18R682C

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Fixed inductors, also known as coils, chokes, or reactors, are electronic components designed to provide a controlled amount of inductance to a circuit, typically under linear current-voltage (IV) conditions. The 18R682C is an example of one such inductor. This inductor is a wire-wound type.

The 18R682C is classified as a thin-film fixed inductor. This inductor applies a wire-wound insulated, carefully-regulated, metal conductor to a stable ceramic substrate. The wire-wound copper-etched inductor provides high inductance and low profile height, which is the quality desired in inductor designs. The 18R682C has a high self-resonant frequency of 22.7MHz, low DC resistance of 7.8Ω, and inductance range of 68µH-2mH, making it suitable for a wide range of applications.

The 18R682C’s main use is for RF filtering and decoupling applications in equipment used in digital and audio electronics, such as in speakers, receivers, and amplifiers. Specifically, this inductor performs the role of filtering less wanted frequencies to get a clear signal. In addition to decoupling and filtering applications, this inductor is also used to store energy in the form of magnetic fields, damp oscillations, and provide impedance matching where necessary.

The 18R682C works on the principle of a coil, or inductor. A coil consists of a conductor, such as a wire, wrapped around a core material to form an inductor. When a current is passed through the conductor, a magnetic field is created around the inductor that stores energy. This stored energy is released when the current is cut off, creating an opposing current to the original current. The opposition of this current is determined by the inductance level of the coil, which is measured in units called henries.

The 18R682C is fixed, meaning its inductance is predetermined and cannot be adjusted. This inductor is manufactured with a ferrite core material, which provides a high saturation point and low hysteresis loss. The common mode inductance of this component is highly tolerant and offers high attenuation at high frequencies. As with all components, the 18R682C is designed with a specific impedance, which must not be exceeded, or it could cause damage to the component.

In conclusion, the 18R682C is a thin-film fixed inductor designed to provide high inductance levels with a low profile. This component is used primarily in RF filtering applications, where its fixed inductance and low DC resistance provide excellent performance. The 18R682C works on the principle of a coil, which creates a magnetic field around it to store energy for release when the current is cut off. The ferrite core material of this inductor provides a high saturation point and low hysteresis loss, making it an ideal component for various RF based applications.

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