The PDF-4E-1300 SQ from Crane Aerospace & Electronics is a Power Divider with Frequency 100 to 2000 MHz, Insertion Loss 2 to 2.5 dB, Isolation 20 to 23 dB, Input Power 1 W, Amplitude Balance 0.4 to 0.5 dB. Tags: Flatpack, Lumped Element Power Divider. More details for PDF-4E-1300 SQ can be seen below.