LI0402E600R-10 Filters

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Ferrite beads and chips are amongst the most important components for managing electrical noise in modern electronics. A ferrite bead is essentially an inductor that often takes the form of a small stripe of ferrite material that divides a conductor in two, thus providing inductance in the circuit. Ferrite chips are essentially just a multi-layer ferrite wrapped around a conductor for the same purpose. LI0402E600R-10 is a widely used ferrite bead. In this article, we’ll look at the application field of this component and the working principle that makes it effective.

Application Field

The LI0402E600R-10 ferrite bead is a highly effective EMI suppressor designed for surface-mount applications. This replaceable high-frequency noise suppressor is suitable for a wide range of electronic applications ranging from consumer electronic products, such as smartphones and PCs, to video and audio equipment. It is particularly effective in suppressing common-mode noise and crosstalk noise on high-frequency signal lines between 100MHz and 1GHz.

Working Principle

Ferrite beads work by providing inductance within a conductor that acts to impede the transfer of electromagnetic energy. This inductance creates a resistance to the flow of electrons and thus suppresses the transmission of electromagnetic signals travelling along the conductor. In the case of the LI0402E600R-10 ferrite bead, this inductance is provided by a multi-layer ferrite structure wrapped around a conductor. This construction enables the component to provide an inductance of up to 600 ohms – enough to break the connection between high-frequency signals on different signal lines.

The inductance of the ferrite bead also acts to absorb high-frequency signals travelling through the conductor, further suppressing any noise generated by these signals. This absorption can be further increased by using a ferrite chip – a multi-layer ferrite wrapped around a conductor with angled edges that act to further absorb the signal. Ferrite chips can be stacked to provide even greater absorptive power, making them ideal for large-scale applications such as in the automotive industry.

Conclusion

The LI0402E600R-10 ferrite bead is a widely used component for managing electrical noise in modern electronics. It uses a multi-layer ferrite structure to provide up to 600 ohms of inductance, breaking the connection between high-frequency signals on different signal lines and absorbing high-frequency signals travelling through them. This makes it an ideal choice for many applications, from consumer electronics to the automotive industry.

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