The TTC1-682W from Mini Circuits is a Balun with Frequency 800 MHz to 6.8 GHz, Amplitude Balance 0.8 to 1.9 dB, Phase Balance 6 to 12 Degree C, Common Mode Rejection 17 to 21 dB, Insertion Loss 1.2 to 3.9 dB. Tags: Surface Mount. More details for TTC1-682W can be seen below.