The TCM1-83X-1+ from Mini Circuits is a Balun with Frequency 10 MHz to 8 GHz, Amplitude Balance ± 0.14 to 1.32 dB, Phase Balance 0.26 to 13.02 Degree, Insertion Loss 0.95 to 1.65 dB, Current 30 mA. Tags: Surface Mount, Balanced to Balanced. More details for TCM1-83X-1+ can be seen below.