CMT2-3-R

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Common Mode Chokes (CMC) are electrical components designed for preventing electromagnetic interference in communication circuits. The CMT2-3-R is a special type of CMC designed for radio frequency applications. It is a dual common mode choke with an impedance of 3Ω and works at frequencies up to 200MHz. As the name suggests, CMT2-3-R works by blocking the spread of undesired common-mode signals through communication circuits.

This particular device is constructed with four ferrite cores and features a multilayer PCB board. The ferrite core material used is N27 type magnetic material, and the maximum current that can pass through it is 1.5A. CMT2-3-R is designed to reduce both conducted and radiated interference and is suitable in applications such as broadcast equipment, radio receivers, digital TVs, set-top boxes, communication systems, and satellite systems.

The working principle of CMT2-3-R is based on the the theory of electromagnetic induction. This theory states that a changing magnetic field produces an electric current in a conductor, and vice versa. When the CMT2-3-R is connected across two conductors of a communication circuit, its ferrite magnetic cores generate a magnetic field in the space between them. This field, in turn, induces an opposing electric current that opposes the spread of undesired common-mode signals along the communication cable.

The components of CMT2-3-R provide not only electromagnetic shielding, but also a low impedance path for common-mode signals. This helps to prevent overloading of equipment by reducing the impact of high frequency noise and reducing the power losses in the communication circuit. The construction of CMT2-3-R is designed to be compact and lightweight for easy installation in tight spaces.

CMT2-3-R is well suited for use in environments where high-frequency transmissions are present. The device is also capable of reducing conducted and radiated interference levels. It can be used in a wide range of applications where protection against noise and interference is needed, such as digital TV, set-top boxes, and communication systems.

In summary, CMT2-3-R is a type of CMC designed for radio frequency applications. It is constructed with four ferrite cores and is designed to reduce conducted and radiated interference levels. Its working principle is based on the the theory of electromagnetic induction, where a changing magnetic field induces a current to oppose the spread of undesired common-mode signals. CMT2-3-R is well suited for use in digital TV, set-top boxes, and communication systems where high-frequency transmissions are present.

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