4554-821K

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Fixed inductors, such as the 4553-821K, are a class of components used to store electrical signal energy for a variety of applications. They are constructed from coils of metal or foil wound around a core, usually made of ferrite or mu-metal. The core helps to contain the magnetic field created by the inductor, and the coils store the signal energy.

The 4553-821K is a high-inductance, axial-leaded ferrite core inductor capable of handling high peak currents. The core is surrounded by an octagonal ferrite disk, which helps shape the inductor coil and prevents field saturation. It has a low DC resistance and very low frequency ripple. This type of inductor is well-suited for applications where a large amount of current needs to be transmitted in a short amount of time, such as power supplies and motor controls. It is also commonly used in switching power supplies, DC-DC converters, and radio-frequency circuits.

The 4553-821K is rated for operating frequencies up to 500kHz and can handle currents up to 10 Amps. It has a low inductance of 0.13mH and a capacitance of 500pF. It has a high peak current rating of 50A. The device is available in a variety of packages, including thru-hole and surface-mount varieties. This makes it suitable for a range of applications, from simple power supplies to high-frequency, high-current circuits.

The working principle of the 4553-821K is based on Faraday’s Law of Induction. When a coil is subjected to a changing magnetic field, a voltage is induced in it. This voltage is known as the induced voltage or electromotive force (EMF), and it is proportional to the rate of change of the magnetic flux through the coil. This voltage can then be used to power a variety of electronic devices.

The 4553-821K is designed to regulate the amount of current that passes through it. The current is regulated by varying the size of the magnetic field that surrounds the coil. The larger the magnetic field, the more current is drawn into the inductor. Conversely, the smaller the magnetic field, the less current is drawn into the inductor. This makes the 4553-821K useful for controlling the amount of current that is passed through a device.

In addition to regulating the current, the 4553-821K also acts as an energy storage device. This means that the inductor stores the signal energy that it is subjected to, and then releases it when the current through it drops. This allows the inductor to act as an energy buffer, allowing it to store and release energy in a controlled manner. This makes it ideal for use in power supplies and other applications where a steady stream of current is required.

The 4553-821K is a versatile fixed inductor that has a wide range of applications. By regulating the current, storing energy, and preventing field saturation, it is a popular choice for applications such as power supplies, motor controls, switching power supplies, DC-DC converters, and radio-frequency circuits. Its high peak current rating and octagonal ferrite construction make it a reliable and efficient solution for many applications.

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