The BD0826J50200A00 from Anaren Inc is a Balun with Frequency 800 MHz to 2.6 GHz, Amplitude Balance ± 1.3 dB, Phase Balance 7 Degree, Insertion Loss 1.5 dB, Power 2 W. Tags: Surface Mount, Unbalanced to Balanced. More details for BD0826J50200A00 can be seen below.