4379R-391HS

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Fixed Inductors

Fixed inductors are components used in high-frequency electronic circuits, such as in radio and audio applications. The 4379R-391HS fixed inductor is a surface-mount RF chip inductor designed for use in applications like tuned circuits, RF filter tuning, and impedance matching.

The 4379R-391HS fixed inductor comprises ferrite material, allowing for consistent and unbeatable quality. The chip is built with good thermal reliability, and can handle high-temperature operation with small deviation in values of inductance. It has a quite high relative value of inductance, minimum thereabouts of 0.76μH, up to 3.3μH. Its self-resonant frequency (SRF) is up to 13.7GHz, while its Q value is as much as 11.2.

Application Field

Applications of the 4379R-391HS fixed inductor are many, and it can be used in GPS, cellular and PCS systems for filtering, impedance matching, and tuned circuits. It also finds use in small radios, hearing aid devices, sirens, and medical and wireless device applications. The inductor is also suitable for the circuit designs of I/O ports, filters, signal transmission, and interference suppression in many electronic appliances, computers, and peripheral devices. 4379R-391HS Fixed inductor can be used in many areas, such as linear TV, set-top-box, DVD, amplifier and other electronic engineering and technical applications.

Working Principle

Fixed inductors work by storing energy in their magnetic cores, by the flow of current. This induces a magnetic field which generates a voltage. The direction of the current flow dictates the direction of the magnetic field, and therefore the polarity of the generated voltage.

When a direct current is applied, a strong magnetic field is created and a magnetic flux is generated inside the inductor\'s core. A portion of this flux is oriented in one commanded direction while the rest of the flux crosses the inductor\'s coil. This flux induces a voltage in the turns of the inductor\'s coil. The amount of voltage depends on a number of factors, including the strength of the flux, the amount of inductor\'s coil turns, and the frequency of the current. The voltage drop across the inductor depends on its inductance value, the amount of current, and time.

In some applications, an alternating current is used instead of a direct current. This also creates a magnetic field with both north and south poles, and this changing magnetic field induces an alternating voltage in the inductor\'s coil. This alternating voltage is in phase with the alternating current, as well as inversely proportional to the frequency of the current.

The 4379R-391HS fixed inductor is a highly reliable chip inductor made with ferrite material. Its SRF and Q value are relatively high, and it can handle wide temperature variations with small deviation in inductance values. The chip inductor is designed for use in applications like tuned circuits, RF filter tuning, impedance matching, and many other electronic engineering and technical applications.

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