The 224-1W-4812 from Vigortronix is a DC to DC Converter with Input Voltage 18 to 72 V, Output Voltage 1 9 V, Output Current 1 11 to 111 mA, Output Power 1000 mW, Isolation Voltage 1500 V. Tags: Through Hole, Buck/Step down. More details for 224-1W-4812 can be seen below.