SB28B2000

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Ferrite Cores - Cables and Wiring

SB28B2000 is a general purpose and popular type of ferrite core. It is made of Nichrome-Iron material that is well suited in cable applications for providing frequenty power and signal carrying capabilities. Located near the cable connectors, this ferrite core ensures that any excess energy or impedance mismatch caused by adjacent conductor elements are adequately grounded.

Application field

SB28B2000 is ideal for EMI (electromagnetic interference) and RFI (radio frequency interference) screening in a large range of electronic components. This is an extremely versatile core that can be used for dozens of applications that range from shielding electronic cables to decoupling active components and can even be used for providing a simple Signal filter.

For example, the SB28B2000 can be used for providing immunity to EMI/RFI interference in automobiles, aircraft, cellular phones, medical equipment, audio/video equipment, etc. It\'s also widely used for wide area networks, computer networks and consumer electronics due to its low cost and high efficiency in shielding and attenuating these frequencies.

Working Principle

The SB28B2000 ferrite core works based on the principles of magnetic permeability and phase shifting. By wrapping or coiling the cable around the ferrite core, the material\'s magnetic nature will magnetically couple any EMI/RFI signals to the iron core, thus providing a low impedance path between the cable connectors and shield.

At the same time, this core will also help to reduce the level of EMI/RFI signales reaching the sensitive components as it will absorb some of the signals due to its high permeability level. In addition to this, the core will also help provide phase-shifting benefits as any EMI/RFI signals will bounce off its surface, which in turn creates counteracting fields and ultimately helps to reduce the level of the interfering signals.

Conclusion

The SB28B2000 ferrite core is a versatile and cost-effective solution that can provide excellent EMI/RFI protection in a variety of setting, ranging from cars, aircrafts and consumer electronics. Its working principle is based on Magnetic permeability and phase shifting techniques that absorb and redistribute EMI/RFI signals, providing a low impedance path without negatively affecting the performance of the cable.

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