ME20A4803F01 is a 20W single-output external AC-DC power supply designed for medical applications and approved to EN/IEC/UL60601-1, 3rd edition with 2 MOPP isolation levels. The unit delivers 48.0V output at 0.42A maximum current with 480mV peak-to-peak ripple and noise, ±1% line regulation, and ±5% load regulation. It operates from a universal AC input range of 90-264Vac at 47-63Hz with greater than 87% typical efficiency and meets DoE Efficiency Level VI requirements. The power supply features comprehensive protection including overload, short-circuit, and overvoltage protection in hiccup mode, with an operating temperature range of -20°C to +70°C and an MTBF exceeding 1,000,000 hours. This medical-grade supply is ideal for portable medical devices, diagnostic equipment, and other healthcare applications requiring reliable, regulated power with stringent safety and EMC compliance.