The BD2327N50100AHF from TTM Technologies is a Balun with Frequency 2.3 to 3.8 GHz, Amplitude Balance ±0.4 to 1 dB, Phase Balance 1 to 7 Degree, Insertion Loss 0.6 to 0.8 dB, Power 0.6 to 1 W. Tags: Surface Mount, Unbalanced to Balanced. More details for BD2327N50100AHF can be seen below.