In today’s high-density, high-frequency electronic designs, selecting the right interconnect solution is crucial. When space is tight and signal integrity matters, engineers increasingly turn to Micro Coaxial Cable. At FRS, we specialize in manufacturing and supplying high-quality 50Ω micro coaxial cables designed for satellite, RF, and antenna applications. With a minimum order quantity (MOQ) as low as 50 pieces, optional high-temperature ratings, and fast global shipping, our cables offer both performance and flexibility for prototyping and volume production.
What Is a Micro Coaxial Cable?
A Micro Coaxial Cable, often called Micro Coax, is a miniature coaxial cable featuring a very small outer diameter—typically between 0.3 mm and 1.2 mm. Despite its size, it retains the classic coaxial structure: a central conductor, dielectric insulator, metallic shield, and outer jacket. This compact design allows it to carry high-frequency signals with excellent impedance control and shielding effectiveness, making it ideal for space-constrained applications.
Typical Applications
- Satellite communications: Signal routing between antennas, transceivers, and onboard electronics.
- RF and wireless systems: Connections for antennas, filters, amplifiers, and test equipment.
- High-density electronics: Smartphones, wearables, laptops, and other portable devices.
- Medical devices: Ultrasound probes, endoscopes, and diagnostic equipment.
- Automotive and aerospace: In-cabin electronics, sensors, and control systems.
Why 50Ω Is the Standard for RF and Satellite Systems
In the world of RF and microwave engineering, 50Ω impedanceis the de facto standard. This value represents a practical compromise between two key factors:
- Maximum power handling: Higher impedance (e.g., 75Ω) reduces voltage stress but increases current.
- Low signal loss: Lower impedance reduces conductor loss but increases dielectric loss.
The 50Ω standard provides a balanced solution, minimizing signal reflections (low VSWR) and ensuring reliable power transfer. For satellite and RF applications, using a true 50Ω cable is critical to avoid standing waves that can cause signal distortion, reduced efficiency, and potential damage to sensitive components.
FRS High-Quality 50Ω Micro Coaxial Cable
At FRS, we manufacture micro coaxial cables built for demanding applications. Our standard 50Ω cables are engineered for consistent electrical performance, mechanical durability, and long-term reliability.
Key Electrical Specifications
- Impedance: 50Ω ± 2Ω (typical), ensuring compatibility with standard RF equipment.
- Frequency Range: Up to 6 GHz for standard grades; higher-frequency options available for specialized needs.
- Velocity of Propagation: ~70–80%, depending on dielectric material.
- Shielding Effectiveness: >90 dB, providing excellent immunity to EMI and RFI.
Mechanical and Environmental Specs
- Outer Diameter: 0.3 mm to 1.0 mm, depending on AWG size.
- Conductor: High-purity stranded or solid copper, with optional silver plating for better高频 performance.
- Dielectric: Low-loss options like PFA, FEP, or PE.
- Shielding: Multiple layers of braided copper or spiral-wound foil for high coverage.
- Jacket: Standard PVC or LSZH, with high-temp options using PFA/FEP for -50°C to +200°C operation.
Micro Coax for Satellite, RF, and Antenna Applications
Satellite Communication Links
- Signal Integrity: Stable 50Ω impedance and low VSWR preserve signal quality over long distances.
- Phase Stability: Low dielectric loss and stable materials ensure consistent phase characteristics, critical for phased-array antennas and high-speed data links.
- Lightweight Design: Thin, lightweight cables reduce overall system mass, a key advantage in aerospace applications.
RF Test and Measurement
- Repeatable Measurements: Consistent impedance and low loss ensure accurate, repeatable results.
- Durability: Flexible yet robust construction withstands repeated bending in lab and field environments.
- Connector Compatibility: Easily terminated with SMA, SMB, MCX, U.FL, and other standard RF connectors.
Antenna and Wireless Systems
- Compact Routing: Small diameter and flexibility simplify installation in tight spaces.
- Broadband Performance: Low attenuation and stable impedance across a wide frequency range support multi-band and wideband applications.
