ME40A1803B01 is an 18V, 2.22A medical-grade AC-DC external power supply delivering 40W continuous output power in a Class II wall-plug, in-line configuration. The unit features 2 MOPP input-to-output isolation and meets EN/IEC/UL60601-1, 3rd edition safety standards with compliance to UL/EN/IEC60601-1-2, 4th edition for EMC. It operates from a universal AC input range of 100-240Vac (±10%, 47-63Hz) with output ripple and noise of 180mV peak-to-peak, ±1% line regulation, and overvoltage protection in the 120-150% trip range. The power supply includes comprehensive protection features including overtemperature shutdown with auto-recovery, hiccup-mode overload and short-circuit protection, and meets DoE Efficiency Level VI requirements with typical efficiency exceeding 87%. With an MTBF greater than 1,000,000 hours, E-cap life exceeding 8 years, and a 3-year warranty, this supply is ideal for medical device applications requiring reliable, regulated power with stringent safety and EMC compliance.