The 5C cable is the thickest of the three types, with an outer diameter of approximately 7. 7 mm, and is a high-performance coaxial cable suitable for long-distance wiring. Here we will explain the features of each cable in detail. The difference of insulation and shield specification is as follows. Commonly used in television, CCTV, satellite, and broadband applications, this cable comes in various specialized types—each engineered to meet specific. A 5C coaxial cable refers to a classification of coaxial cables based on their construction, diameter, shielding, and signal transmission capabilities. These cables are engineered to carry high-frequency signals with minimal loss and interference, making them essential in telecommunications, video.