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The 3700BL15B100 from Johanson Technology is a Balun with Frequency 3400 to 4000 MHz, Impedance Ratio (Num) 1:2, Insertion Loss 1.0 dB, Amplitude Balance 1.0 dB, Phase Balance 180°±20° degrees. More details for 3700BL15B100 can be seen below.
1:1 Transmission Line Transformer from 45 to 1200 MHz
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