919-387P-51A Connectors, Interconnects

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Coaxial connectors are a kind of electrical components which are widely used in a variety of electronic products and systems for carrying radio frequency signals. Among many types of coaxial connectors, the 919-387P-51A is a high performance, 50 Ohm SMA male to SMA female connector suitable for both high frequency and high speed applications. This article will discuss the application fields and the working principle of the 919-387P-51A.

The 919-387P-51A coaxial connector is primarily used in antenna systems, precision instrumentation, and digital and telecom systems which require a reliable transmission of high frequency signal with an impedance of 50 Ohm. The convenient interior thread lock design makes installation and removal much easier without tools and take up minimal space inside the product, perfect for applications with limited space. Other features which make the connector suitable for critical microwave applications include low insertion loss, extremely low reflection coefficient, low VSWR, high reproducibility and long-term reliability.

The 919-387P-51A exhibits working principle of coaxial connectors in general. When two matching connectors are mated, an electric field is created inside the interior space of both connectors. The electric field is created by the electric current running through an annular dielectric element inside both connectors. The exterior of the connector shell is connected to the inner center contact due to the mated pin and dielectric blockade, and the gap between them allows the electric field to penetrate the exterior of the connector. The exterior of a coaxial connector are also shielded from outside interference of the electric field. The role of the dielectric element inside the connector is to maintain an electric connection between the two sections of the connector and prevent any loss of the high frequency signals.

The 919-387P-51A offers excellent performance for many types of applications which require a reliable transmission of 50 Ohm signals with low loss. The interior thread lock design and rugged construction ensures long-term reliability for high frequency and high speed applications. With features and performance, the 919-387P-51A is the ideal solution for many critical microwave applications.

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