The THL 30-4812WI from Traco Power is a DC to DC Converter with Input Voltage 18 to 75 V, Output Voltage 1 12 V, Output Current 1 2.5 A, Output Power 30 W, Isolation Voltage 1.5 kV. Tags: Through Hole, Buck/Step down. More details for THL 30-4812WI can be seen below.