The TRI 1-2422SM from Traco Power is a DC to DC Converter with Input Voltage 21.6 to 26.4 V, Output Voltage 1 12 V, Output Current 1 42 mA, Output Power 1 W, Output Voltage 2 -12 V. Tags: Surface Mount, Buck/Step down. More details for TRI 1-2422SM can be seen below.