S0603-82NF3S

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Fixed Inductors

A fixed inductor is a type of inductor designed to produce a predetermined amount of inductance. This inductance cannot be changed after manufacture, unlike other types of inductors. The S0603-82NF3S is a surface mount type inductor that is used for a particular purpose. It is best used in high frequency, high power applications.

The S0603-82NF3S is designed with a laminated core of metal oxide film and fired to ceramic substrates. It has a rated current of 2A, and operating temperature range of -40 to +105°C. It has a maximum inductance of 390nH with no DC current, and a minimum inductance of 50nH with 1.6A DC (worst case).

The S0603-82NF3S is primarily used for filter, radio frequency (RF) signal, and low voltage direct current (DC) applications. In filter applications, it is most often used in an LC or L-section filter, with the series inductance allowing the capacitor to provide the tuned cutoff frequency. This combination of components provides an effective low pass filter which is used to reduce the frequency band of an incoming signal.

The inductor also performs a vital role in RF applications; when used in circuits such as mixers, amplifiers, and traps, the inductor serves to keep the frequency of the output signal low, while allowing the input signal to travel the complete frequency spectrum with minimal distortion or attenuation. This is especially important for sensitive applications such as radio receivers.

In DC applications, the inductor is used to create a current path by helping reduce eddy current loops. This helps to improve the efficiency of the circuit and reduce the noise generated. In addition, the capacitor used in combination with an inductor reduces the response time of the circuit, allowing for faster reactivity to sudden changes in the current.

The coil in a S0603-82NF3S inductor is wound around a ferrite core to reduce eddy losses and minimize size. The core is typically made up of multiple strands of alloyed steel wires and is laminated to prevent heating from eddy losses. The ferrite core is important as it ensures that most of the energy applied is stored as magnetic energy, and not lost as heat.

The core also serves the function of providing the necessary magnetic field strength. To help achieve this, the design of the S0603-82NF3S includes a cavity that is layered with metallic material for higher conductivity. This improves the capacitance-to-inductance ratio, providing a higher inductance-to-resistance ratio.

The S0603-82NF3S is designed for high-frequency, high-power applications and is an ideal solution for air-cooled power supplies, DC-DC converters, and radio frequency circuits. With its high inductance-to-resistance ratio, the S0603-82NF3S is reliable, efficient, and cost-effective.

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