LQW15CNR22K1ZD Inductors, Coils, Chokes

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Fixed Inductors

A fixed inductor, also known as a non-variable inductor, is an electrical component that stores energy in the form of a magnetic field. It is most commonly used to form part of an oscillating circuit, with the inductor typically connected in series with a capacitor. This type of arrangement enables a self-sustaining oscillating circuit to be produced, meaning that energy will continue to flow uninterrupted from one to the other in an alternating fashion.

The LQW15CNR22K1ZD is an example of a fixed inductor. It is a small, 0.15 μH miniature wire wound surface mount inductor. It is constructed from planar coils of copper wire wound onto a ferrite core. This type of device has an inductance value that is quite low, meaning that it is suitable for use in high frequency electrical circuits.

The application field for this particular device is wide, ranging from EMI suppression, power line EMI filters, coupling, and decoupling, to RF signal filtering and improving power line regulation. Given its small size and low inductance value, it is also often used in switch mode power supply circuits, or in DC-DC converters. It is also commonly seen in the circuitry of computers, telecommunication devices, audio amps, and power supplies.

The inductor’s working principle is relatively simple. When an electrical current flows through it, it creates a magnetic field and stores some of the energy in the form of a magnetic field. When the current stops or can no longer sustain it, the energy stored will be released back into the circuit, allowing it to continue to oscillate. This release of energy is what enables the inductor to continue to oscillate, allowing a circuit to remain in a stable state.

The oscillating nature of an inductor circuit is dependent on a number of factors, such as the inductance value, the conductivity of the core material, as well as the wiring of the inductor. As such, fixed inductors like the LQW15CNR22K1ZF are extremely useful for designing stable, high-frequency electrical circuits.

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