The Amorphous Alloy's lack of a crystalline structure causes it to have low hysteresis loss^*3. In addition, it's thinness and high electrical resistivity^*4 create a characteristically low eddy-current loss^*5. Therefore, use of the Amorphous Alloy results in lower core loss than magnetic steel sheets^*6.
For over 20 years it has been recognized that core loss can be reduced by controlling magnetic domain^*7 structure. However, technologies that can be adapted for mass production have not been established. Solving this issue that has plagued the industry for many years, Hitachi Metals has successfully developed a magnetic domain structure control technology that adapts to mass production. By applying this unique technology to Metglas^™, developed by the company, Hitachi Metals has developed MaDC-A^™, a new product with significantly reduced core loss.
MaDC is an acronym for "Magnetic Domain Controlled," and MaDC-A^™ features approximately 25% lower core loss than conventional products, thus greatly contributing to size and weight reduction, and the higher efficiency of distribution transformers. It is highly expected to reduce environmental burdens, saving energy and contributing to the prevention of global warming. In addition to MaDC-A^™, Hitachi Metals has also developed MaDC-F^™, a soft ferrite material that has been on the market since 2019, into a series, each of which is a product that outperforms conventional products to meet the need for higher efficiency.

Hitachi Metals will continue to improve the performance of materials and contribute to the further improvement of the performance of electric and electronic equipment to meet the wide range of customer needs.