FSB31-3/8, ID=3/8", RFI Range 1-300 MHz, Bulk Pack of 50

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

Product Details

MPN: FSB31-3/8-48

Initial Permeability (@ 10KHz): 1500

Material: MnZn

Max cable size - in/mm: .388/9.85

OD (A) - in/mm: .933/23

ID (B) - in/mm: .4/10.15

Length (C) - in/mm: 1.55/39.4

Z (ohms per bead - single turn 1 MHz): 18

Z (ohms per bead - single turn 5 MHz): 50

Z (ohms per bead - single turn 10 MHz): 81

Z (ohms per bead - single turn 25 MHz): 144

Z (ohms per bead - single turn 100 MHz): 240

Z ohms (per bead - single turn 250 MHz): 270

Ferrite Snap On, ID = .40 in/10.15mm, Mix 31 - 50 pieces

12:1 Baluns are useful between 600-650 ohm balanced loads the impedance at the end of the feed line is 600 ohms (1/2 wavelength feed line), or high impedance feeds for rhombic, T2FD and traveling wave antennas.

12:1 Ununs are useful between coax and long wires with a load impedance near 600 ohms like a beverage antenna. Shortwave listener antennas also can benefit with the 12:1 unun and it may provide a better match than 9:1 ununs – this means quieter noise levels and stronger signals so you can hear distance stations easier.