BJ377

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Coaxial Connectors (RF) refers to the connectors and cable assemblies used in radio frequency signal transmission, and BJ377 is a kind of coaxial connectors. Its application field and working principle are discussed in this article.

Application Field of BJ377

BJ377 is a 50 Ohm 3.5mm subminiature precision coaxial connector that can be applied in the situations such as broadcast television, CATV, instrumentation transducers, wireless systems and high frequency monitoring systems. This kind of coaxial connector is able to handle signals at center frequencies up to approximately 6GHz. It is also the best choice for applications requiring a low profile, small size and a relatively stable electrical connection.

Working Principle of BJ377

BJ377 subminiature precision coaxial connectors have a simple working principle. It consists of a center contact (pin) and a two-stage outer shell. The contact pin is longitudinally connected to the inner conductor. The outer shell is connected to the outer conductor. When corresponding parts from two connectors join together, an air-tight enclosure is formed. This ensures a low-resistance connection and no interference in signal transmission. The typical impedance of BJ377 is 50 Ohm, which means that it is used for RF transmission.

In addition, the pins of BJ377 coaxial connector are dielectric material for insulation, which can effectively prevent interference and enhance the reliability of signal transmission. The two-stage outer shell is made from Brass, and a casing is attached to the connector. This casing is made from a non-magnetic material. This ensures excellent shielding performance and low insertion loss.

Receptacle Types of BJ377

BJ377 coaxial connector has three types of receptacles. The first one is the threaded receptacle, which is designed to mate with the corresponding male connectors. The second one is the jam nut receptacle that can be directly mounted on the panel or casing. The third one is the floating type that can be mounted using screws.

The threaded receptacle of BJ377 is equipped with a coupling nut to provide a secure connection as well as a firm grip for tightening and loosening the connector. While jam nut receptacle has a pair of clamping nuts and is designed for flat surface mounting. The floating type of BJ377 has a movement range of +/- 0.5mm and is designed to be mounted on round surfaces with the help of screws.

Conclusion

From the above discussion, we can conclude that BJ377 is a kind of 50 Ohm 3.5mm subminiature precision coaxial connector that has many advantages for signal transmission in different fields. Its excellent shielding performance and low insertion loss have made it the perfect choice for applications that require a low profile, small size and a relatively stable electrical connection. BJ377 coaxial connector also has three types of receptacles, which can provide a secure and firm connection between the connectors. Moreover, its dielectric insulation can effectively prevent interference and guarantee a high signal performance.

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