The BD2425J50200AHF from TTM Technologies is a Balun with Frequency 2.4 to 2.5 GHz, Amplitude Balance ±0.1 to 0.5 dB, Phase Balance 2 to 6 Degree, Insertion Loss 0.6 to 0.8 dB, Power 2 W. Tags: Surface Mount, Balanced to Unbalanced. More details for BD2425J50200AHF can be seen below.