2:1 Baluns/Ununs +2FB102-43 - 1/2" ID/12.8mm, RFI Range 25-300 MHz, Bulk Pack of 100Store/Ferrite Core Products/Mix 43/Slip On - Mix 43 - RFI Range 20-300 MHzSKU FB102-43-100$245.00On SaleList price $330.00 Save 26%100 $2.45Quantity:1 Add More Add to CartGo to CheckoutSave this product for later Favorite Favorited View FavoritesCustomer reviewsNo reviews yet. Only signed-in customers who bought this product can leave reviews. To leave a review, sign inShare this product with your friendsShareSharePin itFB102-43 - 1/2" ID/12.8mm, RFI Range 25-300 MHz, Bulk Pack of 100Store/Ferrite Core Products/Mix 43/Slip On - Mix 43 - RFI Range 20-300 MHzProduct DetailsMPN: FB102-43Initial Permeability (@ 10KHz): 850Material: NiZnMax cable size - in/mm: .5/12.6OD (A) - in/mm: 1.02/25.9ID (B) - in/mm: .505/12.8Length (C) - in/mm: 1.125/28.6Z (ohms per bead - single turn 1 MHz): 15Z (ohms per bead - single turn 5 MHz): 60Z (ohms per bead - single turn 10 MHz): 91Z (ohms per bead - single turn 25 MHz): 145Z (ohms per bead - single turn 100 MHz): 235Z ohms (per bead - single turn 250 MHz): 275Case/Box lot size: 212Ferrite Slip On Bead, ID = .505in/12.8mm, Mix 43, Bulk Pack of 100Show More2:1 (100:50) Baluns are useful between 50 ohm coax and 100 ohm balanced lines for loops, cubical quads, log periodics and other antennas where the impedance at the end of the feedline is 100 ohms (1/2 wavelength feedline).