Three characteristics of BNC connectors

People who often purchase connectors must have heard of BNC connectors, so do you know what the three important features of BNC connectors are? If you are in a vague state about the three important features of BNC connectors, then the manufacturer of BNC connectors will introduce the three important features of BNC connectors to you. The three important performances of BNC connector are characteristic impedance, frequency and VSWR. The specific contents are as follows: 1. Characteristic impedance. The characteristic impedance of BNC connector is mostly 50 Ω and 75 Ω. Many series of BNC connectors are available in both 50 Ω and 75 Ω sizes. Generally speaking, 50Ω BNC connectors are mostly used for high frequency and high performance products; 75Ω BNC connectors are mostly used for products with lower frequency, mostly below 4GHz, especially for consumer electronic video products. The user shall select the BNC connector matched with its impedance according to its own product; 2. Frequency, each BNC connector has its own frequency range, and the user shall select the connector based on the working frequency of its own product. The selection of the connector with the working frequency lower than the requirement will affect the electrical performance of the whole machine; or the selection of the connector with high precision and high frequency, which is expensive, will cause waste. It should be noted that the use frequency of connectors designed by different companies is quite different, and the use frequency of inferior products is far from meeting the industry requirements. The user shall confirm the electrical performance description of the product when selecting the connector; 3. VSWR is one of the most important performance indicators of the BNC connector, and is the measurement standard for measuring the amount of signal returned from the connector. It is a vector unit, including amplitude and phase components. The VSWR of the same type of connector is different at different frequencies of use. In general, the higher the frequency of use, the higher the VSWR.

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