B82790C0253N201

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Common Mode Chokes are passive components used to reduce Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI) in electronic circuits, and B82790C0253N201 is a special type of Common Mode Choke. It is mainly used in applications where very high common-mode suppression is desired across a broad frequency range.

What is B82790C0253N201?

B82790C0253N201 is a Common Mode Choke developed by EPCOS, that offers very wideband common-mode suppression of radiated and/or conducted interference signals in applications. The choke consists of an outer core made of thermoplastic polyester. The diameter of the outer core has a dimension of 8.8mm, and its low profile makes it suitable as a base unit or for use when space is limited. It has a maximum rated temperature of 125°C and an ambient temperature of -45°C to +125°C. The base material is iron powder with a lacquer insulation.

Application Field of B82790C0253N201

The primary application field for B82790C0253N201 is for EMC interference suppression on shielded cables and other circuits, and it is designed to provide extremely high common-mode suppression. As such, it is most often used in data acquisition systems, telecommunications systems, high frequency applications, and medical applications. B82790C0253N201 is also recommended for power and signal line filters.

Working Principle of B82790C0253N201

The core of the B82790C0253N201 is constructed from a permeable ferrite material that surrounds the conductors of a cable. This permeable material easily absorbs common-mode interference signals when an external electromagnetic field is present. The outer core material then distributes and dissipates the energy from these interference signals.

The choke also utilizes a winding or inductive effect to block or attenuate disruptive common-mode noise. This is done by wrapping the conductors in wire that produces an electrostatic field, which acts to oppose the flow of interference signals. This winding can be routed around the core, or it can be partially embedded in the core. As this winding affects the flow of current, it also helps to reduce the inductance associated with the EMC interference.

B82790C0253N201 also utilizes a capacitor effect to reduce common-mode interference. This is done by constructing the choke with a small iron-based core material, which naturally has a low capacitance. By utilizing a combination of the inductive and capacitive effects described above, B82790C0253N201 is able to provide extremely high levels of common-mode suppression over a wide range of frequencies.

Conclusion

As one of the most effective EMC suppression components available, B82790C0253N201 is often used in applications where minimal space and high levels of common-mode suppression are necessary. Its use is widespread in many industries, from military electronic systems, medical devices to automotive components. It is also one of the most reliable components on the market, offering a long service life and outstanding interference suppression. This makes it an ideal choice for any application requiring an effective EMC suppression solution.

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