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E41/17/12-3F3 is an E Core from Ferroxcube, made from 3F3 material. This ferrite E41 core is ungapped and has an AL value of 3575 with a tolerance of +/-25%.
Ferroxcube is a world-leading manufacturer of high performance ferrite materials and E41/17/12-3F3 is part of their range of E Cores. This E41 core is made from 3F3 ferrite, which is a medium frequency power material that is suitable (at frequencies of 0.2-0.5 MHz) for use in general purpose and power transformers. The E41/17/12-3F3 E core from Ferroxcube is ungapped and has an AL value of 3575 with a tolerance of +/-25%.