handful of vertically integrated producers who control their own cable extrusion, stranding, and assembly operations, alongside a larger number of assemblers who purchase raw cable and add connectors. Both have their place, but you need to know which type you're evaluating.
This overview covers the manufacturers we compete against, collaborate with, and respect—based on actual experience in the market, not secondhand research. We've included ourselves (FRS Technology) in the list with the same honest assessment we apply to everyone else. Where we have firsthand competitive testing data, we reference it. Where we don't, we note what the market generally reports.
1. Junkosha (Japan)
Junkosha is the name most medical ultrasound OEMs think of first when specifying micro coaxial cable. Their MCT (Micro Coaxial Tube) series has been the reference standard for ultrasound probe cables for decades. Junkosha's core strength is fluoropolymer material science—they compound their own PTFE and FEP materials, giving them fine control over dielectric properties. Their cables consistently deliver tight impedance tolerance (±1Ω) and excellent phase matching. The trade-off is pricing (premium) and lead time (8-14 weeks for production quantities). Junkosha doesn't offer cable assembly services—they sell raw cable, and the OEM or a third-party assembler handles termination. Best for OEMs with established assembly capabilities who need the highest-pedigree raw cable for ultrasound and medical imaging.
2. Proterial / Hitachi Metals (Japan)
Proterial (formerly Hitachi Metals, rebranded 2023) produces the SonoEase series of medical micro coaxial cables, positioned as a direct competitor to Junkosha's MCT series . Their strengths are similar—Japanese manufacturing precision, established medical OEM relationships, and consistent quality. Proterial offers slightly more flexibility on custom constructions than Junkosha, particularly for hybrid cables that combine coaxial with non-coaxial elements. Pricing and lead times are comparable to Junkosha. Like Junkosha, they're primarily a raw cable supplier rather than an assembly house.
3. W.L. Gore & Associates (USA)
Gore's micro coaxial cable strengths center on their proprietary ePTFE dielectric technology. For Applications requiring the lowest possible capacitance and dielectric loss—high-frequency ultrasound, broadband imaging, precision test and measurement— Gore's ePTFE cables are a benchmark. Gore is vertically integrated from raw ePTFE material through finished cable, which gives them process control advantages. They also provide strong application engineering support. The trade-offs: highest pricing in the market (50-80% above Chinese alternatives), longer lead times, and limited flexibility on non-standard constructions. Best for Applications where ePTFE dielectric performance is critical and cost is secondary.
4. FRS Technology (China)
Our own company—so take this assessment with appropriate context. FRS Technology specializes in bundled multi-channel micro coaxial cable assemblies for medical imaging, NDT, and surgical robotics. Our differentiator is integrated cable-plus-assembly under one roof: raw cable production, planetary stranding, connector termination, phase matching, and 100% per-assembly testing. We offer the widest AWG range in production (32-50 AWG), competitive pricing, and 4-8 week lead times. ISO 13485 certified. Our weakness compared to Japanese competitors is brand recognition with conservative procurement departments and shorter track record in the medical market (established 2000, but medical focus since ~2015). Best for OEMs needing finished, tested cable assemblies at competitive cost with flexible MOQs.
5. Belden (USA)
Belden is a large-scale cable manufacturer with a broad product catalog including micro coaxial lines. Their strength is distribution—standard Belden cables are available through multiple distributors with short lead times for catalog items. Belden's micro coaxial range covers standard constructions (RG-178, RG-196, and proprietary miniature series) but doesn't extend to ultra-fine gauges or bundled assemblies. They're a cable supplier, not an assembler. Best for purchasing departments that value catalog availability and established distribution, particularly for industrial, test/measurement, and defense Applications . Less suited for medical OEMs needing custom bundled assemblies or ultra-fine gauge cable.
6. Temp-Flex / Amphenol (USA)
Temp-Flex, now part of Amphenol, produces high-performance micro coaxial cables with a strong presence in medical and defense markets. Their capabilities include ePTFE dielectric, ultra-fine gauges to 48 AWG, and custom constructions. Amphenol's acqusition brought broader connector integration capabilities. Pricing is in the US/Japanese tier. Best for programs that benefit from a cable-plus-connector solution from a single large supplier with a broad product portfolio.
7. Axon' Cable (France)
Axon' Cable is a European micro coaxial cable manufacturer with strengths in aerospace, defense, and medical applications. They offer an unusually wide range of custom cable constructions and are willing to take on low-volume specialty designs that larger manufacturers might decline. Their quality systems are well-established for European medical and aerospace standards. Pricing is comparable to Japanese manufacturers. Lead times are typically 6-10 weeks. Best for European OEMs who prefer a regional supplier and need custom constructions with low MOQs.
8. Samtec (USA)
Samtec is primarily known as a connector company, but they've expanded into micro coaxial cable assemblies—selling the complete connector-cable-connector solution rather than standalone cable. Their strengths are connector design integration and rapid prototyping (their "Sudden Service" program ships samples in days). Cable manufacturing is not their core competency—they source raw cable externally—but their assembly and connector integration capabilities are strong. Their engineering team is responsive and technically competent, particularly on high-speed digital signal integrity questions where their connector expertise adds real value to the cable discussion. Best for applications where the connector interface is the primary design challenge and the cable is a secondary consideration.
