PM40-2R2K

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Fixed Inductors: PM40-2R2K Application Field and Working Principle

Fixed inductors are fairly commonplace components familiar to most electronics enthusiasts. The PM40-2R2K is one of the most commonly used examples, utilized for many popular electronics needs. This article will explain the application field of PM40-2R2K fixed inductors, and the working principle behind them.

What is the PM40-2R2K?

The PM40-2R2K is a surface-mount fixed inductor designed by Pulse Electronics for use in electronic circuit applications. It is a metal oxide semiconductor (MOS) formed manually by chemical deposition onto a metallic substrate. According to the data sheet, it has an inductance of 2.2 µH with a maximum DC current of 4A.

Application Field of PM40-2R2K Fixed Inductors

Fixed inductors such as the PM40-2R2K are often used in switching regulators, resonant circuits, and other electronic circuits requiring electrical components with high current and frequency capabilities. It is a surface-mount component that can be used within a variety of electrical applications, including but not limited to, dc-dc converters, jet fuel systems, motor drive circuits, power supplies, LED lighting, telecommunications and more.

The PM40-2R2K can also be found in automotive engine control, audio amplifier, aerospace and space equipment, ATE (automatic test equipment) systems, medical equipment, and other industrial-grade applications. It provides an outstanding performance in high frequency switching applications with a very low loss operating frequency range of up to 1MHz.

What Are the Working Principles of a PM40-2R2K?

The PM40-2R2K functions primarily under the laws of electromagnetic induction, which states that a changing magnetic field induces an electric field within a conductor. In this case, the PM40-2R2K is an inductor that creates a secondary magnetic field, which in turn induces a voltage. This voltage is capable of providing different amounts of current depending on the inductance. The higher the inductance, the higher the voltage can be induced at lower levels of current.

The amount of inductance a fixed inductor such as the PM40-2R2K provides depends on its size and shape. Since it is a surface mounted part, it has relatively little space on which to draw. Inductors are typically wound in circles, with more coils providing higher inductance. The materials used to manufacture an inductor also affects the amount of inductance generated. The PM40-2R2K utilizes a MOS material, which has some advantages in terms of its low temperature coefficient of resistance and high current capacity.

The PM40-2R2K also functions based on the principles of Faraday’s Law of Electromagnetic Induction. This law states that a changing magnetic field induces an electromotive force (EMF) within a conductor. In the case of the PM40-2R2K, the changing magnetic field is created through the current running through the inductor. This in turn induces an EMF capable of providing different levels of current depending on the inductance.

Conclusion

The PM40-2R2K is a fixed inductor that is widely used in a variety of applications. It functions primarily according to the principles of electromagnetic induction and Faraday’s Law of Electromagnetic Induction. The amount of inductance generated by the PM40-2R2K depends on its size, shape, and the materials used, and it can be utilized in a wide range of commercial and industrial applications.

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