thin coaxial cables

Compact Thin Coaxial Cables Selection Guide: From 36AWG to 48AWG

Looking for reliable thin coaxial cables for your high-frequency RF signal transmission needs? Our premium selection of ultra-thin micro coaxial cables—ranging from 0.17mm to 1.2mm outer diameter (OD)—offers exceptional signal integrity in space-constrained, high-stakes engineering environments.

These 50 Ohm low-loss flexible lines are specifically engineered for medical endoscopy, surgical robotics, intravascular ultrasound (IVUS) catheters, wearable electronics, IoT modules, and high-density PCB microwave packaging.


Technical Selection Matrix for Micro-Coax

Cable Gauge Outer Diameter (OD) Core Material Insulation Type Target Applications
40 AWG Coax ~ 0.31 mm Silver-Plated Copper PFA / FEP 5G/6G Modules, Consumer IoT
42 AWG Coax ~ 0.26 mm Silver-Plated Copper PFA Precision Probes, Industrial NDT
44 AWG Coax ~ 0.20 mm High-Strength Alloy PFA Multi-channel Ultrasound Transducers
46 AWG Coax ~ 0.18 mm Silver-Plated Copper PFA Micro Endoscopic Imaging
48 AWG Coax ~ 0.17 mm Ultra-fine Alloy PFA Surgical Robotics, IVUS Catheters

Engineering Advantages of High-Flex Thin Coaxial Cables

1. Physics-Defying Miniaturization with 50Ω Impedance

When matching micro-coaxial cables down to 48AWG, maintaining a stable characteristic impedance of 50 ± 2 Ω is critical. Our manufacturing process utilizes precision fluoropolymer (PFA/FEP) extrusion to ensure elite dielectric consistency, preventing signal reflection and high VSWR even at ultra-high frequencies up to 110GHz.

2. High Flex Life & Non-Magnetic Shielding Options

Experienced R&D engineers know that thin coaxial structures offer far superior flexibility and durability compared to standard twisted pairs. By blending silver-plated copper conductors with high-density tinned copper braided or spiral shields (without copper foil), these cables deliver a tight bend radius and reliable dynamic flexing life, making them ideal for continuous motion inside medical robot arms.


FAQ: Engineering Insights for Thin Coax Procurement

What is the thinnest coaxial cable available for medical robotics?

Our 48AWG 50Ω coax is currently the thinnest configuration manufactured today, delivering a 0.17mm outer diameter, specifically designed for intravascular ultrasound (IVUS) catheters where traditional 36AWG wires fail to route.

Can these thin coaxial cables be customized into termination assemblies?

Yes, we provide fully customized multi-core hybrid wire bundles, pre-soldered termination PCBs, and custom medical-grade jackets (such as biocompatible TPU) tailored to your specific system layout.