CMS2-3-R

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Common Mode Chokes (CMCs) are a type of electromagnetic device used in low-voltage and high-frequency applications. They are designed to provide an efficient current blocking between two conductors. The CMC is a multi-layered electromagnetic device typically composed of two wound toroidal coils, separated by an air gap or insulation material. An alternating current induced into one of the coils will cause a stationary magnetic field to develop in the air gap, creating a current blocking effect between the two coils.

The impedance or voltage drop of a CMC is proportional to the frequency of the AC current induced into it. This makes them suitable for applications where a high frequency current needs to be blocked from entering an adjacent circuit. Typical applications include the protection of sensitive equipment from radio frequency interference, the protection of electronic components from static electricity, and the control of the common-mode current in communication cables.

The CMC\'s multilayered design makes them especially suitable for radio-frequency applications. The layers of the CMC form a distributed inductance, resulting in a uniform frequency response over a wide range of frequencies. This makes them an ideal choice for suppressing common-mode noise in high-frequency signals.

The CMC\'s flexibility and high level of performance make them especially popular for use in a variety of industrial and consumer applications. CMCs can be used in the protection of sensitive equipment from induction and electrostatic discharge. Other applications include the control of common-mode currents in Ethernet cables, as well as the filtering of AC power lines to suppress noise and other interference.

The CMS2-3-R is a type of CMC specifically designed for use in radio-frequency applications. These CMCs have a typical operating frequency range of 0.27-10 MHz, with a maximum differential voltage of 60 Volts and a maximum common-mode current of 50mA. The CMC consists of two integrated coils, each wound around a ferrite core. The coils are separated by an air gap or insulation material, providing a secure barrier between the two.

The operating principle of the CMS2-3-R is based on the mutual inductance between the two coils. When an alternating current is induced into one of the coils, it will create a magnetic field in the air gap between them. This magnetic field will interact with the second coil, inducing a current in the opposite direction and blocking the current from being transmitted across the coil.

The CMS2-3-R CMC is also designed to minimize the effects of external magnetic fields. The two coils are wound in opposite directions, thereby cancelling out any external fields and preventing them from interfering with the CMC’s operation. The coils also have a steel casing which helps to shield them from external electromagnetic interference.

The CMS2-3-R is a highly efficient device, providing excellent protection against common-mode noise. It is suitable for use in a variety of applications, including the filtering of AC power lines, the suppression of high-frequency noise in cables, and the protection of sensitive equipment from electrostatic discharge.

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