The TDN 3-4815WISM from Traco Power is a DC to DC Converter with Input Voltage 18 to 75 V, Output Voltage 1 24 V, Output Current 1 0.125 A, Output Power 3 W, Isolation Voltage 1.6 kV. Tags: Surface Mount, Buck-Boost. More details for TDN 3-4815WISM can be seen below.