mW/K

milliwatt per kelvin

Thermal conductanceexact by definition

The milliwatt per kelvin is 10⁻³ W/K. It is the unit of a cryogenic thermal link: the conductance of a copper strap or a stainless steel support between stages of a cryostat is specified here, because the whole cooling budget of a dilution refrigerator is a few milliwatts.

1 mW/K 0.001 W/K