The RW-243.3S/SMD from Recom Power is a DC to DC Converter with Input Voltage 18 to 36 V, Output Voltage 1 3.3 V, Output Current 1 650 mA, Output Power 3000 mW, Operating Temperature -40 to 80 Degree C. Tags: Through Hole, Buck/Step down. More details for RW-243.3S/SMD can be seen below.