CIS21P300NE Filters

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Ferrite beads and chips play a central role in the career of electrical engineers and often appear in the form of CIs 21P300NE. These durable components possess excellent resistance properties, enabling them to offer protection against fluctuations and interference in the systems that they belong to. This article will provide an overview of the application field and working principle of CIs 21P300NE.

CIs 21P300NE is a type of ferrite bead that is designed to be used in low-impedance applications. It is composed of an outer shell and a ferrite core. The core is made up of a mixture of powdered magnets and active material such as carbon black, epoxy, or ceramic. The outer shell is typically made of plastic, and it can be colored to easily identify the component on a PCB. CIs 21P300NE is sometimes packaged with a leadless terminals, which simplifies the assembly of the bead onto a PCB.

CIs 21P300NE is used to provide electrical shielding and noise reduction. Its core enables it to function as a low-impedance line filter that attenuates high-frequency noise produced by digital signals. The core also acts as a barrier against electromagnetic fields. In this way, CIs 21P300NE filters out high-frequency interference before it can reach an integrated circuit, thus preventing it from causing disruptions in the circuit’s operation. CIs 21P300NE can be used in a variety of applications, such as audio equipment, consumer electronics, power supplies, cellular phones, data acquisition systems, and computer networks.

The working principle of CIs 21P300NE is simple. When an electrical current passes through the bead, its core becomes magnetized. This magnetization sets up a magnetic field around the bead, which attracts most of the high-frequency noise in the vicinity. As this noise reaches the bead, it is diverted away from the sensitive components on the PCB. Additionally, since the bead has low impedance, most of the current is diverted around the bead, thus reducing the effects of the current on the components on the PCB.

In summary, CIs 21P300NE is a type of ferrite bead that has excellent noise-reducing and electrical-shielding properties. It is designed to be used in low-impedance line filter applications. Its working principle is based on the magnetic field that is generated when an electrical current passes through the bead, which attracts nearby noise and diverts it away from the sensitive components on the PCB. CIs 21P300NE can be used in a wide range of applications, such as audio equipment, consumer electronics, power supplies, cellular phones, data acquisition systems, and computer networks.

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