The PEF-03A Series from Crane Aerospace & Electronics is a Analog Phase Shifter with Frequency 500 to 1500 MHz, Phase Shift 180 Degree, Insertion Loss 2 to 3 dB, Control Voltage 0 to 30 V, Operating Temperature -55 to 85 Degree C. Tags: Flatpack. More details for PEF-03A Series can be seen below.