CMT-8103

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Common Mode Chokes, also known as common mode filters, are electromagnetic components used to provide noise filtering for power supplies. The CMT-8103 is a common mode choke designed for noise filtering on High voltage AC/DC rectifier power supplies. This article will explain the application field and working principle of the CMT-8103.

The CMT-8103 is a large core common mode choke with an approximate dimension of 55mm long and 19mm wide. It is rated at a current rating of 2.5A maximum, making it ideal for applications where differential mode current is low, such as power supplies and high voltage AC/DC rectifiers. The CMT-8103 is designed to provide very high noise attenuation (typically in the range of 20-50dB) at high voltage, while its very low resonance makes it suitable for use in high frequency applications.

The CMT-8103 is mainly used as a noise filter for high voltage AC/DC rectifier power supplies. In this application, the CMT-8103 is typically installed in-series between the ac input and the input of the rectifier. This helps reduce noise, spikes, and hum caused by any interference from the input mains and ensures that the output of the rectifier is clean and reliable. The CMT-8103 can also be used as a power line filter for suppressing common mode noise in other power and signal cables.

The working principle of the CMT-8103 is relatively simple. It works by using the magnetic properties of a ferrite core to create an electromagnetic field, which acts to cancel out any interference or noise on the power line. As the current is transmitted through the filter, a voltage difference is created between the power source and the load, which cancels out any interference. This helps to reduce the level of noise, hum, and spikes in the power supply, ensuring a clean and reliable power supply.

In conclusion, the CMT-8103 is a large core common mode choke designed for noise filtering on high voltage AC/DC rectifier power supplies. Its high noise attenuation and low resonance make it ideal for applications where differential mode current is low. The CMT-8103 works by using the magnetic properties of a ferrite core to create an electromagnetic field, which helps to reduce the level of noise, hum, and spikes in the power supply, ensuring a clean and reliable power supply.

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