The NCS3-72+ from Mini Circuits is a Balun with Frequency 250 to 760 MHz, Amplitude Balance ± 0.07 to 0.32 dB, Phase Balance 0.17 to 6.63 Degree, Insertion Loss 0.75 to 89 dB, Power 2 W. Tags: Ceramic, Unbalanced to Balanced. More details for NCS3-72+ can be seen below.