ACMF-21A

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Common Mode Chokes have been used in various industries to reduce electrical interference and noise in power systems for many years. Recently, one particular choke, the ACMF-21A, has been widely adopted in a number of sectors. In this article, we will discuss the application fields and working principle of the ACMF-21A.

The ACMF-21A is designed with multiple, isolation-coil windings around a ferrite core, allowing it to provide effective, high-resolution filtering and attenuation of noise and interference. It is suitable for many electrical circuit applications, such as industrial automation, office equipment, power electronics, home appliances, and renewable energy systems. Specifically, it is useful in applications where high energy noise near high-frequency power lines is a concern.

The ACMF-21A is able to suppress differential-mode noise and common-mode noise. Its common-mode noise suppression is due to the choke\'s unique construction. Its multiple coil windings are designed to form dual inductive loops, connected in series with each other. Each inductive loop increases the common-mode impedance of in-phase power lines, while also providing a path for common-mode currents to flow between the power lines. This effectively reduces the amount of electromagnetic interference and increases the protection against power line disturbances.

The ACMF-21A is also capable of providing a reliable shield against external interference, such as radio-frequency interference (RFI) or electromagnetic interference (EMI). Its shield can provide effective attenuation for in-phase power lines, with a maximum of 80dB of effective shielding. This makes it ideal for applications that require highly sensitive operations, where any interference can cause significant damage.

The ACMF-21A is also designed to provide effective surge protection. Its internal capacitors are designed to dissipate any sudden increases in common-mode currents, thus providing extra protection against power outage or voltage spikes. This also reduces the risk of electric arcs occurring inside the filter.

The ACMF-21A can be used in a wide variety of applications due to its wide common-mode noise suppression range. It can provide effective attenuation for frequencies up to 1MHz, with an insertion loss of 120dB. This makes it ideal for use in many applications, where high-frequency noise is a major issue.

In summary, the ACMF-21A is a highly effective common-mode choke, designed to provide effective filtering and attenuation of noise and interference. It is suitable for a wide variety of applications, including industrial automation, office equipment, power electronics, home appliances and renewable energy systems. It is also capable of providing effective shield against external interference, as well as surge protection against power line disturbances.

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