OEM is accepted Free sample is available Visit factory is welcomed Specifications of SOFT MAGNETIC POWER CORE: 1.Type: Toroidal Core/EE Core/EC Core/PQ Core/UU Core/EI Core/EFD Core/RM Core/POT Core/EPC Core. 2.Compostion: Mn-Zn ferrite power. 3.Grade: RM2.3KD,RM3.3KD. 4.Environment: RoHS. 5.Certification: ISO9001:2000. 6.Advantages: Fast and large batch supply capacity. Low Loss and High Frequency. Competitive price. z