The NCS2-232+ from Mini Circuits is a Balun with Frequency 900 MHz to 2.3 GHz, Amplitude Balance ± 0.10 to 0.90 dB, Phase Balance 0.23 to 8.09 Degree, Insertion Loss 0.71 to 1.47 dB, Power 2 W. Tags: Ceramic, Unbalanced to Balanced. More details for NCS2-232+ can be seen below.