Convert Degree Celsius per milliwatt to Minute-degree Fahrenheit per BTU

Convert Degree Celsius per milliwatt (°C/mW) to Minute-degree Fahrenheit per BTU (min·°F/BTU) instantly and accurately.

Degree Celsius per milliwatt (°C/mW)
Minute-degree Fahrenheit per BTU (min·°F/BTU)

Conversion Formula

min·°F/BTU = °C/mW × 31651.67558

About Degree Celsius per milliwatt

The degree Celsius per milliwatt (°C/mW) equals exactly 1000 K/W since 1 mW = 10⁻³ W and 1 °C = 1 K. Widely used in low-power semiconductor datasheets for characterising junction-to-ambient resistance: small-signal transistors, LEDs, photodiodes, and SMD resistors typically show RθJA of 50-500 °C/mW. A device at 200 °C/mW dissipating 5 mW rises 1 °C. 1 °C/mW = 1000 K/W = 1 kK/W.

About Minute-degree Fahrenheit per BTU

The minute-degree Fahrenheit per BTU (min·°F/BTU) equals (5/9 × 60)/1055.05585262 K/W ≈ 0.03159 K/W. Used in US refrigeration and air-conditioning engineering where capacity is expressed in BTU/min - 1 ton of refrigeration equals 200 BTU/min. Thermal resistance of evaporator and condenser circuits is conveniently quoted in this unit. 1 min·°F/BTU ≈ 0.03159 K/W = 60 s·°F/BTU.

Quick Reference Table

Degree Celsius per milliwatt (°C/mW)Minute-degree Fahrenheit per BTU (min·°F/BTU)
1 °C/mW31651.7 min·°F/BTU
2 °C/mW63303.4 min·°F/BTU
5 °C/mW158258 min·°F/BTU
10 °C/mW316517 min·°F/BTU
25 °C/mW791292 min·°F/BTU
50 °C/mW1582580 min·°F/BTU
100 °C/mW3165170 min·°F/BTU

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