The RBL-2450-2012-G-TR from Raltron is a Balun with Frequency 2.4 to 2.5 GHz, Amplitude Balance ±2 dB, Phase Balance ±10 Degree, Phase_Shift 180 Degree, Common Mode Rejection 20 dB @4800 to 5000 MHz. Tags: Surface Mount, Balanced to Balanced. More details for RBL-2450-2012-G-TR can be seen below.