EMI0805R-300

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Ferrite beads and chips are sintered units composed of materials such as barium ferrite, strontium ferrite and zinc ferrite. They are used to reduce EMI noise and help protect systems from electrical failure. They can also limit in-rush currents and help protect against ESD.Recently, the EMI0805R-300 ferrite chip has emerged as a reliable and effective solution for EMI precipitators. It is a two-terminal, electrode-separated overload protection chip designed to protect sensitive electronic equipment against EMI noise.

Application Field of EMI0805R-300The EMI0805R-300 is ideal for general-purpose applications, as well as for EMI data line protection applications such as the Computer Peripherals Interface (CAPI). It is designed for applications such as USB, IEEE-1394, DVI, HDMI, and Serial ATA cable protection. It is also used in the protection of two-terminal buses and driving motors, where two-terminal bus protection is necessary for both EMI and overvoltage.

Working Principle

The EMI0805R-300 ferrite chip works by suppressing EMI noise through its magnetic field, reducing the amount of noise transmitted in the circuit. The EMI0805R-300 ferrite chip has two opposing terminals, magnetically coupled by the material in the core. Depending on the position of the material in the core and the size of the gap, the magnetic field between the two terminals is able to absorb EMI noise and reduce its effect on the circuit. The magnetic field generated by the chip is directly related to the current passing through it. As the current increases, the intensity of the magnetic field is also enhanced.

In addition to its ability to suppress EMI noise, the chip also features a built-in capacitive overload protection that helps prevent permanent damage to sensitive electronic components. This overload protection ensures that the circuit is only exposed to safe levels of EMI noise and keeps the circuit functioning properly.

Advantages/Disadvantages of EMI0805R-300

The main advantage of the EMI0805R-300 ferrite chip is its ability to protect circuits from EMI noise. The overload protection ensures that the circuit stays safe from damaging currents and keeps the electronic components working properly. The chip is also small and compact, making it ideal for protecting sensitive parts in tight spaces.

The main disadvantage of the EMI0805R-300 ferrite chip is its limited current rating. The chip is only rated for up to 1.5A, meaning it is not suitable for applications that require higher current handling. Its small size also makes it difficult to use in applications where space is at a premium.

Conclusion

The EMI0805R-300 ferrite chip is a reliable and effective solution for EMI protection. Its two-terminal design allows it to limit in-rush currents, helping protect against ESD. It also features a built-in capacitive overload protection to ensure that sensitive electronic components are not exposed to dangerous levels of EMI noise. The small size and easy installation make it ideal for use in tight spaces. However, its limited current rating makes it unsuitable for applications that require higher current handling.

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