The TDN 1WI Series from Traco Power is a DC to DC Converter with Input Voltage 4.5 to 75 V, Output Voltage 1 3.3 to 24 V, Output Current 1 0.035 to 0.3 A, Output Power 1 W, Output Voltage 2 -15 to -5 V. Tags: Through Hole. More details for TDN 1WI Series can be seen below.