The TDR 2-2422SM from Traco Power is a DC to DC Converter with Input Voltage 18 to 36 V, Output Voltage 1 12 V, Output Current 1 0.083 A, Output Power 2 W, Output Voltage 2 -12 V. Tags: Surface Mount, Buck/Step down. More details for TDR 2-2422SM can be seen below.