Among the product highlights in the completely revised 2013 edition of the EPCOS Ferrites and Accessories Data Book are innovative power materials for a wide range of temperatures, which enable the design of energy-efficient power supplies. Also new in the 621-page book are the large K10 ring cores for EMC in large manufacturing installations, as well as a wide range of accessories for ring cores, such as base plates and housings. 
<a href=http://www.epcos.com/publications target="_blank"> www.epcos.com/publications </a>