The PKB4217ND from Flex Power Modules is a DC to DC Converter with Input Voltage 36 to 75 V, Output Voltage 1 10 V, Output Current 1 25 A, Output Power 250000 mW, Isolation Voltage 750 to 2250 Vdc. Tags: Through Hole, Buck/Step down. More details for PKB4217ND can be seen below.