TE40A1803F01 is a 40W single-output external AC-DC power supply designed for test and measurement and industrial applications. It delivers 18.0V at 2.20A maximum output current with 180mV peak-to-peak ripple and noise, featuring ±1% line regulation and ±5% load regulation. The unit operates from a universal AC input of 100-240Vac (±10%, 47-63Hz) and includes comprehensive protection features including overvoltage protection (120%-150% trip range), overload protection in hiccup mode, short circuit protection with auto-recovery, and overtemperature shutdown with auto-recovery. It meets DoE Efficiency Level VI requirements with less than 0.1W no-load input power, provides input-output isolation of 4000Vac, and is approved to EN/IEC/UL60950-1 2nd Edition Amendment 2. The TE40A1803F01 is ideal for powering test equipment, industrial control systems, and measurement instruments requiring reliable, regulated 18V power with excellent EMC performance and a 3-year warranty.