The 6750BL14A0100 from Johanson Technology is a Balun with Frequency 4.9 to 8.5 GHz, Amplitude Balance ± 1.25 to ± 1.5 dB, Phase Balance 180 ± 13 / 180 ± 14 Degree, Insertion Loss 0.7 to 1.5 dB, Power 3 W. Tags: Surface Mount, Unbalanced to Balanced. More details for 6750BL14A0100 can be seen below.