LI0402E800R-10 Filters

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Ferrite Beads and Chips are commonly used electronic components that serve a variety of purposes, such as suppressing electromagnetic interference (EMI) and protecting circuits from excessive current. One of the most popular ferrite beads is the LI0402E800R-10. This bead model makes use of its small size, low resistance, wide frequency range, and high performance to provide quality EMI protection.

Application Field

The LI0402E800R-10 is a ferrite bead designed with EMI suppression in mind. It is ideal for suppressing high-frequency signals emitted by a variety of digital circuits, and is perfect for applications such as mobile phone consoles, hard disk drives, and set top boxes. It can also be used in analogue electronic devices, such as audio amplifiers and video game consoles, as well as in many automotive applications.

Working Principle

The LI0402E800R-10 works on the principle of inductive filtering. At high frequencies, the inductive properties of the bead reduce the amount of current that is able to flow through it. This type of ferrite bead responds to frequency changes, with higher frequencies creating higher inductance and lower frequencies creating lower inductance.

The LI0402E800R-10 is designed to provide optimal performance over a wide range of frequencies. Its resonance frequency is very low, meaning it can effectively block high-frequency noise, and its self-resonance is extremely high, meaning it performs extremely well in high-frequency applications.

In addition, the LI0402E800R-10 ferrite bead helps reduce common-mode current and provides good high-frequency signal integrity. Its low resistance also reduces the power dissipation, ensuring that the component stays cool during operation.

Advantages

The LI0402E800R-10 offers several advantages:

• Low cost.
• High performance in high-frequency applications.
• Good high-frequency signal integrity and common-mode current reduction.
• High self-resonance, leading to increased filtering performance.
• Compact size.

Conclusion

The LI0402E800R-10 is a versatile ferrite bead designed to provide effective EMI protection in a wide range of applications. With its low cost, high performance, and high self-resonance, it is an ideal component for use in digital and analogue devices, as well as in automotive applications.

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