B82724J2142N021

Common mode chokes (CMCs) are electronic components utilized across multiple industries to effectively reduce noise from electromagnetic interference (EMI) and radio frequency interference (RFI). The function of these components is to filter out the undesired frequencies through electrical impedance, allowing the desired signal frequencies to pass unaffected. The B82724J2142N021 is a common mode choke designed and manufactured by the EPCOS brand. It supports a wide range of frequencies and has superior performance in the face of high temperature levels.

B82724J2142N021 Application Field

The B82724J2142N021 is a common mode choke suitable for high-frequency applications in hazardous and harsh environments. It is a popular choice due to its high impedance values, high scope of operating temperature, and reliable performance in the presence of severe vibration and shock. The device can be used in a variety of applications, including:

• Medical devices such as patient monitoring systems, helipad alerts, medical imaging equipment and radiation therapy systems
• Industrial automation machinery and other equipment used in the automotive industry
• Communication and entertainment electronic equipment ranging from cellular phones to radio-frequency (RF) systems.

B82724J2142N021 Working Principle

The function of a common mode choke is to filter out noise from EMI and RFI by blocking the undesired frequencies and allowing the desired frequencies to pass unaffected. The B82724J2142N021 is built with ferrite beads, which bead structures are created from ferrite, a ceramic material made from iron and oxygen. The ferrite beads form an electrical impedance, only allowing the pass of electromagnetic signals within its specified frequency range.

The B82724J2142N021 is designed with two identical windings that are located adjacent to each other. The windings are electrically interconnected through an internal capacitor. This creates an inductive reactance, reducing the amount of radiating energy and calling the desired outcome. As such, any external signals or interference within the unwanted frequency range will be blocked before reaching the device, thus improving signal quality.

Conclusion

The B82724J2142N021 is a common mode choke designed and manufactured by EPCOS. It is suitable for high-frequency applications such as medical devices, industrial automation machinery, and communication and entertainment electronic equipment. The choke works towards filtering out noise from EMI and RFI frequencies by blocking the undesired signals and allowing the desired frequencies to pass unaffected. This helps improve the signal quality and performance of the electronic equipment, while also protecting it from potential damage.