CM6149R-474

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Common mode chokes (CMC) are an essential component in any electronic device or system that deals with electromagnetic interference or EMI. The primary purpose of a common mode choke is to reduce or block common mode noise, which could interfere with the operation of a device, system, or the signal it produces. A typical CMC includes a transformer-like structure comprising of a two-coil primary and one or two secondary windings, with each winding inductively coupled to the other.

CM6149R-474 is a common mode choke designed to provide high performance filtering of low frequency signals, such as EMI, at up to 30MHz. This choke features a toroidal core, which makes it easier to integrate into compact systems and allows for higher current flows at higher frequencies. It also features a flexible design with two primary windings winding in opposite direction, windings can be used simultaneously, and the secondary winding can be easily connected to the test circuit. This common mode choke is designed to be highly effective in noise suppressing and filtering applications, such as in power amplifiers, switching supplies, and various electronic components and systems.

In terms of application field, the CM6149R-474 is a great choice for any application where noise control is essential, such as in automotive, industrial or consumer electronics applications. This product is also well-suited for filtering high frequency interference related to audio/video equipment, power conversion, and automotive electronics. Additionally, it is often used in home entertainment systems and communications equipment.

The working principle of the CM6149R-474 is based on its two primary windings, which flow their induced currents in opposite directions. The magnetic field created by the two windings are thus offset, making it difficult for the interference to propagate through the choke. This also reduces the impedance of the two windings, allowing for high current fidelity and reduced insertion losses. The secondary windings of the choke provide a grounding return path for the common mode noise, which helps to isolate the interference from the hosts’ circuits.

The combination of the core and its windings make the CM6149R-474 a great choice for applications that require noise suppression and signal filtering up to 30MHz. Its high effectiveness and flexible design make it highly versatile and suitable for a wide variety of applications. With its excellent noise suppression characteristics, the CM6149R-474 allows systems and components to operate more effectively with reduced risk of interference or signal degradation.

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