LQW31HN33NK03L

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Fixed Inductors are electrical components often used in electronic circuits and assemblies. They are commonly used to filter or smooth out voltage spikes or ripple in a power supply. In addition, Fixed Inductors can also be used in the construction of electromagnets, as well as for radio frequency applications. The most common type of fixed inductor is the LQW31HN33NK03L.

The LQW31HN33NK03L is a double-shielded inductor, meaning that it is made up of two layers of conductive material, separated by a dielectric material. The two layers of conductive material act as a shield against outside electromagnetic interference, making it particularly suitable for shielding against radio frequency (RF) interference. As well as its high-frequency shielding capabilities, this type of inductor also offers high current capacity.

In terms of its applications, the LQW31HN33NK03L is typically used in power supplies and non-critical communication circuits. It is also commonly used as a step-down inductor, in electric motors, and as a low pass filter in audio amplifiers. Due to its high current capacity, it is also sometimes used in switched mode power supplies (SMPS) as a storage inductor.

Regarding its working principle, the basic function of an inductor is to provide impedance to alternating current (AC). This happens when electric current passes through the coil. As the electric current flows through, it will create a magnetic field around the coil. This magnetic field induces an opposite voltage in the coil due to the Lenz’s law. This can then oppose to the original voltage, and in turn, reduce the current flow.

In addition to its basic function of providing impedance to alternating current, the LQW31HN33NK03L inductor can also be used as a radio frequency filter for switching power supplies. In this application, the inductor is used to decrease the ripple of the output voltage level. The inductor is connected between the rectifier input and the switching transistor, allowing the ripple current from the power supply to flow through it. This reduces the amount of ripple current flowing through the switching transistor, helping to reduce EMI.

As can be seen, the LQW31HN33NK03L is a versatile fixed inductor that can be used in a variety of applications. Its shielding capabilities make it ideal for radio frequency applications, while its current capacity makes it a useful component in power supplies. In addition, its ability to provide impedance to AC and act as an RF filter for switching power supplies further add to its usefulness.

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