The TEN 20-4810WIR from Traco Power is a DC to DC Converter with Input Voltage 18 to 75 V, Output Voltage 1 3.3 V, Output Current 1 4.5 A, Output Power 20 W, Isolation Voltage 1.6 to 2.25 kV. Tags: Through Hole, Buck/Step down. More details for TEN 20-4810WIR can be seen below.