The TDR 3-4813WISM from Traco Power is a DC to DC Converter with Input Voltage 18 to 75 V, Output Voltage 1 15 V, Output Current 1 0.2 A, Output Power 3 W, Isolation Voltage 1.6 kV. Tags: Surface Mount, Buck/Step down. More details for TDR 3-4813WISM can be seen below.