78F820J-RC

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Fixed Inductors

Fixed inductors are passive electronic components with two conducting terminals and one or more windings (wrapped around a core). These inductors, also known as coils or chokes, usually store energy in a magnetic field and can be used to provide resistance against the flow of electricity. The 78F820J-RC is a radial leaded fixed resistor used for various applications. It has high inductance and low resistance, making it ideal for use in low-frequency circuits.

Application Field

The 78F820J-RC Fixed Inductor is designed for use in a variety of applications, such as signal line chokes, line filters, attenuators, and low-frequency rectifiers. In signal line chokes, the inductor can be used to suppress a common mode voltage ripple, while in line filters, it can be used to reduce any interference caused by electromagnetic components. Additionally, the inductor can also be used in combination with capacitors to construct filters for signal conditioning and noise suppression.

Working Principle

The primary way in which inductors work is by storing magnetic energy while allowing electrical energy to pass through them. An inductor\'s magnetic field is proportional to the current passing through it, and this relationship is known as inductance. The inductor can be conceptualized in terms of a coil of wire that produces a magnetic field when carrying a current. This field acts like a charged capacitor, creating an opposing voltage and current flow. This opposes the flow of the original current, producing an inductive property.

The magnitude and direction of an inductor\'s inductance depend on the number of windings, the size, and the geometry of its core. For the 78F820J-RC Fixed Inductor, its inductance value can reach up to 820nH, while its rated current is limited to 1A. The inductor also has an operating temperature range of -25°C – 125°C, making it suitable for a variety of environmental conditions.

Incoming electrical energy causes a current to flow through the inductor\'s windings and a magnetic field (represented by a vector) is generated. When the current is interrupted or reversed, a current in the opposite direction (with the same magnitude) is produced, due to the magnetic field decaying. It is this phenomenon that gives inductors their ability to provide resistance against the flow of electricity.

Conclusion

The 78F820J-RC Fixed Inductor is designed with a high inductance and low resistance, making it ideal for use in low-frequency circuits. It can be used in a variety of applications, such as signal line chokes, line filters, attenuators, and low-frequency rectifiers. It is capable of storing energy in a magnetic field, which it uses to provide resistance against the flow of electricity. This makes it an ideal choice for a variety of applications, and because of its temperature range, it can also be used in a variety of environments.

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