LQH43PB151M26L

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Fixed inductors are electrical components which are widely used in the fields of audio equipment, video equipment, and communication equipment. The LQH43PB151M26L series is one such fixed inductor, and its application field and working principle are worth discussing.

Application Field

The applications of the LQH43PB151M26L series are notably extensive; some noteworthy applications include: power supplies, converters, voltage doubler circuits, filtering applications, and speaker crossover networks. This is by no means a full list, as its general characteristics may make it suitable for a variety of different applications.

General Characteristics and Working Principle

This series of fixed inductors are general-purpose products, and are able to cover a wide range of inductance values, with peak current ratings of up to 1.30A. Furthermore, they have a wide range of temperature coefficients, ranging from -125ppm/°C to +155ppm/°C. It should be noted that the operating temperature range of this series is -40°C to +125°C.

In terms of its operation, a fixed inductor is capable of storing energy due to a magnetically-induced electrical current, and is able to filter the electrical signal, suppressing any type of high-frequency alternating noise. This filtering process is key to the performance of the inductor, and its ability to reject low-frequency noise allows it to be used in various AC applications.

In terms of its design, the core of the fixed inductor consists of two winding layers, which are used to create the necessary magnetic field. The windings are generally constructed with a number of turns of wire, and the inductance of the inductor is determined by the amount of turns. In addition, the type of wire also affects the inductance of the inductor; for instance, using a thicker wire will reduce the total number of turns needed, thus increasing the inductance of the inductor.

The magnetic energy stored in a fixed inductor is proportional to the amount of windings, and the inductance of the inductor is also determined by the core material used. This core material is usually made from ferrite or iron-powder; ferrite has a high permeability and thus increases the amount of magnetic field generated, whereas iron-powder has a low permeability and thus reduces the amount of magnetic field generated. It should be noted that the permeability of the core material has a direct effect on the inductance of the inductor.

Conclusion

The LQH43PB151M26L series are general-purpose fixed inductors, and are suitable for a variety of applications. With its temperature coefficient range, peak current rating, and core material, this series is able to filter incoming alternating signals, and is ideal for use in power supplies, converters, voltage doubler circuits, filtering applications, and speaker crossover networks.

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