The BMR685X301/001 from Flex Power Modules is a DC to DC Converter with Input Voltage 36 to 75 V, Output Voltage 1 25 to 55 V, Output Current 1 26 A, Output Power 1300000 mW, Isolation Voltage 750 to 2250 Vdc. Tags: Through Hole, Buck-Boost. More details for BMR685X301/001 can be seen below.