The BMR454XX02/003 from Flex Power Modules is a DC to DC Converter with Input Voltage 36 to 75 V, Output Voltage 1 3 to 6.7 V, Output Current 1 40 A, Output Power 240000 mW, Isolation Voltage 1500 Vdc. Tags: Through Hole, Buck/Step down. More details for BMR454XX02/003 can be seen below.