The TDU 1-1211 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 0.2 A, Output Power 1 W, Isolation Voltage 1.5 kV. Tags: Through Hole, Buck/Step down. More details for TDU 1-1211 can be seen below.