LQH43MN820J03L

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Fixed Inductors

Fixed inductors, also known as fixed chokes or coil inductors, are simply passive voltage/current regulating components with wirewindings on a magnetically conducting frame. This frame can form an air gap, magnetic core, or simply remain as a loop-type transformer, but the main purpose of the fixed inductor is to regulate either voltage or current within a circuit.

LQH43MN820J03L is an example of a fixed inductor. It is a type of air-core inductor manufactured by Murata. This particular inductor provides superior performance in high-frequency conditions. It features a high-temperature resistance up to 125°C and low current consumption of up to 5mA.

The application field of this type of inductor is broad and varied. It is used in power supplies, voltage and current regulators, audio amplifiers, transmitters and receivers, mobile phones, digital data processing equipment, measurement and calibration equipment, etc.

The principle behind this inductor is quite simple yet effective. It works using the principles of magnetic induction. By passing an alternating current through the wire winding, a magnetic field is created. This field in turn induces current to flow in the opposite direction to that of the primary current. This is what is known as inductor current – induced current.

The voltage across the inductor is determined by the primary current, the number of turns in the wire winding, and the reluctance of the magnetic core. The relationship between the inductor voltage is known as the inductor voltage equation or the inductor voltage law.

In general, fixed inductors are designed to provide a high degree of voltage or current regulation over a wide range of application conditions. The choice of core material and winding parameters, as well as the number of turns in the winding are critical for optimal performance.

In conclusion, fixed inductors are commonplace components in most electronic and electrical devices. The LQH43MN820J03L is a type of high-performance air-core inductor manufactured by Murata. It features a high temperature resistance and low current consumption and can be used in a broad range of applications. The inductor works using the principles of magnetic induction and is an essential component in many voltage and current regulators.

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