The SKM50B-12 from Mean Well is a DC to DC Converter with Input Voltage 18 to 36 V, Output Voltage 1 12 V, Output Current 1 0.41 to 4.17 mA, Output Power 50000 mW, Operating Temperature -40 to 75 Degree C. Tags: Through Hole, Buck/Step down. More details for SKM50B-12 can be seen below.