LK21252R7K-T

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Fixed inductors are passive electronic components used in circuits to store electrical energy in the form of magnetic energy. When an electrical current is applied, a static magnetic field is formed around the inductor, typically resulting in a resistor-like behavior. An inductor\'s value is typically expressed in terms of Henries, and is determined by the material used to construct it, its shape, and its size.

The LK21252R7K-T is a fixed inductor produced by Littelfuse, Inc. designed specifically to meet the needs of the telecom market. It features a high inductance value of 0.65 ßH, a low DCR of 0.16 Ù, and a temperature range of -40° to +80°C. Its RoHS compliant construction and size make it ideal for use in space-constrained designs such as SMD/SMT boards.

The application field of the LK21252R7K-T include telecom circuits, power supply circuits, battery charging circuits, switching circuits, modulation circuits, voltage/current sensing circuits, and high-frequency amplifiers. The wide range of applications is attributed to the device\'s combination of high inductance and low DCR.

The working principle of the LK21252R7K-T can be explained using Faraday\'s Laws of Electromagnetic Induction. This principle is based on the fact that when a changing flux is applied to a coil, a voltage or electromotive force (EMF) is induced at its terminals, so that current will flow in the circuit. In the case of the LK21252R7K-T, a current is passed through the coil resulting in the creation of a static magnetic field. This magnetic field then induces an EMF which causes a current to flow in the circuit.

The LK21252R7K-T is a versatile and reliable component well suited for a variety of applications. Its combination of high inductance and low DCR enables it to be incorporated in highly efficient and cost-effective systems. It is also temperature-resistant, making it an ideal choice for use in extreme conditions. The LK21252R7K-T is an invaluable addition to the telecom market, and is now routinely used in numerous telecom applications.

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