Fixed Inductors

Fixed inductors are electronic components consisting of a coil of insulated wire, usually wound around a ferromagnetic core. They generate a magnetic field when carrying current, and produce an opposing voltage, known as inductance, which opposes the change in current. This effect is used in electrical circuits to delay or limit the flow of current.

4554-270K application field and working principle

The 4554-270K fixed inductor, offered by Murata Manufacturing Co., Ltd., is a type of surface mount fixed inductor with a ferrite core. The 4554-270K is suitable for a variety of applications, including DC-DC converters, voltage-controlled oscillators, electromechanical filters, and radio frequency amplifiers. It can also be used in switching power supplies and audio systems.

The 4554-270K is designed to provide inductance values ranging from 0.2 to 27 uH. It features a wide operating temperature range from -40℃ to +85℃, and can withstand peak current up to 3.2A. It has a low DC resistance of 0.08 ohms and a high maximum Q factor of 21. The small footprint allows for use in high-density device applications.

At its core, the 4554-270K functions on the principle of electromagnetic induction. When AC current is applied to the inductor, a magnetic field is generated. The magnitude of the induced voltage depends on the rate of change of the current, and the value of the inductor. The voltage generated by the 4554-270K also depends on the size and shape of the winding, number of turns, and the ferrite core material. This varying voltage induces other electric and magnetic fields around the inductor, which can affect the performance of other components within the circuit.

In addition to its electromagnetic induction characteristics, the 4554-270K is also designed with noise suppression and isolation features. Integrated noise suppression circuits are designed to reduce electro-magnetic interference between components, while isolation features provide protection from electric surges and other potential hazards.

Overall, the 4554-270K is a compact, low-cost, and reliable inductor ideal for use in applications with space, power, and cost limitations. Its wide temperature range and noise suppression/isolation features make it a great choice for integrating into digital circuits, and its small size allows it to be used in high-density printed circuit boards.