The SRSB-40U05L from Bel Fuse is a DC to DC Converter with Input Voltage 18 to 75 V, Output Voltage 1 5 V, Output Current 1 8000 mA, Output Power 40000 mW, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, Buck/Step down. More details for SRSB-40U05L can be seen below.