The TMR 3-4819WIR from Traco Power is a DC to DC Converter with Input Voltage 18 to 75 V, Output Voltage 1 9 V, Output Current 1 0.333 A, Output Power 3 W, Isolation Voltage 3 kV. Tags: Through Hole, Buck/Step down. More details for TMR 3-4819WIR can be seen below.