5:1 Baluns/Ununs

5:1 CUBE™ Unun – Model CU-5-1500 (50:250 Ohm, 1.8-61 MHz, 1.5KW PEP)

Application. For traveling wave, end fed or portable 20-31 foot vertical antennas the 5:1 unun makes a good transformer for converting 50 ohm coax to a 250 ohm feed point. If you use the antenna on multiple bands, the feed point impedance may not always be 250 ohms and use of the unun at high (>350 ohms) or low (<100 ohms) will require reduced power input or the unun may have its power ratings exceeded and damage to the unun may occur. The (5:1 conversion ratio will change for loads other than 250 ohms unbalanced.

Typical application:

CU 5 1500 antenna - 5:1 Baluns/Ununs

Also available as a balanced output – CB-5-1500

4434862999 - 5:1 Baluns/Ununs

BN43-7051 - ID 0.250" Dia (6.35mm) Length 1.130" (28.7mm) Width 0.561" (14.25mm), RFI Range 20-250 MHz, Transformer Range:1-200 MHz

Store/Ferrite Core Products/Mix 43/Slip On - Mix 43 - RFI Range 20-300 MHz
SKU BN43-7051
$4.95
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BN43-7051 - ID 0.250" Dia (6.35mm) Length 1.130" (28.7mm) Width 0.561" (14.25mm), RFI Range 20-250 MHz, Transformer Range:1-200 MHz
Store/Ferrite Core Products/Mix 43/Slip On - Mix 43 - RFI Range 20-300 MHz
Product Details
MPN: BN43-7051
Material: 43
Max cable size - in/mm: .250/6.35mm
OD (A) - in/mm: .561/14.25mm) depth
ID (B) - in/mm: .250/6.35mm) hole size
Length (C) - in/mm: 1.13"/28.7MM height
Z (ohms per bead - single turn 1 MHz): 5

Ferrite Binocular Bead, ID 0.250" Hole Dia (6.35mm), Length 1.130" (28.7mm) Width 0.561" (14.25mm), Mix 43 - excellent tor individual wire, small coax common mode choke or impedance transformer, 1 piece


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