CTX01-18056-R

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Inductance:	2.2µH
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Part Status:	Active

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Introduction to Fixed InductorsAn inductor is a component of an electrical circuit that stores electrical energy in the form of a magnetic field and releases it in the form of a current when suitable voltage is applied across it. Inductors are typically available in two types: fixed and adjustable. Fixed inductors are those whose inductance cannot be varied by the user after they are manufactured.CTX01-18056-R Fixed InductorThe CTX01-18056-R is a fixed inductor designed for both commercial and consumer applications. It is a low profile, surface mountable device with an external magnetic core, a package size of 9x6.5x2.6 mm, and a maximum inductance of 8.8 μH. The inductor is rated for currents up to 11 A with low dc resistance of 0.007 Ohm, and supports high frequency switching applications up to 1 MHz.Application FieldThe CTX01-18056-R is suitable for various applications where it can provide an excellent cost to performance ratio. It is used in flyback and forward-mode converters, general-purpose energy storage, switching power supplies, and battery-powered DC motors. The inductor is also used in cell phones, tablets, and other portable devices such as speakers and cameras. Its small size and low profile make it ideal for designs with limited PCB space.Working PrincipleWhen voltage is applied across the inductor, a current is induced in it. This current, in turn, creates a magnetic field that stores energy, due to the inductor’s inductance. The current flowing through the inductor creates a counter-electromotive force, or back EMF, that actively resists the change in magnetic flux. As a result, the current does not increase or decrease abruptly, but ramps up or down gradually, thus limiting the current in the circuit. When the applied voltage is removed, the magnetic field that was created by the current begins to collapse, and this process generates a current in the opposite direction. This generated current keeps the current in the inductor flowing even after the applied voltage is removed.ConclusionThe CTX01-18056-R is a low-profile, fixed inductor designed for both consumer and commercial applications. It is suitable for applications such as flyback and forward-mode converters, general-purpose energy storage and switching power supplies. The inductor works on the principle of Faraday’s law and can store and release energy in the form of a magnetic field. The current flowing through the inductor creates a back EMF that resists changes in magnetic flux, thus limiting the current in the circuit.

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