CM5441Z990B-00

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Common Mode Chokes

CM5441Z990B-00 is an electronically regulated common mode choke, designed to suppress electromagnetic interference (EMI) that is created when two or more circuits transmit signals. In other words, it is used to stop interference from radiating between and within circuits. It is a common component in radio-frequency (RF) circuits, and consists of an inductor, usually wound on either a ferrite or iron-core, for filtering and passing electricity in a single direction.

The choke is made up of two coils, both wound with the same number of turns and spaced identically. When signals are transmitted, the coils resist the flow of alternating voltage and current (AC) in opposing directions. This creates a resistive voltage divider, by reaching a balanced state between the two coils. As a result, it stops the noise from radiating between circuits and provides filtering that blocks this type of interference.

CM5441Z990B-00 application fields include power supplies of radio device, motor drives, power amplifiers, and displays. Its coil winding enables the choke to suppress more noise types with higher efficiency than other products, by covering a broad frequency range. It can also reduce the number of components required, with its improved heat resistance and superior noise suppression benefits.

Its working principle is quite simple. It resists the flow of noise frequencies between two circuits, and maintains the balance between two coils. As a result, it filters and reduces common mode noise, improves the stability of circuits, reduces transmission interference, and improves signal performance. At the same time, it also prevents the noise from radiating away from the circuit, to ensure that only the desired signals are transmitted.

In conclusion, CM5441Z990B-00 is a common mode choke, designed to reduce noise and electromagnetic interference from being transmitted between circuits. With its broad frequency coverage and superior noise reduction benefits, it is well-suited for a variety of applications including radio devices, motor drives, power amplifiers, and displays. Its working principle relies on the two windings of the choke, both of which have a resistive voltage divider, which helps to ensure that only the desired signals are transmitted.

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