The 0915BM15A0001 from Johanson Technology is a Balun with Frequency 902 to 928 MHz, Phase Balance 15 Degree, Insertion Loss 2.0dB, Power 1 W, Return Loss 9.5 dB. Tags: Ceramic, Surface Mount, Unbalanced to Balanced. More details for 0915BM15A0001 can be seen below.