The TCN1-23+ from Mini Circuits is a Balun with Frequency 1.3 to 2.3 GHz, Amplitude Balance ± 0.41 to 0.95 dB, Phase Balance 1.46 to 6.61 Degree, Insertion Loss 0.91 to 1.04 dB, Power 5 W. Tags: Surface Mount, Balanced to Balanced. More details for TCN1-23+ can be seen below.