4445-05K

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Fixed inductors are electrically passive, two-terminal components that store energy in the form of a magnetic field. Their primary function is to carry the current in the form of an electric field and convert electrical energy into magnetic form. In this article, we will discuss the application field and working principles of the 4445-05K.

The 4445-05K is an axial-lead, toroidal, non-shielded fixed inductor used in switching power supplies, filtering circuits and DC/DC converters. It is constructed of laminated steel cores, with an NRL of 0.85mH or 1.9mH and an inductance tolerance of +/-10%. The 4445-05K can handle up to 4.0 amps and can be used up to a maximum temperature of +105°C, although at higher temperatures it may become more noisy and unstable. The 4445-05K is available in lead-free and RoHS-compliant versions.

The working principle of the 4445-05K is based on the fact that it stores energy in the form of a magnetic field. The inductor allows the current to flow in one direction and at the same time the magnetic field it produces opposes the change of the current. This is known as inductance. The reason why the 4445-05K can maintain its inductance is because it is constructed of laminated steel cores.

The 4445-05K can be used in power supplies, filters and DC/DC converters. In power supplies, the inductor acts as an energy storage device and prevents the voltage spikes that would otherwise occur during the current flow. In filters and DC/DC converters, the inductor is used to block DC from passing through the circuit while allowing AC signals to pass. As a result, the 4445-05K can regulate the current and voltage in the circuit.

Finally, it is important to note that the 4445-05K is not suitable for applications that require high power, as it can only handle up to 4.0 amps. In addition, it is also important to consider the temperature limits of the 4445-05K which can become noisy and unstable at higher temperatures.

In conclusion, the 4445-05K is a fixed inductor used in switching power supplies, filtering circuits and DC/DC converters. It stores energy in the form of a magnetic field and can be used to regulate current and voltage in the circuit. However, it is important to consider its temperature limits and power handling capacity before using it in any application.

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