ER1641-474KP

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Fixed inductors are passive components that store energy in the form of a magnetic field for electrical and electronic circuits. The inductance of the inductor in an alternating current circuit is the ratio of the voltage to the rate of change of current in the circuit. This makes them an important component of filters, tuned circuits, oscillator circuits, and other applications.
ER1641-474KP are one of the most popular fixed inductors, used in various applications. It has an inductance of 4.7 uH, a rated current of 0.2 A and a resistance of 0.03 Ohm. It is featured with high reliability, high saturation absolute current and good self-heating characteristics. It provides inductance settings and low electric resistance that is not affected by resonance.

The ER1641-474KP is used in a wide range of applications, such as high frequency circuits, RF diversity antennas, car navigation systems, high-frequency, and multi-band communication systems, PDA and mobile phones, audio systems, engine control systems and many more.

The working principle of an fixed inductor is based on Faraday\'s law of induction that states that when a conductor is placed in a changing magnetic field, an electrical current is induced in the conductor. The electrical current creates a magnetic field around the conducting wire, and this magnetic field stores potential energy in the form of inductance. The inductance of an inductor is a measure of its ability to store energy and resist changes in the current flowing through the circuit.

The ER1641-474KP is designed to offer the designer a low profile with maximum current and inductance within the components limited space. This can be used to reduce the size of the components and increase the efficiency of the circuit. For example, it can be used to improve the filtering and routing noise, while eliminating the need for external filtering components.

The inductance of the ER1641-474KP is controlled by its internal windings, so the inductance remains constant, even when the device is subjected to changes in temperature and frequency. Its low electric resistance makes it ideal for high frequency and switchmode applications. The inductor can also be used to reduce harmonics and minimize EMI, as it suppresses high frequency noise when used in the filter network.

In addition, the ER1641-474KP has high saturation absolute current, which means it can handle higher current than other inductors of the same size. This makes it ideal for applications such as motor control, DC/DC converters, and Class-D amplifiers.

In conclusion, the ER1641-474KP is a popular fixed inductor, used in a variety of applications. It offers high inductance and resistance settings, as well as high saturation absolute current and good self-heating characteristics. With its ability to reduce harmonics and minimize EMI, the ER1641-474KP is a versatile and reliable inductor for a range of applications.

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