The TEC 2-4819 from Traco Power is a DC to DC Converter with Input Voltage 36 to 75 V, Output Voltage 1 9 V, Output Current 1 0.222 A, Output Power 2 W, Isolation Voltage 1.6 kV. Tags: Through Hole, Buck/Step down. More details for TEC 2-4819 can be seen below.