SS21V-R080200

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Common Mode Chokes, also known as CM chokes or baluns, are components used to reject and attenuate high frequency signals. A common application for CM chokes is the suppression of common-mode noise from cables and line power, which can be harmful for other electronic equipment connected to the same power line. The SS21V-R080200 is a type of CM choke with a very high frequency cut-off, designed for use in high speed data links.

Application Field

The SS21V-R080200 was designed for applications where both bandwidth and common-mode noise suppression must be optimized. When applied on the input of a data link, the SS21V-R080200 helps reduce the amount of common-mode noise entering the system, providing improved signal integrity. It is also suitable for applications requiring high-frequency cut-off and high-speed data transfer. This CM choke is typically used in communications, industrial control systems, and medical equipment.

Working Principle

The SS21V-R080200 is an auto-balancing type CM choke, meaning that it can also reject common-mode noise by forming a differential current at the similar frequency. This differential current is generated when two coils, both supplied with a similar signal, are placed in proximity with each other. The resulting differential current running between the two coils “cancels” the common-mode noise signal, suppressing it before it can contaminate other signals or equipment in the vicinity.

The SS21V-R080200 is an ideal EMI/RFI shield owing to its auto-balancing property and its extremely high frequency cut-off, which can reach up to 4GHz. An additional benefit of the SS21V-R080200 is its high impedance when operated in differential modes, providing excellent noise suppression. This makes it a great solution for data link lines where common-mode noise must be suppressed.

The SS21V-R080200 is also a great solution for applications which require a wide bandwidth, such as industrial process control systems, telecommunications and medical equipment. In these applications, the device helps ensure that signal integrity remains high, even in the presence of high amounts of common-mode noise.

The SS21V-R080200 is available in various circuit configurations and custom versions. Designers can choose to incorporate the CM choke into their application by selecting a matching input capacitor or filter, or by directly connecting the device to the power line.

In summary, the SS21V-R080200 is an ideal solution for applications requiring high-performance EMI and RFI noise suppression. Its auto-balancing property and wide frequency cut-off make it an ideal choice for shielding common-mode noise from cables and line power, helping to protect sensitive electronic equipment from interference.

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