The B0205F50200AHF from TTM Technologies is a Balun with Frequency 200 to 500 MHz, Amplitude Balance ± 0.1 to 0.4 dB, Phase Balance 1.3 to 3.1 Degree, Insertion Loss 1.3 to 1.6 dB, Power 2 W. Tags: Surface Mount, Balanced to Unbalanced. More details for B0205F50200AHF can be seen below.