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About BNC Connector Characteristics Introduction


The applicable frequency range of the BNC connector is 0~4GHz. It is a coaxial cable connector with a bayonet connection mechanism for low power. This kind of connector can be connected and separated quickly, has the characteristics of a reliable connection, good vibration resistance, convenient connection, and separation, etc., suitable for frequent connection and separation occasions, and is widely used for connecting coaxial radio frequency cables in radio equipment and test instruments.

BNC connector is a very common RF terminal coaxial cable terminator. It consists of a center needle, a jacket, and a card seat. It includes three parts: base, cover, and probe. The BNC connector is very similar to the B terminal and C terminal. A threaded connector TNC (Threaded Neill-Concelman) has better performance in the microwave band than BNC.

BNC Connector

BNC connectors are available in 50-ohm and 75-ohm versions. When the 50-ohm connector is connected with other impedance cables, the possibility of transmission errors is less. Connectors of different versions are compatible with each other, but if the cable impedance is different, the signal may reflect. Usually can be used in 4GHz or 2GHz. 75-ohm connectors are used for video and DS3 connections to the telephone company central office, while 50-ohm connectors are used for data and radio frequency transmission. A 50-ohm plug that is incorrectly connected to a 75-ohm socket may damage the socket. 75 Ohm connectors are used in VHF applications.

It is used for the transmission of radio frequency signals, including the transmission of analog or digital video signals, the connection of amateur radio equipment antennas, the connection of avionics and other electronic test equipment. In the consumer electronics field, the BNC connector used for video signal transmission has been replaced by the RCA terminal. Through a simple adapter, the RCA terminal can be used on equipment that only has a BNC connector. BNC terminals have been widely used in 10base2 Ethernet. Because the coaxial cable is replaced by twisted pair, it is difficult to see the network card with BNC terminals. Some ARCNET networks have coaxial cables terminated with BNC terminals.

The information is provided by the BNC connector supplier.