The BMR453XX03/004 from Flex Power Modules is a DC to DC Converter with Input Voltage 36 to 75 V, Output Voltage 1 5 V, Output Current 1 60 A, Output Power 300000 mW, Isolation Voltage 1500 Vdc. Tags: Through Hole, Buck/Step down. More details for BMR453XX03/004 can be seen below.