CDRH104RNP-151NC Inductors, Coils, Chokes

A fixed inductor is an inductive component that stores energy in the form of an electromagnetic field when a current is applied to it. The CDRH104RNP-151NC is a fixed inductor in the Power Inductors Series, designed with low DCR and high current capacity. It is widely used in power supply, automotive, and DC-DC converter circuits.

The CDRH104RNP-151NC is a 100μH mini molded power inductors, with an inductance tolerance of 20%, maximum working frequency of 50kHz, and a maximum DC working current of 7.1A. It is made of ferrite and has an operating temperature range of -40°C to +130°C. The package size of 4.3 x 3.18 mm makes this inductor suitable for small circuit boards.

To understand the working principle of this component, it is important to understand inductance. In an electrical circuit, the amount of inductance is determined by the number of turns in the inductor and the shape of the core. When a current flows through an inductor, the magnetic field increases, creating a voltage drop in the opposite direction, which is called back EMF. This back EMF is proportional to the rate of change of current in the inductor, and through Lenz\'s law, opposing the increase of the current.

The current limiting properties of an inductor come from the combined effect of the back EMF and the resistive losses associated with the DCR of the inductor. The CDRH104RNP-151NC has a low DCR value of 0.22 mΩ which helps reduce these resistive losses and gives it the ability to accurately reproduce the voltage waveform through a low-pass filter effect. This makes it suitable for voltage conversion and transient voltage control applications, such as DC-DC converters.

Overall, the CDRH104RNP-151NC is an excellent fixed inductor for use in a variety of power supply, automotive, and DC-DC converter applications. Its low DCR and high current capacity make it ideal for noise filtering and smooth voltage conversion. It is also suitable for circuits that are subject to high temperature fluctuations, as its operating temperature range is -40°C to +130°C.