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Common Mode Chokes

Common Mode Chokes are passive devices mainly used in applications involving transmission of electricity and signals. They act as a low pass filter, allowing low frequency waves to pass through while blocking high frequency waves. Common mode chokes are most commonly used in DC-DC converters, AC-DC converters, and other power conversion applications in order to reduce electromagnetic interference (EMI).

PLA10AN2021R3D2B is one of the families of common mode chokes produced by the TDK Corporation. It is a surface mount common mode choke, designed to be suitable for board mounting in DC-DC converters, switches, and other applications. The device has a 3-D structure, which helps improve its performance compared to regular chokes.

Application Fields

The PLA10AN2021R3D2B can be applied in a variety of power conversion and EMI reduction applications, including DC-DC converters, AC-DC converters, etc. It is suitable for board mounting and can also be used in motor drives, power supplies, LED lighting systems, and automotive electronics. This particular variant of common mode chokes features a low DCR, high attenuation, low temperature coefficient, and low inductance.

Working Principle

The PLA10AN2021R3D2B works by filtering out unwanted high frequency noise or interference from the signal. This is done by passing it through an inductor, which helps the device block noise in specific frequencies. The device also features an additional core material which helps to reduce high-frequency EMI radiation. This helps to prevent any interference with other electronic devices, and helps to improve the overall performance and efficiency of the system.

These kinds of common mode chokes are capable of providing superior EMI performance compared to regular common mode chokes. The low temperature coefficient helps to reduce power consumption, while the high attenuation helps to improve system performance by suppressing noise at specific frequencies. Additionally, the 3-D structure of the PLA10AN2021R3D2B helps to improve its overall performance, providing better EMI attenuation than regular chokes.

Conclusion

The PLA10AN2021R3D2B common mode choke offers a reliable and efficient noise reduction solution for systems requiring board mounting and higher EMI performance when compared to other common mode chokes. It can be applied in power conversion applications such as DC-DC converters, AC-DC converters, motor drives, power supplies, LED lighting systems, and automotive electronics. The device works by filtering out unwanted noise or interference through an inductor and overcoming the interference through an additional core material. With a low temperature coefficient and high attenuation this particular variant of a common mode choke provides superior EMI performance compared to regular common mode chokes.

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