The RBL-1608-AC6-TR from Raltron is a Balun with Frequency 2.4 to 2.5 GHz, Amplitude Balance ±2.3 dB, Phase Balance ±10 Degree, Phase_Shift 180 Degree, Insertion Loss 1.6 to 1.8 dB. Tags: Surface Mount, Balanced to Balanced. More details for RBL-1608-AC6-TR can be seen below.