The PEP-4S Series from Crane Aerospace & Electronics is a Analog Phase Shifter with Frequency 10 to 400 MHz, Phase Shift 360 Degree, Insertion Loss 3 dB, Control Voltage 0.5 to 30 V, Operating Temperature -55 to 85 Degree C. Tags: Drop-in. More details for PEP-4S Series can be seen below.