LQH43NN120J03L

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Fixed Inductors

Fixed inductors, also known as chokes, are passive components with the capability of limiting the amount of current flowing through a circuit by providing inductive reactance. A common type of fixed inductor is the LQH43NN120J03L.

Application Field

The LQH43NN120J03L Inductor is used for a variety of applications from telecommunications to consumer electronics, and is suitable for various switching power supplies. Additionally, it is used in linear power supplies, across complementary power amplifiers, or across the supply and ground of switching amplifiers. One of the reasons this particular inductor is preferred is because it has a high saturation current rating of 16A.

Working Principle

Inductors work by converting electrical energy into magnetic energy. When current flows through the windings of a fixed inductor, a magnetic field is created, and this magnetic field opposes the flow of electrons. This opposition is known as inductive reactance. When an alternating current passes through the inductor, the magnetic field created by it collapses and re-creates each time the current passes through zero. This induces a voltage into the windings, which opposes the initial current. This is known as back-emf, and it limits the amount of current that can flow through the inductor.

The LQH43NN120J03L fixed inductor is designed to have high inductance with minimal power dissipation and high saturation current. It has a core made of ferrite material with a cylindrical shape, and a flux concentrator built into its construction. The electrical properties are achieved with symmetrical twin-spiral windings of magnet wire wound on the core.

The high saturation current makes the LQH43NN120J03L suitable for use in applications where larger currents are encountered. It is also useful in power supply designs that require a low DC resistance. The inductor also has low electrical noise, due to its construction, and is suitable for use in high frequency applications where the reduction of EMI and RFI can be beneficial.

The LQH43NN120J03L fixed inductor is a dependable and economical choice when you require a high efficiency fixed inductor in your applications. This versatile component can handle high transients with minimal power dissipation and can provide reliable operation for many years.

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