The SRSB-40U03L from Bel Fuse is a DC to DC Converter with Input Voltage 18 to 75 V, Output Voltage 1 3.3 V, Output Current 1 10000 mA, Output Power 33000 mW, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, Buck/Step down. More details for SRSB-40U03L can be seen below.