The TES 2-1211M from Traco Power is a DC to DC Converter with Input Voltage 10.8 to 13.2 V, Output Voltage 1 5 V, Output Current 1 0.4 A, Output Power 2 W, Isolation Voltage 4 kV. Tags: Surface Mount, Buck/Step down. More details for TES 2-1211M can be seen below.