CS25B4000

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Ferrite Cores are a type of Technology used in cables and wiring applications. These magnets provide an electrical shielding from electromagnetic interference (EMI), and are frequently used in electrical equipment to protect the signal from interference. CS25B4000 ferrite cores are one of the most popular categories of magnetics used for this purpose. This article will provide an overview of the CS25B4000 application field and working principle.

Application Field

The CS25B4000 ferrite cores are highly versatile and are used for a variety of applications, including:

• EMI, RF, and ESD (electrostatic discharge) protection for cables and wiring
• Inductors for AC-DC power line filters
• In radio frequency (RF) receivers
• As part of an Inductive Sensor System
• In Mobile/Cell phones or computers

The ferrite cores are typically used in combination with other components, such as capacitors and transformers, to provide attenuation of EMI, RF, and ESD signals. The combination of components and the ferrite core determines the level of signal attenuation and ultimately the effectiveness of the filtering.

Working Principle

The basic principle of operation of a ferrite core is that it is a magnetically permeable material, which means it can store magnetic energy. This process is known as magnetization. When electric current passes through the ferrite core, it is subjected to saturation. Saturation is a process which occurs when the magnetism in the core reaches a maximum value and can no longer be increased. This maximum value is referred to as the saturation point.

The magnetic field created by the passing current "induces" a voltage in the core, which is equivalent to the magnitude of the current. This induced voltage opposes the original voltage, resulting in a reduction in the amplitude of the voltage. This is referred to as the "impedance".

The CS25B4000 ferrite core also has a very low “coercivity”, which means it can be easily magnetized and demagnetized by an external field such as a current or voltage. The low coercivity also makes it less susceptible to the effects of ambient temperature, humidity, and pressure changes.

The CS25B4000 is particularly popular due to its high frequency characteristics. It has a high inductance, low capacitance, and low resistance, making it ideal for multiple concurrent frequency applications. These attributes allow the core to have the highest signal-to-noise ratio in the industry and reduce the interference caused by nearby equipment.

Conclusion

The CS25B4000 ferrite core is an efficient and highly versatile product which can be used for a wide range of applications. Its low coercivity and high frequency characteristics make it an excellent choice for EMI, RF, and ESD protection, as well as for other applications such as inductors and inductive sensing systems. The combination of these features make the CS25B4000 an ideal choice for those seeking to reduce the interference caused by mobile electronic devices or to provide a reliable solution for concurrent frequency applications.

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