Fixed Inductors: LQP03TN0N6C02D Application Field and Working Principle

Fixed inductors, also known as fixed-air inductors, are electronic components used mainly as reactive coils or passive filters in signal circuits. They are usually found in amplifiers, converter circuits, DC-to-DC converters, and switched-mode power supplies. The general purpose fixed inductor, LQP03TN0N6C02D, is a specialized type of inductor commonly used in conductive shielding networks. This article examines the application field and working principle of the LQP03TN0N6C02D inductor.

Application Field

The LQP03TN0N6C02D is a surface-mount, fixed type inductor used in a variety of circuits from noise reduction and signal filtering to signal delay applications. It can be applied in DC-DC converters, switching power supplies, and power line filters. Its application field is mainly restricted to linear circuits, where it attenuates undesirable high frequency components, suppresses noise, and allows only a desired frequency bandwidth. Due to its low RDS(ON) value, the LQP03TN0N6C02D is suitable for most low noise circuit applications.

Working Principle

An inductor can be defined as an electrical component that stores energy in an electro-magnetic field. It works by opposing changes in the current flowing through it. This property, otherwise known as inductance, is symbolized by an ‘L’ in equations. A fixed inductor is a type of inductor in which the inductance values are fixed and cannot be changed. The LQP03TN0N6C02D is designed to have a nominal inductance of 3 mH and a maximum current rating of 2.09 A.

In addition to creating an opposition to changes in current, an important function of the fixed inductor is to create a magnetic field that can be used to shield high frequency interference. The LQP03TN0N6C02D is typically used for this purpose in switching power supplies, providing reliable shielding from EMC and noise distortion. Its magnetic core helps to improve the power dissipation characteristics, thus leading to better performance and higher energy efficiency.

Conclusion

The LQP03TN0N6C02D is a surface-mount, fixed-type inductor that can be used in many low-noise circuit applications including DC-DC converters and switching power supplies to protect against high-frequency interference. Its inductance value is fixed, and it can dissipate power effectively and efficiently thanks to its magnetic core. In summary, this inductor provides excellent performance and is a viable solution in many circuit designs.