Powder cores cut their losses

Chang Sung Corp has developed a complete range of Sendust powder cores made from ferrous alloy powders for low losses at elevated frequencies.

Chang Sung Corp has developed a complete range of Sendust powder cores made from ferrous alloy powders for low losses at elevated frequencies.

Small airgaps distributed evenly throughout the cores increase the amount of DC that can be passed through the winding before core saturation occurs.

The near-zero magnetostriction alloy makes Sendust ideal for eliminating audible frequency noise in filter inductors.

In high-frequency applications, core losses of powdered iron, for instance, can be a major factor in contributing to undesirable temperature rises.

Sendust cores are ideal because their losses are significantly less, resulting in lower temperature rises.

Sendust will often offer a reduction in core size compared with powdered iron cores in any given application.

Cores are available with outside diameters from 3.5 to 78.9mm three material grades and with a range of initial permabilities from 26 to 125u.

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