Extremely thin coaxial cable: The core tool for high-performance micro connections

In the current trend of electronic products towards thinness and miniaturization, ultra-thin coaxial cables (Micro Coaxial Cable) have gradually become the preferred signal connection cables inside various precision equipment due to their unique structure and excellent performance. So, what is an ultra-thin coaxial cable? What are its core advantages? This article will provide a comprehensive explanation.

What is ultra-fine coaxial cable?
Extremely thin coaxial cable is a precision coaxial cable with an extremely small diameter, typically ranging from 0.2mm to 1.37mm in outer diameter. Its internal structure still maintains the typical coaxial structure—central conductor, insulation layer, shielding layer, and outer sheath arranged coaxially. It is widely used in scenarios with extremely high space requirements and strict signal transmission performance requirements, such as medical endoscopes, ultrasonic probes, laptops, smartphones, drones, monitoring equipment, and wearable devices.

Schematic of ultra-fine coaxial structure:
• Central conductor: usually made of silver-plated copper or copper alloy
• Inner insulator: high-performance polymers, such as FEP, PFA
Woven屏蔽 layer: silver-plated copper wire or tin-plated copper wire
Outer sheath: thermoplastic material or polyurethane

Three, the core advantages of ultra-fine coaxial lines
Extremely small diameter, occupying minimal space
The fine thread diameter makes it particularly suitable for electronic products with limited internal space.
Excellent signal transmission performance
Even with extremely thin wire diameter, it still has good high-frequency signal transmission capability, effectively reducing signal loss and interference, ensuring stable data transmission.
Outstanding flexibility and bending resistance
Extremely thin coaxial cables are soft and flexible, adaptable to complex internal wiring of equipment, with a bend resistance life of up to tens of thousands of times.
Strong electromagnetic shielding effect
Multi-layer shielding design effectively resists electromagnetic interference, ensuring stable signal quality.
• Reliable high-temperature and corrosion-resistant properties
Adopting high-temperature polymer insulation and sheath, it can be used for a long time in complex environments such as high temperature and humidity.

Extremely thin coaxial cables, with characteristics such as "small diameter, high performance, strong shielding, high temperature resistance, and ultra-softness," have become an indispensable key component for signal transmission inside high-end medical equipment, smart wearable devices, 5G terminals, and drones and other high-tech products. As electronic products continue to become thinner and more miniaturized, their application prospects will also become broader.
We have been focusing on the design and customization of high-speed signal cable assemblies and ultra-fine coaxial cable assemblies for a long time, committed to providing stable and reliable high-speed interconnection solutions. If you have any related needs or want to learn more, please contact: Yin Manager.18913280527 (WeChat number).