RN112-0.6-02-15M

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Common Mode Chokes (CMC) are typically used in electro-magnetic suppression filter circuits to reduce the passage of common-mode RF/EMI noise and lower the mutual interference between different signals. The RN112-0.6-02-15M is an example of a CMC.

Application field

The RN112-0.6-02-15M is designed for the communication/networking industry. It is typically used in Ethernet and other fast-forward gigabit networks where signal transmission quality needs to be maintained. They are often used in Ethernet applications such as setting up LANs or switching lines, and can also be used to filter out noise created by components used in communication technologies such as mobile phones, Wi-Fi, Bluetooth, and others.

It is also used in power supplies, especially those that contain high-frequency switching components such as switched mode power supplies (SMPS), as CMCs can help reduce common-mode noise emissions and allow safe operations. It is also used in medical devices, such as X-ray machines, MRI scanners, and patient monitors, as CMCs can shield low-frequency biological signals.

Working Principle

A common mode choke is an inductor made up of multiple coils of wire wrapped around a ferromagnetic core. The coil of the choke has a very high inductance, typically in the millihenry range, which allows it to provide electro-magnetic suppression over a wide frequency range.

When exposed to an alternating current, the choke will generate a magnetic field which acts as a kind of ‘wall’ to the current, blocking the passage of common-mode noise. The magnetic field also redirects any current which tries to pass through, thereby reducing the mutual interference between different signals. This helps maintain good communication and data transmission quality and reliable operations.

In addition, CMCs can also be used to reduce the amount of EMI radiated from the circuit, or the amount of EMI picked up by the circuit. This is done using a combination of ferrite material and shielding, which absorb and reflects the EMI.

Conclusion

Overall, the RN112-0.6-02-15M is an example of a common mode choke which is used in electro-magnetic suppression filter circuits to reduce the passage of common-mode RF/EMI noise and lower the mutual interference between different signals. It is designed for the communication/networking industry, and is also used in power supplies and medical devices. The working principle of the choke is based on the fact that the coil of the choke has a very high inductance, which causes it to generate a magnetic field which suppresses the passage of common-mode noise, and redirects any current which tries to pass through. In addition, CMCs can also be used to reduce the amount of EMI radiated from or picked up by the circuit.

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