The iQG48042A120V-1U9-R from TDK Corporation is a DC to DC Converter with Input Voltage 39 to 75 V, Output Voltage 1 12 V, Output Current 1 42000 mA, Output Power 504000 mW, Operating Temperature -40 to 125 Degree C. Tags: Through Hole, Buck/Step down. More details for iQG48042A120V-1U9-R can be seen below.