The THN 30-4812 from Traco Power is a DC to DC Converter with Input Voltage 36 to 75 V, Output Voltage 1 12 V, Output Current 1 2.5 A, Output Power 30 W, Isolation Voltage 1.6 kV. Tags: Through Hole, Buck/Step down. More details for THN 30-4812 can be seen below.