TE40A1802B01 is a 40W single-output AC-DC external power supply designed for test, measurement, and industrial applications. It features an 18.0V output at 2.20A with universal AC input of 90-264Vac, meeting DoE Efficiency Level VI requirements and delivering less than 0.1W no-load input power. The unit provides ±1% line regulation and ±5% load regulation with 180mV pk-pk ripple and noise, along with comprehensive protection including overvoltage, overload, and short-circuit protection in hiccup mode. It is approved to EN/IEC/UL60950-1 2nd Edition Amendment 2, meets Class B conducted and radiated emissions standards with 6dB margin, and offers an MTBF exceeding 250,000 hours with greater than 7-year E-cap life. This power supply is ideal for applications requiring reliable, regulated DC power in demanding industrial and test environments where efficiency and compliance are critical.