ALFT-04-6

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Common Mode Chokes are utilized to provide electrical insulation and also to attenuate Common Mode signals. ALFT-04-6, is an advanced Common Mode Chokes, which offers excellent performance in terms of electromagnetic interference (EMI) suppression.

This type of choke is designed to suppress the common mode currents flowing on the conductors of advanced communication links. The ALFT-04-6 has a wide frequency range of 2kHz to 300MHz, with attenuation characteristics from 10kHz to 1MHz. It features an adjustable coil, which allows for fine tuning of the attenuation characteristics to meet the specific needs of the application.

It is made using two ferrite rods with a flat winding of thin wire, very useful for tight space applications. The choke can be mounted directly to a printed circuit board, or it can be installed on a Din-rail or in a terminal strip. This makes it highly suitable for industrial automation applications.

Field testing of this choke has revealed that it is able to meet the requirements of many applications. One of these applications is in the protection of cables from EMI produced by other sources. The common mode advantage of this choke enables it to perform efficiently in this regard. Its ability to attenuate the EMI over a very wide frequency range makes it suitable for blocking the transmission of EMI between equipment located inside of enclosures.

The working principle of this choke is based on the concept of inductive reactance. This is the amount of resistance that is generated by an inductor to signals of varying frequencies. The ALFT-04-6 utilizes this concept to block the common-mode signals that travel along the conductors.

The choke operates by creating a magnetic field around the conductors, which opposes the propagation of the common-mode signals. At certain frequencies, the choke will effectively block the signals. The attenuation characteristics of the ALFT-04-6 can be adjusted, based on the application, in order to provide the optimal level of protection.

In addition to providing excellent EMI protection, the ALFT-04-6 is also able to reduce the level of lightning strikes. This is due to the added protection that the choke offers in the event of a lightning strike. This makes it particularly useful in industrial applications, where lightning strikes are more likely to occur.

The ALFT-04-6 is an advanced type of Common Mode Choke that offers excellent performance in terms of EMI suppression. Its broad frequency range and adjustable attenuation characteristics make it suitable for a variety of applications. The working principle of this choke utilizes the concept of inductive reactance to oppose the propagation of the common-mode signals. This makes it highly effective in preventing the transmission of EMI between devices located within an enclosure. Additionally, its ability to reduce the level of lightning strikes makes it a very useful tool in industrial applications.

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