IRF01BH221K

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Fixed Inductors are the most widely used type of inductors in the electronics industry. They are used in various applications, from high-end applications such as power supplies to more basic uses such as audio circuits. The IRF01BH221K is a fixed inductor commonly used in electronics applications. This article will provide an overview of the IRF01BH221K\'s application field and working principle.

IRF01BH221K Application Field

The IRF01BH221K is a fixed inductor designed specifically for DC-DC converter applications. It is ideal for voltage buck, boost, flyback, forward, and half-bridge converter designs. Its low Parasitic Equivalent Series Resistance (ESR) and high leakage make it well-suited for these applications, which require low resistance and high-current carrying capability.

The IRF01BH221K features a high inductance rating (2.2 mH ± 20%) and offers 1.692 A in maximum current with a rated temperature range of -40°C to +125°C. It is also RoHS compliant, making it safe and reliable for use in various applications. The IRF01BH221K is available in two sizes—a 5.5 x 12.7 mm size and a 7.2 x 11.8 mm size—allowing it to be used in space-constrained designs.

IRF01BH221K Working Principle

The IRF01BH221K is a fixed inductor, meaning that its inductance remains constant over varying current. This is in contrast to variable inductors, which are designed to adjust their inductance as the current changes. A fixed inductor works by generating a magnetic field using a coil of wire, which is wrapped around a specially designed ferrite core. The ferrite core serves to focus the magnetic field generated by the coil, thus increasing the inductance.

When a current passes through the coil, a magnetic field is generated in the core, which then induces an electromotive force in a conductor located near the coil. This electromotive force is proportional to the current in the coil, thus creating a self-sustaining oscillating electric current.

The IRF01BH221K is rated for a maximum current of 1.692 A. This is due to the fact that the ferrite core is only able to focus a certain amount of magnetic field before it saturates. As the current increases, so does the inductance drop, eventually causing the inductor to reach its maximum current.

Conclusion

The IRF01BH221K is a fixed inductor designed specifically for DC-DC converter applications. It is ideal for use in voltage buck, boost, flyback, forward, and half-bridge converter designs. It features a high inductance rating (2.2 mH ± 20%) and offers 1.692 A in maximum current with a rated temperature range of -40°C to +125°C. The working principle of the IRF01BH221K is based on a coil of wire wrapped around a ferrite core, which generates a magnetic field that induces an electromotive force when a current passes through it. This article has provided an overview of the IRF01BH221K\'s application field and working principle.

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