ER1840-09KM

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Fixed Inductors

Fixed inductors, often known as chokes or coils, are electrical components that pass current through a closed-loop magnetic circuit. They can store energy in the form of a magnetic field and are essential in many electronics applications. The ER1840-09KM is a common example of a fixed inductor, and this article will explain its application field and working principle.

ER1840-09KM Application Field

The ER1840-09KM is a film-type fixed inductor with a small size that is suitable for a variety of differential or single-ended signal paths. It is often used in power supplies, telecommunication and medical systems, consumer electronics, automotive electronics, and many other electronic applications. It is designed for a maximum operating frequency of 500kHz and a range of inductance values from 0.025 μH to 10 μH. The ER1840-09KM is ideal for applications requiring a wide range of inductance values with high accuracy.

ER1840-09KM Working Principle

Fixed inductors work by passing electric current through a coil of wire or other conducting material. This generates a magnetic field which then induces a voltage in the coil. The voltage induced in the coil is proportional to the amount of magnetic flux generated and to the amount of time that current is applied. The ER1840-09KM’s working principle is fundamentally the same, but it is designed to control the inductance more accurately than a conventional inductor.

The ER1840-09KM is a film type of fixed inductor, which uses a core made of a thin film of high-permeability ferrite material. The core material has a high saturation value, meaning that the inductance value does not decrease as the current increases. The ER1840-09KM also has a tightly wound magnetic circuit to control the inductance value; this enables high precision control over the inductance value compared to conventional fixed inductors.

Conclusion

The ER1840-09KM is a fixed inductor that is designed for a wide range of applications, including those involving power supplies, telecommunication systems, automotive electronics, and medical systems. Its working principle is based on the generation of a magnetic field which induces a voltage in the coil. The core material of the ER1840-09KM is made of high-permeability ferrite material, and the tightly wound magnetic circuit allows for high accuracy control of the inductance value.

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