LQM21FN4R7M70L

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Fixed Inductors are commonly used electrical components in printed circuit boards and other electronic devices. As part of the electrical engineering (EE) design and development process, inductors are essential to design circuits on printed circuit boards. Inductors are one of the most basic EE components, and hence have an array of sizes and specifications available in the market. The LQM21FN4R7M70L is a fixed-type inductor manufactured by Murata. It is essential to learn the working principle and field of applications of this specific inductor.

The LQM21FN4R7M70L is a miniature inductor with a 4.7 μH inductance. This component is suitable for high-density mounting and is often used in compact electrical circuits. This particular inductor has a ferrite core made of ceramic material, which provides superior power saving and stability in comparison to other electrical components. Additionally, the LQM21FN4R7M70L provides excellent high-frequency characteristics as it has a low equivalent circuit resistance, with DC resistance as low as 0.043Ω. It also has low power dissipation, with power output as low as 0.213mW.

The LQM21FN4R7M70L belongs to the broad category of fixed inductors. A fixed inductor is a type of electrical component that is able to resist changes in current or voltage. It essentially stores energy in the form of an electric field. The LQM21FN4R7M70L is able to do this by utilizing an electromagnet. As electric current flows through the wire wrapped around the electromagnet, an electric field is formed, and this electric field is used to store and produce energy. Moreover, electric current is also restricted from flowing in certain directions because of the magnetic field that is formed.

The field of applications of the LQM21FN4R7M70L is quite broad. This particular type of inductor is often used in a variety of electrical components. Owing to its excellent power efficiency, these inductors can be used in a wide range of applications, including car audio systems, amplifiers, switching power supply, DC-DC converters, and automotive electronic systems. In addition to this, this component is also suitable for use in circuit boards that require high-frequency components with low power dissipation.

In sum, the LQM21FN4R7M70L is a miniature fixed inductor that can provide superior power efficiency and stability in comparison to other electrical components. With a ferrite core made of ceramic, it provides excellent high-frequency characteristics, and is able to resist changes in current or voltage. Owing to its power efficiency and size, this inductor has a wide range of applications, including car audio systems, amplifiers, switching power supply, and DC-DC converters.

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