Mean Well MDD03F-12 Medical Grade DC/DC Converter 3W - 9-36V input, 12 and -12V output

Yes, this is a medical grade DC/DC converter with constant-voltage 12 and -12V output. Its 3W power rating and 0.12A output current fit low-power medical or healthcare electronics that need an auxiliary +/-12V rail.

It is suited to systems that may vary across the converter's 9-36VAC input range but still need a regulated +/-12V output. With 3W available, it is better matched to low-power analog, sensing, and interface functions than to larger control loads.

That is a typical fit when the circuit requires constant-voltage 12 and -12V rails and stays within 0.12A output current and 3W total power. The compact 31.8 x 20.3 x 12.2 mm form factor also supports dense instrumentation designs.

Its rated operating temperature is -40°C to +90°C, which supports use in equipment exposed to broad temperature swings. Because no IP rating is listed, environmental sealing still depends on the final enclosure rather than the converter body.

All three are 3W medical grade converters with 9-36VAC input, but the outputs differ: MDD03F-05 is 5V at 0.3A, MDD03F-12 is 12V at 0.12A, and MDD03F-15 is 15V at 0.1A. The MDD03F-12 is the middle-voltage option in that group.