- EMI Protection: High shielding effectiveness prevents signal leakage and ingress, ensuring reliable communication.
High-Temperature Micro Coax Options for Harsh Environments
Standard micro coax cables typically operate within -20°C to +80°C. For more demanding environments, FRS offers high-temperature variants designed for continuous operation up to +200°C.
Material Choices for High-Temperature Performance
- Dielectric & Jacket: PFA and FEP fluoropolymers offer excellent thermal stability, chemical resistance, and low dielectric loss.
- Conductors: Silver-plated copper alloys maintain high conductivity and resist oxidation at elevated temperatures.
- Connectors & Terminations: Assemblies use high-temp rated connectors and special soldering processes to ensure reliability.
Application Scenarios
- Automotive: Under-hood and engine bay applications.
- Industrial: Near motors, inverters, and heating elements.
- Aerospace & Defense: Avionics, radar, and satellite systems.
- Process Control: Sensors and instrumentation in high-temperature industrial processes.
Low MOQ and Flexible Procurement: Start with 50 Pieces
Recognizing that project needs vary, FRS offers a competitive minimum order quantity (MOQ) of just 50 pieces. This low barrier to entry provides significant advantages:
- Prototyping and R&D: Test and validate designs without a large upfront investment.
- Low-Volume Production: Ideal for niche products, pilot runs, and custom equipment.
- Reduced Inventory Risk: Order smaller batches to match production schedules and avoid excess stock.
Fast Shipping and Global Logistics
Time-to-market is critical. FRS is committed to fast, reliable delivery:
- Standard Lead Time: 1-2 weeks for most standard cables and assemblies.
- Expedited Options: Rush production and shipping available for urgent projects.
- Global Shipping: We partner with trusted carriers (DHL, FedEx, UPS) to serve customers worldwide.
- Local Support: Regional warehouses and partners in key markets help reduce shipping times and costs.
Customization and Technical Support
Every application is unique. FRS provides extensive customization options and expert support:
- Custom Geometries: We can tailor conductor size, dielectric, shielding, and jacket to meet specific electrical and mechanical requirements.
- Connector Assembly: Our engineers can recommend and terminate cables with a wide range of RF and board-to-board connectors.
- Technical Consultation: From initial design to final testing, our team helps you select the optimal cable for your application.
- Quality Assurance: We offer 100% electrical testing, including continuity, insulation resistance, and hi-pot testing, with full documentation available.
Why Choose FRS for Your Micro Coaxial Cable Needs?
- Quality: We use premium materials and adhere to strict manufacturing standards (UL, RoHS, REACH).
- Performance: Our cables deliver reliable 50Ω impedance and low loss for critical RF and satellite links.
- Flexibility: Low MOQ of 50 pieces, plus custom options for both prototyping and volume production.
- Durability: High-temperature variants available for operation up to +200°C.
- Speed: Fast lead times and global shipping to keep your projects on schedule.
- Expertise: Decades of combined experience in micro coax design and manufacturing.
Frequently Asked Questions (FAQ)
Q1: What is the typical lead time for an order of 50 pieces?
A: Standard lead time is 1-2 weeks. Rush services are available for urgent needs.
Q2: Can I get a high-temperature version of a standard 50Ω micro coax?
A: Yes, we offer high-temp variants with PFA/FEP materials rated for continuous operation up to +200°C.
Q3: Do you provide cables with connectors attached?
A: Yes, we offer fully assembled cables with a wide variety of RF and board-to-board connectors.
Q4: Is 50Ω impedance critical for my application?
A: For satellite, RF, and most wireless systems, using a true 50Ω cable is essential for minimizing signal reflections and ensuring reliable performance.
Q5: What payment and shipping options do you support?
A: We accept T/T and major international payment methods. We ship globally via express couriers like DHL, FedEx, and UPS.
Ready to Order or Need a Quotation?
Whether you need a small batch for prototyping or a large production run, FRS is ready to supply high-quality 50Ω micro coaxial cables at competitive wholesale prices. Contact our sales team today with your specifications for a fast, no-obligation quote.
