Low-cost ferrites handle 10 to 1,000 MHz

The CE83 material ferrites are available in multiple solid and split core styles to fit data and power cables with diameters from .138 to .500 inches. The material is optimized for problem frequencies between 10 MHz and 1 GHz, with peak impedance at 300 MHz.

The devices have optional nylon plastic case enclosures with split cores. Custom sizes are available. The CE83B0384 solid round EMI cable core, for example, has 90-Ω impedance at 25 MHz and 180-Ω at 100 MHz and costs $0.28 ea/500.