Fixed Inductors

A fixed inductor is an electronic component, used mostly in radios and in power supplies. It consists of an inductor, an iron core and usually two sets of windings to increase inductance. Its main functions and uses are to block high-frequency signals, to provide a buffer between two parts of an electrical circuit, to regulate current and to decrease noise.

DFE252012PD-1R0M-P2 Application Field and Working Principle

The DFE252012PD-1R0M-P2 is a fixed inductor which provides an inductance of 1.2μH. This type of inductor has an operating temperature range between - 55°C and 105°C, and a recommended operating temperature range between - 20°C and 85°C. It is is suitable for commercial and automotive applications.

The DFE252012PD-1R0M-P2 has a high-reliability construction, which includes an electrostatically screened winding to reduce or eliminate winding leakage currents. This is an important factor when it is used in resonant circuits.

The primary purpose of an inductor is to provide an electrical circuit with a measure of inductance. This allows current to gradually flow through as the device interacts with the magnetic field which is created when current passes through the winding. Inductive reactance, which is measured in ohms, is the opposition to current flow, created by changing the current. The higher the inductance of the component, the greater the amount of current passing through the winding.

The core material used in a fixed inductor also plays an important part in determining the inductance of the component. Ferromagnetic material, like iron, is commonly used as the core material. While ferromagnetic material is best for high inductance, it can also result in higher losses, which is why other materials like powdered iron are used in some fixed inductors.

The physical structure of the fixed inductor is also important. The size of the inductor determines the amount of inductance and, depending on the size of the winding, the maximum frequency at which the component can be used. Smaller sizes can usually operate at higher frequencies than larger sizes.

The DFE252012PD-1R0M-P2 is a reliable, fixed inductor with low losses and high inductance valid for both commercial and automotive applications. Thanks to its construction, it enables self-shielded processes, while protecting parts of the circuit from high-frequency signals.