The RSDW40F-03 from Mean Well is a DC to DC Converter with Input Voltage 9 to 36 V, Output Voltage 1 3.3 V, Output Current 1 10000 mA, Output Power 40000 mW, Operating Temperature -40 to 90 Degree C. Tags: Through Hole, Buck/Step down. More details for RSDW40F-03 can be seen below.