The PDF-4E-50 from Crane Aerospace & Electronics is a Power Divider with Frequency 2 to 100 MHz, Insertion Loss 0.6 to 1 dB, Isolation 25 to 30 dB, Input Power 1 W, Amplitude Balance 0.1 to 0.2 dB. Tags: Flatpack. More details for PDF-4E-50 can be seen below.