744772103

Fixed Inductors

Fixed inductors are components in electric circuits that contain coils of insulated wire wound around perforated metal cores, or other magnetic materials to create a magnetic field. Commonly used in electrical applications such as automobiles, home appliances, and audio equipment, fixed inductors have explicit parameters such as inductance, current, and resistance.

744772103 Application Field and Working Principle

The 744772103 fixed inductor is a part of the large family of fixed inductors produced by Coilcraft. The 744772103 makes use of a micro SMD package and provides a low profile of 1.2 millimeters and operates at a working frequency range of 16kHz to 200kHz. This makes it an ideal device for flyback, step-down, and step-up DC-DC converters.

The 744772103 is designed with a nickel-zinc ferrite core, which provides maximum frequency range up to 200kHz. The metal core is topped with a four-sided high-performance ferrite material that helps in increasing power efficiency and minimizes losses in the components. The 744772103 fixed inductor features a wire-bonded interior design, which helps in reducing the resistance in the circuit and enhancing the overall performance of the device.

The 744772103 fixed inductor works by changing electrical energy into magnetic energy. When an alternating current is passed through the inductor, the coils behave like an electromagnet and create a magnetic field. This magnetic field gets impacted by the metal core, which creates opposing forces. This magnetic field stores energy, and the change in the current flow induces the electromagnetic flux.

The primary function of the 744772103 fixed inductor is to stabilize the current flow. Based on the opposition of the metal core, the inductor has to burn some of the energy, which further reduces current flow. This reduces the voltage across the inductor and helps to reduce the power shocks. Apart from this, fixed inductors can also be used to filter the noise from the signal, as well as to store energy in the unit.