S0402-3N3F3S

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Fixed inductors, or inductors, are electronic components used in electrical circuits, either in combination with resistors, capacitors, or other components, or by themselves. The purpose of an inductor is to store energy in a magnetic field within the component, and release that energy gradually over a period of time. Fixed inductors are components which are specifically designed to have a fixed inductance value, which is generally measured in henries.

S0402-3N3F3S is a type of fixed inductor which is manufactured by Yageo Corporation. The size of this inductor is 0402, making it one of the smallest models of fixed inductors available on the market. The numerical part of the name stands for the inductance value. The first two digits, 3N3, indicate that the inductance value of the product is 3.3 nanohms, and the third digit F3 indicates the tolerance range, which is typically between 10%-30%. The last part of the name, S, stands for surface mount, meaning that it is intended to be used on a circuit board.

The application field of the S0402-3N3F3S fixed inductor is vast and varied. This component is widely used in power supply and switching power supply circuit designs. This type of inductor is also commonly used in the design of filter and communication circuits. The S0402-3N3F3S fixed inductor is often used in circuits where high-frequency oscillations are required. Other common applications are signal processing, low-noise audio amplifiers, digital and radio-frequency circuits, and in applications demanding pulse transformers.

The working principle of the S0402-3N3F3S fixed inductor relies on the phenomenon of induced electromotive force, or self-induced EMF. In simple terms, this phenomenon occurs when a conductor is exposed to a pulsed or alternating current. When this happens, the conductor is induced with a voltage which opposes the flow of the current. This is known as the back-emf, and this is exactly what happens in a fixed inductor.

When current flows through the S0402-3N3F3S inductor, it generates a magnetic field. This magnetic field then affects the flow of the current, and the back-emf is generated. This opposes the applied current, and the strength of the back-emf depends on the inductance value of the component and the frequency of the current. The more current that flows through the inductor, the higher the back-emf is generated, and this slows down the current flow, thus creating a limiting effect.

The application of the S0402-3N3F3S fixed inductor is made possible thanks to its small form factor and highly reliable, stable performance over wide operating temperature range. The inductor offers stable inductance values and a low resistance which saves power and effectively limits the current flow. In high-frequency operations, the S0402-3N3F3S fixed inductor provides excellent control over the oscillations, and it can be used in a range of projects, both digital and analog, achieving outstanding performance time after time.

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