✔ Specification Of Inductor

Specification Of Inductor

- June 13, 2019

Ceramic has very low thermal co efficient of expansion so even for a range of operating temperatures the stability of the inductors inductance is high. Inductors coils and chokes are passive components that are designed to resist changes in current and store energy in the form of a magnetic field.

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Ceramic core inductors are referred as air core inductors.

Specification of inductor. Inductors are devices that allow dc signals to pass through without almost any impediment but which block the passing of high frequency signals. An inductor is a passive electronic component that storesenergy in the form of a magnetic field. Inductance also depends on the radius of the coil and on the type of material around which the coil is wound.

Inductors have values that typically range from 1 uh 10 6 h to 20 h. The inductance is directly proportional to the number ofturns in the coil. The basic characteristics of an inductor are represented by a graph plotting resistanceimpedance versus frequency.

The dc resistance dcr specification of an inductor is the amount of resistance that an inductor has for signals with frequencies of or near 0hz. Nominal inductance is generally expressed in microhenry millihenry or henry. In an inductor it is possible to saturate the core because there is a limit to the level of magnetic flux a magnetic core such as iron ferrite or another compound can take.

Many inductors have a magnetic core made of iron or ferrite inside the coil which serves to increase the magnetic field and thus the inductance. Find inductors coils and chokes on globalspec by specifications. Ceramic is the most commonly used material for inductor cores.

This is an example of an inductor 6 mm on a side of height 2 mm and with inductance 47 uf. The blue line is the impedance and the green line is x wl. Inductor specifications inductor specifications normally include the value of inductance expressed in h mh mh or nh the current rating ie the maximum current which can be continuously applied to the inductor under a given set of conditions and the accuracy or tolerance quoted as the maximum permissible percentage deviation from the marked value.

In its simplest form an inductor consistsof a wire loop or coil. The red line is rac the iron loss. The saturation current is another parameter or specification which is of importance for an inductor.

Nominal inductance the first specification that needs to be considered is an inductors nominal inductance or the value of inductance that the inductor is supposed to offer at a particular frequency and voltage. Ceramic is the most commonly used material for inductor cores.