1.5:1 Baluns/Ununs

442300386 - 1.5:1 Baluns/Ununs
+3

Ferrite Snap On Combo Pack, Mix 31, 61, 75 ID=3/4"/18.8mm, RFI Range 150 KHz-2000 MHz, 8 Filters

FSCP-316175-3/4-8
$89.95
In stock
1
Product Details
Initial Permeability (@ 10KHz): 1500
Material: MnZn
Max cable size - in/mm: .5/12.7
OD (A) - in/mm: 1.22/31
ID (B) - in/mm: .514/13.1
Length (C) - in/mm: 1.55/5
Z (ohms per bead - single turn 1 MHz): 25
Z (ohms per bead - single turn 5 MHz): 71
Z (ohms per bead - single turn 10 MHz): 100
Z (ohms per bead - single turn 25 MHz): 156
Z (ohms per bead - single turn 100 MHz): 260
Z ohms (per bead - single turn 250 MHz): 260

Now you can get a ferrite snap on combo pack of 8 RFI filters in 3/4" ID size with all three filter ranges (great if you don't know the interfering frequency and need to cover the entire range when troubleshooting an RFI problem).

Mix 75 covers 150 KHz to 10 MHz (2 filters)

Mix 31 covers 1-300 MHz (usable to 500 MHz) (4 filters)

Mix 61 covers 200-2000 MHz (2 filters)

Use multiple turns for best results. (2 turns - 4 times a single turn, 3 turns = 9 times a single turn, etc.)
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50 ohm coax to 75 ohm balanced output baluns are useful for low (< 1 wavelength) dipoles exhibiting 75 ohm characteristic impedance or for matching to balanced ladder line whose endpoint impedance is near 75 ohms.

50 ohm coax to 75 ohm CATV coax connections are easily done with a 1.5:1 unun with SO-239 connectors on input and output.  Likewise 50 ohm coax to unbalanced verticals or loads near 75 ohms can be matched with a 1.5:1 unun.