Series F RF Coaxial Connector, also known as F-type connector, is an economical, threaded RF connecting component compliant with IEC 61169-24 standards, designed for stable signal transmission in low-to-medium frequency scenarios. Invented in the early 1950s, it is widely recognized for its simple structure, cost-effectiveness and reliable performance, serving as a core interconnection part in video transmission and daily RF systems.
The series features distinctive performance tailored for civilian and industrial basic RF applications. With a fixed characteristic impedance of 75Ω, it supports a working frequency range of DC to 1GHz (up to 2.15GHz for enhanced models), perfectly adapting to video and low-frequency RF signal transmission needs. Key electrical parameters are reliable: insertion loss is as low as 0.2dB at high frequencies, VSWR is ≤1.2 for straight types and ≤1.3 for right-angle types, contact resistance of inner conductor ≤10mΩ and outer conductor ≤5mΩ, while insulation resistance ≥1000MΩ, ensuring minimal signal attenuation.
Manufactured with cost-effective materials and simple precision processes, it adopts brass or zinc alloy housing (nickel-plated), brass contacts (nickel or gold-plated) and PTFE or POM insulators, balancing performance and cost. It uses a 3/8-32 UNEF threaded connection for firm mating, with optional O-ring sealing for basic waterproof protection in outdoor use. It can withstand a working temperature range of -40℃ to +140℃ and 500+ plugging cycles, meeting daily and general industrial use requirements.
Widely applied in cable television (CATV), satellite TV, set-top boxes, cable modems and terrestrial television antennas, it is usually paired with RG-6/U or RG-59/U coaxial cables. As a cost-effective and practical RF interconnection solution, it plays an indispensable role in daily video and basic RF transmission systems, supporting the stable operation of related equipment.