ME40A1203N01 is a 40W single-output external AC-DC power supply designed for medical device applications. It delivers 12.0V at 3.40A maximum output current with 120mV peak-to-peak ripple and noise, meeting strict medical safety standards including EN/IEC/UL60601-1 3rd edition and UL/EN/IEC60601-1-2 4th edition for EMC. The unit features 2 MOPP input-to-output isolation, universal AC input range of 90-264Vac, and operates over -20°C to +70°C ambient temperature with efficiency exceeding 87%. It includes Class II desktop configuration with IEC60320 C8 input connector and 2.5 x 5.5 x 9.5mm straight barrel output connector (center positive), along with comprehensive protection features including overvoltage, overload, and overtemperature protection in hiccup mode with auto-recovery. The power supply is rated for over 1,000,000 hours MTBF and provides greater than 8 years of electrolytic capacitor life, making it ideal for continuous-duty medical equipment requiring high reliability and regulatory compliance.