LAL04KB1R2M

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Fixed inductors, also referred as chokes, are inductive components that have a fixed inductance and are used to filter incoming and outgoing signals, or to provide a controlled impedance in circuits such as logic gates. The LAL04KB1R2M is a common and reliable fixed inductor offering low cost, robust performance, and high reliability.

The inductor has a maximum DC current rating of 4.25A, a maximum AC current of 2.23A and a maximum DC resistance of 0.13 Ω. Its inductance ranges from 4.7nH to 1.2mH depending on the version. It is designed to operate over a temperature range of -55 to +125°C and offers a long-term stability with low frequency thermal convection cooling.

The LAL04KB1R2M offers a significant advantage for applications that require a board-level primary or secondary filter inductor. Its low cost, small footprint, and high performance make it ideal for use in a wide range of applications. These include power supplies, power conversion systems, AC/DC and DC/DC converters, AC/AC converters, signal and RF filters, audio filters, and other power management devices. It is capable of providing clean and stable power to high-density and high-power applications such as automotive, industrial, and medical.

The working principle of the LAL04KB1R2M is based on the fact that an alternating current flowing through an inductor will generate a magnetic field. This magnetic field will induce a voltage across the inductor, which in turn will limit the rate of change of the current. This generates a frequency-dependent impedance which can be used to filter incoming and outgoing signals. The inductor also has a self-resonant frequency, which is the frequency at which the reactive impedance reaches a minimum, helping to filter out any high-frequency components.

In addition, the LAL04KB1R2M offers high reliability, which is essential for primary or secondary filtering applications where good performance and long life is necessary. It has a compensated temperature coefficient that allows it to be stable over a wide temperature range, and it is compatible with all lead-free and RoHS compliant soldering processes.

In conclusion, the LAL04KB1R2M is a widely used, reliable, and cost-effective fixed inductor offering robust performance and high reliability. It is suitable for use in a wide variety of applications, including power supplies and power conversion systems, DC/DC converters, AC/DC converters, and RF and audio filters. Its low cost, small size, and high performance make it an ideal choice for many compact, high-power, and high-density applications.

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