The PKB4313DA from Flex Power Modules is a DC to DC Converter with Input Voltage 36 to 75 V, Output Voltage 1 12 V, Output Current 1 32.5 A, Output Power 390000 mW, Isolation Voltage 750 to 2250 Vdc. Tags: Through Hole, Buck/Step down. More details for PKB4313DA can be seen below.