K/mW

kelvin per milliwatt

Thermal resistanceexact by definition

The kelvin per milliwatt is 1000 K/W. Cryogenic and single-device thermal paths need it: a weak thermal link designed to isolate a detector might be 10 K/mW, meaning a microwatt of stray power costs 10 mK of temperature.

1 K/mW 1,000 K/W