ER1840-25JR

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Fixed inductors, also known as coil or choke, are used in many electronic circuits for filtering, tuning, decoupling, energy storage and other purposes. The ER1840-25JR is a special fixed inductor product that has become popular in the electronics industry. This article will discuss the application field and working principle of ER1840-25JR inductors.

Application Field

ER1840-25JR is a high-current, high-efficiency, low-resistance inductor with a wide range of applications. It is mainly used in various electrical and electronic circuits, including low-frequency and high-frequency switch power supply circuits, switching converters for green energy, communication products, industrial control products, automotive products and other consumer products. In addition, this inductor is also used in other applications such as inverters, motor drives, electric vehicles, and various capacitor-input power conversion systems.

With its strong ability of current operation, the ER1840-25JR inductor could operate in high-temperature environments with high-reliability and provides better electromagnetic compatibility. In addition, it also has a wide range of characteristics, including high rated current, low DCR, good stability and wide temperature range. It is an ideal solution for improving system efficiency, reducing product size and reducing cost.

Working Principle

ER1840-25JR inductors utilize the principle of electromagnetic induction to generate a magnetic field in a core. The working principle of this type of inductor can be represented by an equation, which states that the inductance (L) is directly proportional to the number of turns (N) of the inductor coil and inversely proportional to the geometry of the core. In addition, the inductance of the inductor is affected by external factors such as the number of nearby relative conductor loops, the shape of the air gap in the core, etc.

The value of the inductance is determined by the inductor’s core material and the number of turns of the coil. The core material used in ER1840-25JR is a ferrite core which can effectively reduce its core loss and provide a high inductance with a small volume. The high rated current of the inductor enables it to operate in high-temperature environments efficiently and with high-reliability.

The ER1840-25JR inductor also has a strong shielding effect, meaning that it can effectively reduce the electromagnetic interference caused by nearby electronic components. This ensures that the system has a low Total Harmonic Distortion (THD) and good electromagnetic compatibility.

In addition, the ER1840-25JR inductor has a wide operating temperature range from -40°C to 125°C, which can significantly reduce temperature-induced design compromises, enabling designers to use the inductor in challenging environments.

To conclude, ER1840-25JR inductors are widely used in the electronics industry due to its high current operation, high efficiency, and low resistance, as well as its shielding ability and wide operating temperature range. The working principle of this type of inductor is represented by the magnetic induction principle and the core material plays a significant role in determining the value of its inductance.

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