FSB31-1/4, ID=1/4"/6.3mm, RFI Range 1-300 MHz, Case of 196 pieces

Store/Ferrite Core Products/Mix 31/Snap On - Mix 31 - RFI Range 1-300 MHz

Product Details

Initial Permeability (@ 10KHz): 1500

Material: MnZn

Max cable size - in/mm: .25/6.3

OD (A) - in/mm: .788/20

ID (B) - in/mm: .26/6.6

Length (C) - in/mm: 1.55/3.94

Z (ohms per bead - single turn 1 MHz): 28

Z (ohms per bead - single turn 5 MHz): 83

Z (ohms per bead - single turn 10 MHz): 105

Z (ohms per bead - single turn 25 MHz): 180

Z (ohms per bead - single turn 100 MHz): 310

Z ohms (per bead - single turn 250 MHz): 240

Ferrite Snap On, ID = .26 in/6.6mm, Mix 31, case of 196 pieces

fit RG8X, 58, 58, 6, audio, video, Ethernet, small AC/DC cables and many more with up to 1/4" outside diameter cable.

4:1 impedance transformers (Baluns and Unun configurations) are available in kit form or assembled form in a weatherproof Current Unun and Balun Enclosure which we call CUBE Baluns™ and CUBE Ununs™. All 4:1 impedance transformers use ferrite cores and the kit forms can be configured as a balun with balanced output of 200 ohms or as ununs with one side grounded.

4:1 baluns are designed for 50 ohm unbalanced (coax) input to 200 ohm output (either balanced or with one side grounded).

4:1 Baluns are useful between balanced lines for center fed Zepps, Off-center fed (OCF) dipoles with coax, G5RV antennas, full wave loops, NVIS dipoles that are close to ground and have impedance levels near 200 ohms or high impedance feeds for log periodic beams.

4:1 ununs are useful between coax and vertical antennas, monopole verticals or long wires with load impedances near 200 ohms.