Coaxial Cable
(Total 1 Products)-
Min. Order:1Rated Temperature: 105°C Rated Voltage: 30V AC Reference Standards: UL758, UL1581 Conductor: Single or stranded 44AWG and above, tinned or bare copper Insulation: PE/FRPE, PP, compliant with ROHS environmental standards Jacket: PVC, compliant with...
A Coaxial Cable is an elegantly designed electrical cable whose unique construction allows it to efficiently carry high-frequency electrical signals. It consists of four concentric layers: a central copper conductor for signal transmission, surrounded by an insulating dielectric layer, which is then enclosed by a braided mesh outer conductor that also acts as a shield, all protected by an outer jacket. This sophisticated design effectively confines the electromagnetic field between the inner and outer conductors, thereby minimizing signal loss (attenuation) and external electromagnetic interference (EMI), ensuring signal integrity and clarity. Although fiber optic technology has rapidly advanced in the realm of ultra-high-speed data transmission in recent years, coaxial cable remains an irreplaceable choice in numerous applications due to its reliability, durability, and relatively lower cost.
The performance and application of this cable largely depend on its impedance characteristics and shielding quality. Common impedance ratings include 50 ohms (widely used in radio transmitting equipment, laboratory instruments, and early computer network Ethernet) and 75 ohms (primarily used for video signal transmission, cable television systems, and satellite antenna connections). Depending on the shielding effectiveness, coaxial cables are categorized into various types, such as single-shield, double-shield, or even quad-shield, with more shielding layers providing greater resistance to interference. Consequently, coaxial cable forms the infrastructure of cable television networks, closed-circuit television (CCTV) systems, radio communications, and home TV satellite reception. From professional broadcast equipment to home broadband networks (e.g., Cable Internet) and amateur radio communications, coaxial cable continues to play a vital role in modern connectivity.