LQW18AN3N9D10D

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Fixed inductors refer to components that store energy in a magnetic field and can be broadly classified as either inductors or transformers. In the case of LQW18AN3N9D10D, this is a type of self-shielded inductor with high impedance and low DC resistance. Therefore, this component is useful when there is a need for a high-impedance, high-frequency inductor.

The most common application field of this component is in power supplies for various electronic devices. Specifically, these components are often used in the final stage of power supplies and as output filter inductors in SMPS designs. In addition, they are also used in the input stage of high-frequency switching circuits, radio transmitters, and antenna systems.

In terms of working principle, LQW18AN3N9D10D consists of a core made of ferrite, a multi-layer winding, and an encapsulated copper shield. The ferrite core amplifies the effectiveness of the winding, while the shield provides effective stopping of the magnetic field from the winding. This allows for a high impedance, very low DC resistance, and high frequency operation.When current passes through the winding, the electromagnetic field induced by the winding, attracts the core. This leads to a high conduction current on the winding. At the same time, the shield induces a magnetic field on the external space. When the magnetic field does not overcome the core’s coercivity, conduction is decreased, leading to a low inductance. Thus, this component is able to maintain a high impedance, low DC resistance, and high frequency characteristics regardless of the load.

Overall, the LQW18AN3N9D10D is a self-shielded, high-impedance, low-resistance, high-frequency inductor. It is used in power supplies for a variety of electronics devices, SMPS designs, radio transmitters, and antenna systems. Its working principle is based on the core amplifying the effectiveness of the winding, the electromagnetic field attracted by the core, and the external shield inducing a magnetic field, which prevents the magnetic field from the winding from exiting the inductor. Furthermore, this allows for a high impedance, low DC resistance, and high frequency operation.

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