456E717H

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Coaxial Connectors (RF): 456E717H Application Field and Working Principle

Coaxial connectors are typically used in RF applications in various scenarios where large amounts of power need to be handled, in a very compact size. The 456E717H from Ramsey Electronics is one such example, designed for easy-to-use integration into systems that require a high degree of robustness and performance.

The 456E717H is a micro-coaxial RF connector, measuring just 4mm in diameter and 7mm in length. It is designed with a rugged, nickel-plated brass shell, gold-plated contacts, and insulated wire-forms suitable for use in both air and water-cooled applications. The 456E717H also boasts a maximum power rating of 40 watts, and a rated voltage of 200V RMS.

Where the 456E717H really shines is in its application field and working principle. This connector is designed for use with coaxial cables such as LMR cable (Low-loss Microwave Radio), 50 ohm cable, LL (low-loss) cable, and HR (high-reliability) cable. Additionally, the 456E717H is designed for applications in high-power RF systems, such as radio links, including mobile and base station applications. It is used to join two sections of coaxial cable between a transmitter, receiver, and associated peripheral components. It enables the transmission of RF signals over the connected cables while providing effective shielding from outside interference and environmental factors.

The electrical principle behind the 456E717H connector is based on a series of coaxial contacts. The inner contact is made of gold-plated brass and is connected to the inner conductor of the coaxial cable, while the outer contact is nickel-plated brass and is connected to the shield. Both contacts are contact-biased to the connector’s internal components, and when the connector is engaged, the inner contact’s electrical connection is made to the other contact’s connection, thus creating an electrical bridge that provides the desired transmission of RF signals.

Installation of the 456E717H connector is simple, as it features a standard, 5/16” diameter mounting hole. Simply drill a 5/16” hole in the paneling material, insert the connector, fasten it to the paneling material using the supplied hardware, and terminate the cables with the appropriate connectors before securing them in place.

In short, the 456E717H is an ideal solution for high-power RF applications requiring robust and reliable connections. Its ease of installation and robust design make it an ideal choice for many high-power RF applications. Its relatively small size and high power rating make it particularly appealing in environments where portability is of the utmost importance.

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