12:1 Baluns/Ununs

4695534813 - 12:1 Baluns/Ununs
+2

FB153-43 - 1/2" OVAL ID/12.95mm, RFI Range 25-300 MHz

Store/Ferrite Core Products/Mix 43/Slip On - Mix 43 - RFI Range 20-300 MHz
SKU FB153-43
$4.95
Bulk pricing available for quantities of 10 units or more
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QuantityPrice per itemDiscount
10 items$4.4510% off
108 items$3.9520% off
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FB153-43 - 1/2" OVAL ID/12.95mm, RFI Range 25-300 MHz
Store/Ferrite Core Products/Mix 43/Slip On - Mix 43 - RFI Range 20-300 MHz
Product Details
MPN: FB153-43
Initial Permeability (@ 10KHz): 850
Material: NiZn
Max cable size - in/mm: .5/12.6
OD (A) - in/mm: 1.53"/38.5MM
ID (B) - in/mm: 1.03" by .51" OVAL
Length (C) - in/mm: 1.126"/28.6
Z (ohms per bead - single turn 10 MHz): 71
Z (ohms per bead - single turn 25 MHz): 102
Z (ohms per bead - single turn 100 MHz): 152
Z ohms (per bead - single turn 250 MHz): 213
Case/Box lot size: 108

Ferrite Slip On Bead,Oval ID = .505in/12.95mm, Mix 43, 1 piece, 108 per case - make excellent bead baluns/chokes

Oval core make better chokes than circular core - approximately 7 turns RG400/core

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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.