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The WBT2.5-6SL from Coilcraft is a Balun with Frequency 0.05 to 100 MHz, Impedance Ratio (Num) 1:2.5, Current 250 mA. More details for WBT2.5-6SL can be seen below.
1:1 Transmission Line Transformer from 45 to 1200 MHz
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