9. Habia Cable (Sweden)
Habia Cable produces micro coaxial and specialty cables from their Swedish and Chinese facilities. They serve medical, defense, and industrial markets with a catalog that includes standard and custom micro coaxial constructions. Habia's dual manufacturing base (Europe and China) gives them flexibility on pricing and lead times depending on which facility serves the order. Their Swedish facility maintains AS9100 certification for aerospace applications. One notable Habia capability: they offer radiation-resistant cable constructions for nuclear and particle physics applications, using polyimide and ceramic insulation systems that survive exposure levels that would destroy fluoropolymer cables. Best for OEMs looking for a European-headquartered supplier with competitive pricing through their Asian production facility.
10. Kodera (Japan)
Kodera is a smaller Japanese manufacturer focused on ultra-fine wire processing and micro coaxial cable. They're less well-known internationally than Junkosha or Proterial but produce high-quality cable, particularly at ultra-fine gauges (46-50 AWG). Their strength is manufacturing precision at dimensions where many other manufacturers struggle with consistency. Kodera also produces wire processing equipment (strippers, crimpers) used by other cable manufacturers—which gives them unique insight into the manufacturing process challenges at micro dimensions. Limited international sales presence compared to the larger Japanese companies. Best for applications requiring ultra-fine gauge cable where production consistency is the top priority.
Honorable Mentions
Several manufacturers didn't make the top 10 but deserve recognition in specific niches. Huber+Suhner (Switzerland) produces precision RF coaxial cables with some micro coaxial options for test and measurement. Nexans (France) has medical cable capabilities through their healthcare division. TE Connectivity has micro coaxial connector-cable solutions through their Raychem brand. And in China, there are several emerging manufacturers investing heavily in medical-grade micro coaxial capability who may be on this list in future years as they build track records and certifications.
How to Use This List
The right manufacturer for your program depends on what you're optimizing for. A startup building their first ultrasound probe has different priorities (fast prototyping, flexible MOQs, engineering support) than a tier-1 OEM scaling production (proven track record, capacity, brand pedigree). The table below maps application priorities to manufacturer strengths—use it as a starting point for your shortlist, not as a definitive recommendation. Every program has unique requirements that no summary table can fully capture.
One pattern we see repeatedly: OEMs who start with a Japanese supplier for the prestige and qualification confidence, then add a Chinese secondary source for cost and lead time advantages once the cable specification is stable. This staged approach works well because the initial qualification with a Japanese supplier establishes the cable performance baseline, and the Chinese secondary source qualification becomes a comparative exercise against that known baseline—which is faster and less risky than qualifying an unproven specification with an unproven supplier simultaneously.
| Your Top Priority | Best Fit Manufacturers | Why |
|---|---|---|
| Lowest total assembly cost | FRS Technology, Habia (China facility) | Integrated assembly; lower overhead structure |
| Highest brand pedigree | Junkosha, Gore, Proterial | Decades of tier-1 OEM relationships |
| Fastest prototype turnaround | Samtec, FRS Technology | Rapid sampling programs; flexible scheduling |
| ePTFE dielectric expertise | Gore, FRS Technology, Junkosha | Vertically integrated ePTFE capability |
| Ultra-fine gauge (46-50 AWG) | Kodera, FRS Technology, Junkosha | Production-proven at sub-46 AWG |
| Catalog availability / distribution | Belden, Gore | Broad distributor network; stock availability |
| European regional preference | Axon' Cable, Habia | EU-based manufacturing; European regulatory alignment |
| Connector + cable integrated solution | Samtec, Amphenol/Temp-Flex | Cable and connector under one supplier |
What This List Doesn't Cover
This overview focuses on manufacturers with demonstrated capability in micro coaxial cable for medical, NDT, aerospace, and robotics applications. It doesn't cover the much larger universe of general-purpose coaxial cable manufacturers (who make larger RF cables but not micro coaxial), cable assembly houses (who buy raw cable and add connectors but don't produce the cable itself), or distributors and trading companies (who resell other manufacturers' products under their own branding).
If you're evaluating a manufacturer not on this list, the key questions are: do they actually produce micro coaxial cable in-house, or do they source it? Can they demonstrate production capability at the AWG and channel count your application requires? Do they hold ISO 13485 (for medical) or equivalent quality certifications? And can they provide reference data from similar applications? These questions separate the manufacturers from the middlemen—both have legitimate roles in the supply chain, but you need to know which you're dealing with.
If you're starting a supplier evaluation for a micro coaxial cable program and want to shortlist candidates efficiently, share your application, cable specification, and volume requirements —we can provide our own proposal and, honestly, point you toward other manufacturers on this list that might be a better fit if your requirements align more closely with their specializations. The micro coaxial cable market is small enough that we know our competitors well, and we'd rather you find the right supplier than force a fit where one doesn't exist.
One detail that often gets overlooked when comparing manufacturers: ask about their test equipment calibration program and measurement uncertainty. A manufacturer who claims ±1Ω impedance tolerance but uses a TDR with ±0.5Ω measurement uncertainty is effectively specifying ±1.5Ω. The measurement capability behind the specification is as important as the specification itself—and it varies more widely between manufacturers than you might expect.
Related Products
Our production covers 4 to 512 cores in 36-50 AWG, with ePTFE dielectric and 100% electrical inspection on every channel. Related products:
Request a quote with your core count, AWG, connector type and length - engineering response within 48 hours.
