ER1025-79JM

Fixed Inductors: ER1025-79JM Application Field and Working Principle

Fixed inductors, also known as choke coils, are electrical components designed to store energy in the form of a magnetic field when electrical current is passed through them. ER1025-79JM is a type of fixed inductor manufactured ad marketed by Yageo. This article gets into the details of application fields and working principles of the component.

Application Field

ER1025-79JM fixed inductors are designed to provide a high-frequency signal filtering effect, and can be used in various circuits. Some of the main application fields for ER1025-79JM fixed inductors are as follows:

• Power Supplies: ER1025-79JM fixed inductors are used in power supplies and switching power supply circuits to filter out high-frequency noise and improve the quality of the power supply. It is also used in switching regulators to stabilize the output voltage.
• Communications: ER1025-79JM fixed inductors are used in communication circuits to filter out high-frequency noise. They are often used in high-frequency devices, such as mobile phones, where they act as a partner to a capacitor to form a DC cutoff filter.
• Motor Driver Circuits: ER1025-79JM fixed inductors are often used in motor driver circuits to filter out noise caused by switching pulses. This helps reduce power consumption and minimize the chance of failure in motor driver circuits.

Working Principle

ER1025-79JM fixed inductors are based on the principle of electromagnetic induction. When an electrical current is passed through the component, a magnetic field is created which stores energy. As the current through the inductor changes, the magnetic field rises and collapses, inducing an electric current in the opposite direction. This current is known as an induced current. This induced current opposes any changes in the current flowing through the inductor.

In other words, the resistance to changes in current passing through the inductor is proportional to the amount of current. This phenomenon is known as "self-inductance". This self-inductance helps control the current passing through the inductor, which is why it is used in a variety of applications. In addition, the self-inductance property also creates a distinctive sound when current passes through the component, which is why it is often used in audio circuits.

Conclusion

ER1025-79JM fixed inductors are widely used in various types of circuits for their ability to filter high-frequency noise. They are also useful for stabilizing the output voltage of power supplies and controlling the current flowing through motor driver circuits. The working principle of the component is based on the phenomenon of self-inductance, which is the property of the component that allows it to resist changes in current.