The RW2-4809S/H3 from Recom Power is a DC to DC Converter with Input Voltage 36 to 72 V, Output Voltage 1 9 V, Output Current 1 mA, Output Power 2000 mW, Operating Temperature -40 to 85 Degree C. Tags: Through Hole, Buck/Step down. More details for RW2-4809S/H3 can be seen below.