The 0RQB-H0S12D from Bel Fuse is a DC to DC Converter with Input Voltage 45 to 55 V, Output Voltage 1 11.3 V, Output Current 1 53000 mA, Output Power 600000 mW, Operating Temperature -40 to 85 Degree C. Tags: Through Hole, Buck/Step down. More details for 0RQB-H0S12D can be seen below.