The 5425BL07A0200 from Johanson Technology is a Balun with Frequency 4.9 to 5.95 GHz, Amplitude Balance 2.0 dB, Phase Balance 15 Degree, Insertion Loss 1.2 dB, Power 2 W. Tags: Ceramic, Surface Mount, Unbalanced to Balanced. More details for 5425BL07A0200 can be seen below.