B82724J2502U040

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Common Mode Chokes are components used to isolate noise generated by high-frequency signals, which makes them an essential ingredient in all types of electronic circuits. Common mode chokes use coils wound around a magnetic core that act to filter out the unwanted signals. B82724J2502U040 is a common mode choke from TDK, which is ideal for power line applications. In this article, we will discuss the application field and working principle of B82724J2502U040.

B82724J2502U040 Application fields

The application field of B82724J2502U040 is mainly for power supplies and electronic appliances including mobile phones, laptop computers , TVs, LCD displays, set-top boxes, printers, copiers, washing machines, refrigerators, air conditioners, air purifiers, range hoods, electric water heaters, fans and other home appliances.

B82724J2502U040 is specifically designed to suppress noise and interference on the power line. It offers excellent performance in rejecting high-frequency electromagnetic interference (EMI) and radio frequency interference (RFI). The B82724J2502U040 has an operating frequency range of 20kHz to 20MHz and provides an isolation voltage of 50V.

In addition, B82724J2502U040 also meets the requirements of IEC 61000-4-4 (Class 3 & 4) and IEC 61000-4-6 (Class 3 & 4), which means it is ideal for use in various power line applications. It is also compliant to the RoHS and REACH regulations.

B82724J2502U040 Working Principle

B82724J2502U040 works on the principle of magnetic field. The basic functioning of all common mode chokes is same, despite the differences in their configuration and construction. It has two coils, one for differential mode and another for common mode. Both the coils are wound on the same magnetic core.

The differential mode coil helps in suppressing the differential mode current while the common mode coil filters out the common-mode noise from the power line. The elimination of the common-mode noise is achieved by building an inductive filter network between the power line and the ground.

The common-mode coil helps to create a cancellation effect when the same signal is present in both coils. This creates a “virtual ground” that will reject any common-mode noise. The B82724J2502U040 also has an integrated heat sink to reduce its self-temperature rise.

Conclusion

B82724J2502U040 is a common mode choke from TDK designed for power line applications. It has two coils, one for differential mode current and another for common mode current. The common-mode coil helps to create a cancellation effect when the same signal is present in both coils, thus creating a virtual ground that rejects any common-mode noise. B82724J2502U040 is compliant to the RoHS and REACH regulations and is ideal for use in various power line applications.

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