78F1R5K

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Fixed Inductors

A fixed inductor is an electronic inductor that is designed to hold a specific amount of inductance. It is mainly used to create and control electromagnetic oscillations, store information, and process signals in electronic circuits. The 78F1R5K series is a popular type of fixed inductor. This article will provide an overview of its usage and working principles.

Application Field

The 78F1R5K series of fixed inductors are widely used in many applications, such as power supplies, switching power supplies, converters, motor controllers, resonant circuits, and more. In addition, fixed inductors of this series are also used in various types of consumer and industrial products including AC/DC power supplies, battery chargers, embedded systems, LED lighting, audio systems, instrumentation, medical equipment, and more.

Working Principle

A fixed inductor works by storing electrical energy in a magnetic field. When current passes through the coil of the inductor, a magnetic field is created around it. The magnetic field increases in strength as more current is passed through the coil, and this field is what stores the electrical energy. When the current is stopped, the magnetic field collapses, and that energy is then released into the circuit.

To understand how a fixed inductor works, it is important to understand how inductance (measured in Henry) is affected. The amount of inductance is determined by the number of turns in the coil and the cross-sectional area the coil occupies, as well as the permeability of the core material. A higher number of turns and a smaller inner core diameter will produce a greater inductance. This is why the 78F1R5K series of fixed inductors are known for their very high inductance values.

In addition to the number of turns and core size, there is also an important consideration when dealing with fixed inductors – the self-resonance frequency. Self-resonance frequency is the frequency at which the inductor will resonate when no outside current or voltage is applied. It is important to note that the self-resonance frequency of a fixed inductor can vary with temperature, so if the inductor is going to be used in an environment with fluctuating temperatures, it is important to make sure the self-resonance frequency is adequate.

In summary, the 78F1R5K series of fixed inductors are high inductance, current self-resonant units which are used in a range of applications. They are used to store electrical energy and control electromagnetic oscillations and signals in a variety of consumer and industrial products. Understanding the principles of inductance and how to determine self-resonance frequency are vital for using these components correctly.

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