RT8522-16-4M0

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Common Mode Chokes are a form of inductor that is designed to block high-frequency interference currents in the transmission line while allowing low-frequency, steady-state signals to flow. The RT8522-16-4M0 is an example of a Common Mode Choke, so its application field and working principle should be understood in order to use it properly.

Application Field

In general, the application field of Common Mode Chokes can be divided into three areas. First, it can be used for communication line interference suppression, such as telephone, VGA, etc. In this case, the choke functions by modifying the impedance of the line in order to reduce or even block the interference current. Secondly, the choke can used for shielding of cables that carry sensitive signals, such as USB, IEEE 1394, etc. In this case, the choke functions by effectively inducing the signal to the line and preventing it from leaking. Finally, the choke can also be used for power supply or audio line antenna suppression, as it can help reduce the EMI radiation from the system. In this case, the choke functions by reducing the current in the antenna.

Working Principle

The RT8522-16-4M0 Common Mode Choke uses ferrite core material which is a high-permeability material. This material has dual function, as it is able to block low frequency signals while allowing high frequency currents to bypass it.The choke operates in a manner wherein the high frequency current is magnetically coupled with the core, and is redirected through the ground thereby preventing it from reaching the target circuit. The choke also features two winding coils which work together in order inhibit high frequency currents.

The RT8522-16-4M0 Common Mode Choke also features an integrated capacitor. The capacitor functions by adjusting the choke\'s impedance, thereby increasing or decreasing its effectiveness against high frequency interference. Furthermore, the capacitor also helps reduce the noise in the system and improves EMI suppression performance.

Conclusion

In conclusion, the RT8522-16-4M0 Common Mode Choke has various applications, such as communication line interference suppression, shielding cables that carry sensitive signals, and power supply or audio line antenna suppression. This type of choke also features a ferrite core which makes it effective against high frequency interference currents by magnetically coupling and redirecting them through the ground. Finally, the choke also features an integrated capacitor which helps reduce the noise in the system and improves EMI suppression performance.

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