21JR123-1

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Coaxial connectors, also known as RF connectors, are electrical connectors designed to work with coaxial cables and are used to interface with antennas, amplifiers, receivers, transmitters, and more. The 21JR123-1 is a coaxial connector from Presidio Components, a major player in coaxial connectors. This article will explain the application field and working principle of the 21JR123-1.

The 21JR123-1 is a 50Ω impedance male right angle coaxial RF connector that is designed to operate in mobile broadband, in-building DAS, GPS, and outdoor antenna applications. It uses a snap-on connection for reliable mating, with gold-plated contacts for improved electrical performance and corrosion resistance. The 21JR123-1 is designed to fit standard 50Ω RG-178/U, RG-179/U and RG-180/U cables. It is available in either straight or right angle configurations, making it suitable for a wide variety of applications.

In terms of its working principle, the 21JR123-1 utilizes a two-piece snap-on, or push-on-style interface with an integrated coupling nut. It features a nickel-plated brass center contact, a nickel-plated brass outer contact, and a dielectric body in order to achieve maximum conductivity. The contacts are made of gold-plated brass to maintain electrical performance and prevent corrosion. The dielectric material minimizes the risk of signal attenuation and prevents undesirable RF impedance shifts.

The 21JR123-1 is a robust connector that can handle high frequencies of up to 3GHz. It offers excellent RF shielding, with a shielding effectiveness of 99.99 percent. It also provides low signal transmission loss, with a return loss as low as -65dB. Additionally, its snap-on design ensures easy and reliable mating with a lot of different types of cables, making it a very versatile option.

In conclusion, the 21JR123-1 is a robust, reliable, and versatile coaxial RF connector that can be used for a variety of applications, including mobile broadband, in-building DAS, GPS, and outdoor antenna. It utilizes a two-piece snap-on interface with an integrated coupling nut, gold-plated contacts, and dielectric body for maximum electrical performance and corrosion resistance. It can handle high frequencies of up to 3GHz, offers excellent RF shielding, and has a low signal transmission loss. If you are looking for a reliable and versatile RF connector, the 21JR123-1 is a great choice.

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