The RS3-4812SZ/H3 from Recom Power is a DC to DC Converter with Input Voltage 20 to 60 V, Output Voltage 1 12 V, Output Current 1 250 mA, Output Power 3000 mW, Operating Temperature -40 to 71 Degree C. Tags: Through Hole, Buck/Step down. More details for RS3-4812SZ/H3 can be seen below.