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Fixed Inductors

Fixed Inductors are used in the electronic industry for a variety of different applications. CF453215-R39K is a type of fixed inductor that is commonly used for power applications. It has a shielded rating of 39μH and can handle up to 25A. This type of inductor is used in converters, motor drivers, high-efficiency DC-DC converters and other applications.

Application Field

CF453215-R39K is mainly used in low- to high-voltage applications where power efficiency is essential. It is commonly used in AC-DC, DC-DC, and other DC converters, along with inductive heater drivers. This type of inductor is also used in motor drivers and power supplies, where it acts as an efficient way of storing energy.

It is also used in high-current applications such as automotive, audio, and power electronic equipment. This type of inductor is particularly useful in power applications, due to its high current rating and ability to handle high frequencies. It can also be used in switching power supplies, where it is extremely efficient.

Working Principle

A fixed inductor operates on the principle of electromagnetic induction. When current flows through an inductor, it creates a magnetic field around the component. This magnetic field then induces a voltage that opposes the flow of current. This voltage is referred to as back EMF.

The back EMF of an inductor is proportional to the rate of change of current flowing through it. Therefore, when there is a sudden change in the current flowing through the inductor (such as when switching power supplies are turned on or off), the back EMF is greater than the applied voltage and prevents the current from increasing too quickly. This helps protect the components attached to the inductor from damage due to overcurrent.

The main advantage of a fixed inductor over other types of inductors, such as variable inductors, is its ability to store kinetic energy in the form of back EMF. This allows the inductor to act as a buffer against sudden increases or decreases in current, which helps to prevent damage to the attached components.

Conclusion

CF453215-R39K is a type of fixed inductor that is commonly used in power applications, as it is capable of handling high current levels and frequencies. It is also extremely efficient, making it ideal for use in converters and motor drivers. It operates using the principle of electromagnetic induction, where it stores kinetic energy in the form of back EMF to protect the components attached to it from damage.

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