The PKJ7216J from Flex Power Modules is a DC to DC Converter with Input Voltage 60 to 160 V, Output Voltage 1 43.2 to 52.8 V, Output Current 1 4.2 A, Output Power 200000 mW, Isolation Voltage 1600 to 4000 Vdc. Tags: Through Hole, Buck/Step down. More details for PKJ7216J can be seen below.