The PKB4918HC from Flex Power Modules is a DC to DC Converter with Input Voltage 36 to 75 V, Output Voltage 1 1.2 to 1.65 V, Output Current 1 60 A, Output Power 90000 mW, Isolation Voltage 750 to 1500 Vdc. Tags: Through Hole, Buck/Step down. More details for PKB4918HC can be seen below.