The 0RQB-50Y12L from Bel Power Solutions is a DC to DC Converter with Input Voltage 14.4 to 154.0 V, Output Voltage 1 12 V, Output Current 1 0 to 4200 mA, Output Power 50000 mW, Operating Temperature -40 to 105 ºC. Tags: Through Hole, Buck/Step down. More details for 0RQB-50Y12L can be seen below.