Ferrite Tutorials Ferrite Mix Selection Ferrite Cross Reference Ferrite Toroid Tech Specs Ferrite Chatter Noise RF Toroid Calculator by VK3CPU +3 FB56-31 - 1/4" ID, RFI Range 1-300 MHz, 10 Pieces FB56-31-10 $15.00 In stock Quantity: 1 Add to Bag Product Details Initial Permeability (@ 10KHz): 1500 Material: MnZn Max cable size - in/mm: .25/6.3 OD (A) - in/mm: .562/14/3 ID (B) - in/mm: .25/6.4 Length (C) - in/mm: 1.125/28.6 Z (ohms per bead - single turn 1 MHz): 35 Z (ohms per bead - single turn 5 MHz): 91 Z (ohms per bead - single turn 10 MHz): 119 Z (ohms per bead - single turn 25 MHz): 181 Z (ohms per bead - single turn 100 MHz): 300 Z ohms (per bead - single turn 250 MHz): 280 Ferrite Slip On Bead - ID = .25 in/6.4mm - Mix 31, 10 pieces Save this product for later Favorite Tutorials