4922-30H

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Fixed Inductors

Fixed inductors are electronic components that are used in AC, DC, and radio frequency (RF) circuits to store electrical energy in magnetic fields. As opposed to variable inductors, their inductance does not depend on the amount of current flowing through them. This makes them ideal for applications requiring a fixed inductance, such as in transformers and in filters.

The type of inductor known as a 4922-30H, is one such component that has a wide range of applications. It is a low profile, high-power inductor, making it suitable for a variety of applications. In this article, we will discuss the various fields in which the 4922-30H is used, as well as its working principle.

4922-30H Application Fields

The 4922-30H is mainly used in telecommunications, industrial, and automotive applications. It is a high-power inductor designed to handle high currents and has higher temperature coefficients than other inductors, such as the 4920-30L.

In telecommunications, it is commonly used in the filtering stages of satellite receivers, base station amplifiers, cellphones, and mobile radios. It is also used in the electromagnetic interference (EMI) filtering stages of various audio/visual and home entertainment products. The 4922-30H also finds application in the DC/DC power supplies found in laptops and other portable devices.

For industrial applications, the 4922-30H is mainly used in power-factor correction and motor-drive circuits. It is also deployed in high-power LED drivers, DC/DC converters, and Uninterruptible Power Supplies (UPS). In automotive applications, it is used in the DC/DC converters of electric vehicles, fuel-injection systems, and automotive infotainment systems.

Working Principle

As with all inductors, the 4922-30H works by storing energy in a magnetic field generated by the currents flowing through it. The current produces a magnetic field, and this field creates a back electromotive force (EMF) that opposes the current and its associated voltage drop. This EMF is also known as induced voltage, and it is the property of an inductor that gives it the ability to store energy.

The 4922-30H’s resistance property is dependent on various factors, such as the number of turns, area, and cross-sectional area of the core material. In any given application, the inductance of an inductor is determined by these factors and is measured in henries.

In addition to the induced voltage and the resistance property, the 4922-30H also has some self-resonant frequency. This frequency, usually denoted by the symbol fR, is the frequency at which the resonant peak of the inductor occurs, and it is typically in the kHz range.

The 4922-30H has a low profile design and features high saturation current and low DC resistance. This makes it an ideal choice for applications that require both high power and efficient energy storage.

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