The IRS-12/4.5-Q12NF-C from Murata is a DC to DC Converter with Input Voltage 9 to 36 V, Output Voltage 1 12 V, Output Current 1 4500 mA, Output Power 54 W, Isolation Voltage 2828 V. Tags: Through Hole, Buck/Step down. More details for IRS-12/4.5-Q12NF-C can be seen below.