171-8733, XP Power, XP Power QSB600 DC-DC Converter, 12V dc/ 50A Output, 18 → 36 V dc Input, 600W, PCB Mount, +100°C Max Temp -40°C XP Power QSB600 DC-DC Converter, 12V dc/ 50A Output, 18 → 36 V dc Input, 600W, PCB Mount, +100°C Max Temp -40°C