The 0RQB-F5S11B from Bel Fuse is a DC to DC Converter with Input Voltage 38 to 56 V, Output Voltage 1 10.6 V, Output Current 1 52000 mA, Output Power 550000 mW, Operating Temperature -5 to 85 Degree C. Tags: Through Hole, Buck/Step down. More details for 0RQB-F5S11B can be seen below.