The PDM-21-19.5G SQ from Crane Aerospace & Electronics is a Space Qualified Power Divider with Frequency 17.5 to 21.5 GHz, Insertion Loss 0.9 dB, Isolation 18 dB, Input Power 2 W, Amplitude Balance 0.25 dB. Tags: Module with Connectors, Stripline. More details for PDM-21-19.5G SQ can be seen below.