UL60950-1, cUL, EN60950-1. 5. SUCS Series, 1.5 W → 10 W, Single Output. The SUCS series of isolated DC-DC converters from Cosel are available with a rated output wattage of 1.5 W to 10 W. Available with SMD mounting or through hole mounting, these isolated DC-DC converters also feature a synchronous rectifier circuit that ensures high efficiency. Features and Benefits:. SUCS3, SUCS6 and SUCS10 models feature a built-in remote ON/OFF. Built-in overcurrent protection circuits. Aluminium and tantalum capacitors are not built in, ensuring high reliability. Cooled by convection/forced air