LB4X2X8U

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Ferrite Beads and Chips

Ferrite beads and chips are small components used in electronic circuits to reduce interference, both from the outside and within the circuit board itself. This article will discuss the LB4X2X8U application field and working principle.

What Is LB4X2X8U?

The LB4X2X8U is a ferrite bead or chip. The LB stands for ‘Large Bead’, the 4X2X8U represents the physical size and shape of the component. They are available in various sizes, to best meet the size requirements of the circuit in which they are used.

Application Field

The LB4X2X8U is primarily used to reduce electromagnetic interference (EMI) in different circuits. EMI is a common problem that occurs when unwanted signals from outside sources or within the circuit board itself interfere with the signals travelling through the circuit. The interference can cause the circuit to malfunction and even cause it to become permanently damaged. By inserting the LB4X2X8U into the circuit, the EMI is greatly reduced, allowing for the circuit to operate normally.

Due to their ability to reduce EMI, ferrite beads and chips are used in a variety of applications, such as telecoms equipment and automotive, aerospace and medical electronics. Ferrite beads and chips are also used in RF shielding and filtering, LCD displays, computer peripherals and consumer electronics.

Working Principle

The LB4X2X8U ferrite bead or chip reduces EMI by creating an inductor, as it works similarly to an inductor coil. As the current in the circuit flows, the ferrite bead or chip creates a magnetic field around itself. This magnetic field is then used to reduce the EMI in the circuit as the waves from the interference are cancelled out by the magnetic field.

The LB4X2X8U has a high impedance to high frequency interference, making it ideal for applications that require low power electrical signals, such as automotive, medical and aerospace electronics. It has an impedance range of from 0.1 ohms to 50 kilo-ohms, with a peak resonance frequency range of between 1 megahertz and 1 gigahertz.

Conclusion

The LB4X2X8U ferrite bead or chip is an important component used for reducing EMI in circuits. It works by creating an inductor, which generates a magnetic field to cancel out EMI waves. This makes it suitable for a wide variety of applications, such as telecoms equipment, automotive, aerospace, medical electronics and consumer electronics.

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