The THD 12-1209 from Traco Power is a DC to DC Converter with Input Voltage 9 to 18 V, Output Voltage 1 2.5 V, Output Current 1 3.5 A, Output Power 12 W, Isolation Voltage 1.5 kV. Tags: Through Hole, Buck/Step down. More details for THD 12-1209 can be seen below.