The MD3.3S from Pico Electronics is a DC to DC Converter with Input Voltage 200 to 380 V, Output Voltage 1 3.3 V, Output Power 50000 mW, Operating Temperature -55 to 85 Degree C, Storage Temperature -55 to 105 Degree C. Tags: Through Hole, Buck/Step down. More details for MD3.3S can be seen below.