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Bead core SH type is a small NiZn(Nickel Zinc) cable emi suppression soft ferrite bead core, commonly suit for small cable application, frequency cover 1mhz-1ghz, also used audio coils, axial bead inductor,wireless applications,to reduce noise interference Effectively. Material initial permeability from 40-2000.
Rod core R type ferrite core, is a rod shape Nickel Zinc or Manganese Zinc soft ferrite, commonly used for coils after winding with excellent withstand voltage and current,Rod coil inductor in igniter, carbon brush, audio antenna, wireless antenna widely used.