JFE Ferrite Cores Material Types and its Specifications For low power loss transformer; MB1, MB3, MB4, MBT1 (PDF 82KB) For EMI/EMC(noise prevention), pulse trans.; MA055, MA070, MA085, MA100, MA120, MA150 (PDF 76KB) For high frequency, low power loss transformer; MC2 (PDF 70KB) For ADSL modem trans MAT05 (PDF 62KB) JFE Ferrite Cores