2:1 Baluns/Ununs

442283787 - 2:1 Baluns/Ununs
+3

FB200-31 - 1" ID, RFI Range 1-300 MHz

FB200-31
$13.95
In stock
1
Product Details
MPN: FB200-31
Initial Permeability (@ 10KHz): 1500
Material: MnZn
Max cable size - in/mm: 1/25.4
OD (A) - in/mm: 2.0/50.8 (+/- 1.3mm)
ID (B) - in/mm: 1.0/25.4 (+/- .8mm)
Length (C) - in/mm: 1.5/38.1 (+/- .75mm)
Z (ohms per bead - single turn 1 MHz): 40
Z (ohms per bead - single turn 5 MHz): 103
Z (ohms per bead - single turn 10 MHz): 140
Z (ohms per bead - single turn 25 MHz): 215
Z (ohms per bead - single turn 100 MHz): 365
Z ohms (per bead - single turn 250 MHz): 290

Ferrite Slip On Bead, ID = 1in/25.4mm, Mix 31

Application Note: use 5 turns of 1/4" coax for good feed line choke from 3-30 MHz, 5KW

Also useful for choking DC cables, large coax sleeve chokes

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2:1 (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).