TE20A4803N01 is a high-performance external AC-DC power supply delivering 20W of output power at 48.0V with 0.42A output current. It features a universal input range of 90-264Vac and meets DoE Efficiency Level VI requirements with no-load input power less than 0.1W. The unit provides ±1% line regulation and ±5% load regulation with 480mV pk-pk ripple and noise. It is approved to EN/IEC/UL60950-1 2nd Edition and meets EN55022/CISPR22 Class B conducted and radiated emissions with 6dB margin. With an IP22 rated enclosure, MTBF exceeding 1,000,000 hours, and E-cap life greater than 10 years, this power supply is ideal for test & measurement and industrial applications requiring reliable, efficient power conversion.