The TDN 1-1222WI from Traco Power is a DC to DC Converter with Input Voltage 4.5 to 18 V, Output Voltage 1 12 V, Output Current 1 0.045 A, Output Power 1 W, Output Voltage 2 -12 V. Tags: Through Hole, Buck-Boost. More details for TDN 1-1222WI can be seen below.