2890-04K

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Fixed Inductors are components that store energy in a magnetic field produced by the electric current in them. The 2890-04K is one such inductor that is manufactured by Coilcraft. It has a molded SMD package which makes it ideal for use in applications that require components with a small foot print.

Application Field

The 2890-04K fixed inductor is used in a wide array of applications. It is mostly used in power supplies, DC-DC converters, filtering, rectification, and switching circuits. The inductor is also used in automotive circuits, base stations, computers, communications, and telecom systems. It can also be used for EMI shielding, RFID systems, clock synchronization circuits, and as input and output components for signal processing applications. This makes the 2890-04K a versatile component that can be used in many different applications.

Working Principle

The 2890-04K fixed inductor works by creating a magnetic field when electric current flows through its windings. This magnetic field stores energy in its inductance, which can then be released back into the circuit when the current stops flowing. This stored energy can allow the inductor to keep providing electrical current even when the source of power is removed. The inductor also helps to regulate and shape the electric current as it passes through the circuit. This ensures that the circuit operates as efficiently and reliably as possible.

The 2890-04K has a nominal inductance of 4.7uH and a tolerance of ±20% at 1.0kHz. It can handle a current of up to 6.4A and a DC resistance of 0.04-1u. The inductor is rated at an operating temperature of -40 to +125 °C and it has a total inductance of 106mH. It also has an enhanced temperature coefficient of 0 ±20ppm/°C.

The operating frequency of the 2890-04K is up to 500kHz and it has an operating current of 0.09A. It has a maximum DC bias of 15%. Its self-resonant frequency is at 1.3-2.3MHz and it can be stored in temperatures ranging from -40 to +125 °C.

Conclusion

The 2890-04K fixed Inductors are some of the most popular components used in many different applications. It has a wide range of operating frequencies, a high current rating, and an enhanced temperature coefficient. It is a versatile component that is able to efficiently and reliably regulate the electric current in circuits. Therefore, it makes a great component for applications requiring a small footprint component with excellent performance.

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