Micro coaxial cables are essential for transmitting high-frequency signals in compact devices. This guide covers key specifications and customization options to help you choose the right cable for your project.
Diameter & Construction
- Outer Diameter (OD):Typically ranges from 0.3 mm to 1.2 mm, with ultra-fine options down to 0.025 mm (48 AWG)for extremely space-constrained designs.
- Conductor:High-purity copper or silver-plated copper, with sizes from 36 AWG to 48 AWG. Finer gauges offer greater flexibility but have higher resistance.
- Dielectric:Materials like PTFE, FEP, or PE provide stable electrical properties and low loss. The choice depends on the frequency, temperature, and flexibility requirements.
- Shielding:A combination of braided shields and foil layers provides 70% to 95%+ coverageto minimize electromagnetic interference (EMI) and crosstalk.
- Jacket:FEP, PFA, or PVC jackets protect the cable and can be selected for properties like chemical resistance, flexibility, or flame retardancy.
Impedance & Frequency
- Standard Impedances:50 Ωfor RF/antenna and data transmission, and 75 Ωfor video and broadcast applications. Precision control within ±2%is crucial for signal integrity.
- Frequency Range:Performance varies by construction. Standard micro-coax is suitable for up to several GHz, while ultra-thin designs can support up to 30 GHzfor specialized applications like 5G and aerospace.
- Attenuation:Thinner cables have higher resistance and attenuation. Engineers must balance size, attenuation, and acceptable signal loss for their specific frequency and distance.
Shielding Options
- Single-Layer:A basic foil shield for cost-sensitive applications with moderate EMI environments.
- Dual-Layer:A combination of braid and foil, offering 70-95%+ coveragefor superior EMI protection in noisy industrial or medical settings.
- Triple-Layer:Used in high-reliability applications, adding an extra layer for maximum shielding and mechanical strength.
- Low-Noise Designs:Incorporate a conductive layer under the jacket to reduce triboelectric noise, which is critical for sensitive medical and measurement equipment.
Mechanical Properties
- Flex Life:Determines how many bending cycles a cable can endure. Designs can achieve 20,000+ cyclesat tight bending radii, which is vital for robotics and wearable devices.
- Bending Radius:The minimum bend radius is a key design parameter. For high-flex cables, it can be as tight as 0.5× the cable OD.
- Environmental Resistance:Cables can be specified for a wide temperature range (-40°C to +125°C)and various ingress protection (IP) ratings for harsh environments.
🔩 Connector Integration
- High-Density Options:Micro-coaxial assemblies often use fine-pitch connectors like 40-pin or 50-pintypes with a 0.4 mm pitch, ideal for high-speed differential signals (LVDS/EDP) in displays and medical monitors.
- Common Interfaces:SMB, SMC, MMCX, and custom board-to-board connectors are used depending on the application.
- Durability:Connectors are designed for high mating cycles, with some rated for 5,000+ insertions, and feature polarization to prevent mis-mating.
OEM/ODM Customization
- Geometry:Customize the cable’s OD, length, and pitch. Multi-coax or hybrid cables with twisted pairs and coaxes are also possible.
- Materials & Performance:Select specific conductor plating, dielectric, shielding, and jacket materials to meet requirements for flexibility, temperature, and chemical resistance.
- Connector & Assembly:Choose from a wide range of standard or custom connectors. Value-added services include automated assembly, strain relief, and overmolding.
- Compliance & Testing:Ensure products meet industry standards like RoHS, ISO 13485 (Medical), and IATF 16949 (Automotive). Full testing and documentation support is standard.
Key Application Areas
- Medical Devices:Used in endoscopes, surgical robots, and patient monitors where small size, high flexibility, and EMI shielding are critical. Biocompatibility may be required.
- Consumer Electronics:Found in smartphones, tablets, wearables, and drones where space is limited and high-speed data transmission is needed.
- Industrial & Robotics:Withstands vibration and bending in automated machinery, industrial cameras, and test equipment.
- Automotive & Aerospace:Meets stringent requirements for EMI, temperature, and reliability in infotainment systems, ADAS sensors, and avionics.
Partner with FRS for Your Micro Coaxial Cable Needs
For engineers and procurement teams, finding a partner that combines technical expertise with manufacturing agility is key. FRSis an experienced manufacturer specializing in micro coaxial cable and cable assembly solutions.
- Comprehensive Capabilities:From concept to mass production, FRS supports custom diameters, impedances, shielding, and complex assemblies.
- Engineering Support:Their experienced engineers provide application-specific advice to optimize your design for performance and cost.
- Certified Quality:With a focus on quality and reliability, FRS is equipped to meet the stringent demands of industries like medical, industrial, and automotive.
Ready to start your project?Contact the FRS team with your specifications for expert guidance and a tailored quotation.
Contact Us Right Now:
TEL&WECHAT: +86-1881-875-005 (Wechat)
E-MAIL: sales@custom-cable-assemblies.com
