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The Mean Well USA NFM-05-3.3 is an on-board type AC/DC converter designed for medical and general electronic applications requiring low leakage current. It delivers a 3.3V output at 1.25A, providing a total rated power of 4.125W.
This converter operates with a universal AC input range of 85-264VAC and a DC input range of 120-370VDC, featuring an efficiency of 67%. Key electrical specifications include a low no-load power consumption of less than 0.5W, adjustable output voltage between 3V and 3.63V, and a ripple and noise level of 80mV. It incorporates standard protections such as short circuit, overload, over voltage, and over temperature.
Designed with a compact module package and through-hole mounting, the NFM-05-3.3 has dimensions of 58.0mm x 45.0mm x 19.1mm. It operates within a temperature range of -20°C to +70°C and meets stringent safety and EMC standards, including UL60601-1 and TUV EN60601-1, making it suitable for non-patient contact medical equipment and industrial uses.
85 to 264 VAC or 120 to 370 VDC.
Module.
-20°C to +70°C (with derating).
67%.
UL60601-1 and TUV EN60601-1.
3.3V nominal, adjustable from 3V to 3.63V.
EN55011/22 Class B, EN61000-4 series, medical level criteria A.