The PDM-21-15G SQ from Crane Aerospace & Electronics is a Space Qualified Power Divider with Frequency 12 to 18 GHz, Insertion Loss 0.7 dB, Isolation 19 dB, Input Power 2 W, Amplitude Balance 0.2 dB. Tags: Module with Connectors, Wilkinson. More details for PDM-21-15G SQ can be seen below.