The RBL-2012-A8-TR from Raltron is a Balun with Frequency 2.4 to 2.5 GHz, Amplitude Balance ±2 dB, Phase Balance ±15 Degree, Phase_Shift 180 Degree, Insertion Loss 1.5 dB. Tags: Surface Mount, Balanced to Balanced. More details for RBL-2012-A8-TR can be seen below.