The TSR 0.6-4890WI from Traco Power is a DC to DC Converter with Input Voltage 14 to 72 V, Output Voltage 1 9 V, Output Current 1 0.6 A, Operating Temperature -40 to 85 Degree C, Storage Temperature -55 to 125 Degree C. Tags: Through Hole, Buck/Step down. More details for TSR 0.6-4890WI can be seen below.