The TRN 3-4811 from Traco Power is a DC to DC Converter with Input Voltage 36 to 75 V, Output Voltage 1 5 V, Output Current 1 0.6 A, Output Power 3 W, Isolation Voltage 1.6 kV. Tags: Through Hole, Buck/Step down. More details for TRN 3-4811 can be seen below.