252118

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Coaxial Connectors (RF) - 252118 Application Field and Working Principle

Coaxial connectors (RF), or just simply referred to as RF connectors, are one type of electrical-type connectors commonly seen in numerous consumer and commercial devices, networks, and applications. They are often used to connect two coaxial radiators to transfer electrical signals over a wide range of frequencies. Thus, they are widely used in the world of telecommunications, aerospace, television, and data communication industry, among other applications. In addition, they have been used in military and medical applications, and are always essential for the improvement of signal quality in many systems.

Generally speaking, RF coaxial connectors consist of a pin or socket made of metal to connect the two parts of the coaxial cable. These connectors may include features such as the presence of a grounding screw, a connection between the center pin and the shield, and the construction of the connector that suit a specific impedance. In addition, materials utilized for these connectors can range from brass to silver and even to gold-plated nickel, to achieve the desired performance.

Concerning the 252118 application of RF coaxial connectors, it can be used for most coaxial cables with a diameter range of 3.175 - 3.937 mm (1/8 -1/4 inch). This makes it suitable for many different applications such as telephone wiring systems, antenna systems, and various types of data networks. Besides, it also has a broad application in some of the most developed markets,including automotive, telecommunications, consumer electronics, and medical.

Coming to the working principle of RF coaxial connectors, their most important purpose is to provide a reliable, low-loss connection with good impedance matching between two cables or between two devices. They connect to the conductors of a coaxial cable through the center contact which is isolated from the outer conductor by using a dielectric material. The outer conductor and the dielectric material form an electrical insulation barrier. The center contact is connected to the inner conductor of the cable, whereas the outer conductor is connected to the outer shielding of the cable.

First of all, the inner contact is connected to a special metal contact surface, which is formed as a cone standing out of the center contact. This metal contact surface comes in contact with the cable pin on the other side. As the cone is connected to the center contact, the connection between the two metal elements is done. Secondly, when the center contact of the cable is fitted to the connector, the connection between the two connectors is established.

After that, the outer conductor of the coax cable is then connected to the outer conductor of the connector. This connection is made through a special elastic material that is placed between the cable and the outer conductor. This elastic material is also known as a strain relief, for it takes the strain off of the connection. Finally, the outer shield of the RF coaxial connector is then connected to the outer conductor of the cable.

In conclusion, RF coaxial connectors (252118) are one type of electrical connectors that have a wide range of applications in commercial and consumer goods, telecommunications, and data communications. In addition, they work by ensuring a reliable connection between two cables or two electronic devices with low-loss and good impedance matching. Undoubtedly, RF coaxial connectors are essential for the improvement of signal quality in many systems.

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