The APD-2-0518-YR1 from Quantic PMI (Planar Monolithics) is a Power Divider with Frequency 500 to 18000 MHz, Insertion Loss 1.8 to 3.5 dB, Input Power 25 W, Amplitude Balance 0.2 to 0.45 dB, Phase Balance 4 to 5 degrees. Tags: Module with Connectors. More details for APD-2-0518-YR1 can be seen below.