PW173KB0503F01 is a 5V, 20W ITE switch-mode power supply designed for desktop applications with universal AC input. It features a regulated 5V output with a maximum current of 4.00A and low ripple of 50mV peak-to-peak, utilizing a fixed frequency flyback topology. The unit accepts 100-240VAC input at 47-63Hz, operates from 0°C to 40°C without derating, and includes built-in overvoltage, overload, and short circuit protection in hiccup mode. Housed in an impact-resistant black 94V0 polycarbonate enclosure with IEC320 C14 grounded input receptacle and 2.5mm barrel output connector, this power supply meets EN/IEC/CSA/UL60950-1 safety standards and Energy Star Level IV requirements. It is ideal for ITE equipment requiring reliable, efficient power with low standby consumption below 0.5W.