The 0RQ1-H0T12B from Bel Fuse is a DC to DC Converter with Input Voltage 48 to 48 V, Output Voltage 1 12 V, Output Current 1 50000 mA, Output Power 600000 mW, Operating Temperature -40 to 85 Degree C. Tags: Through Hole, Buck/Step down. More details for 0RQ1-H0T12B can be seen below.