DLW21SZ670HQ2L Filters

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Common Mode Chokes are often used in power system to suppress noise generated from the line, and the DLW21SZ670HQ2L which belongs to common mode chokes are no exception.

This product is suitable for all kinds of requirements in inductor solutions such as appliances, IT & telecom, automotive, industrial, LED, computers, consumer electronics, and many more. It provides the maximum inductance of 670nH, the current rating of 1A, and the saturation current of 1.4A.

The main function of DLW21SZ670HQ2L is to reduce the internal electromagnetic interference within an electric system. This is accomplished by preventing common mode noise emission and preventing current from flowing through the capacitive load. It also reduces noise radiation within a system by limiting current or voltage peaks to a specific level.

The core material of this product is ferrite, and the package type is cut-tape and reel. With high temperature resistance and good mechanical and electrical properties, it can be widely used in a variety of high-frequency circuits such as DC-DC converters.

DLW21SZ670HQ2L working principle is to convert the electric energy from the ac mains into to a magnetic field in the core of the inductor. The windings of the inductor act as a primary side of a transformer. The current flowing in the inductor core creates a magnetic field that induces a voltage in the windings. This voltage drop in the windings provides the required isolation from the high frequency interference present in the power line.

This inductor is also used as a common mode filter. Its function is to reduce the conducted common mode noise and the differential mode noise generated by the common mode current. The current flows from the power line through the inductor and through the winding of the coil. As the amount of current increases, so does the voltage drop across the inductor.

Overall, the DLW21SZ670HQ2L is one of the most commonly used common mode chokes which suppresses the noise generated from the power line. It utilizes a high-density ferrite core to provide the necessary magnetic field to filter the interference and inductive current. Moreover, the windings of the inductor act as a primary side of a transformer to provide the necessary isolation from the high frequency interference present in the power line.

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