Convert Minute-degree Fahrenheit per BTU to Degree Celsius per milliwatt
Convert Minute-degree Fahrenheit per BTU (min·°F/BTU) to Degree Celsius per milliwatt (°C/mW) instantly and accurately.
Conversion Formula
°C/mW = min·°F/BTU × 3.159390401e-5
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.
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.
Quick Reference Table
| Minute-degree Fahrenheit per BTU (min·°F/BTU) | Degree Celsius per milliwatt (°C/mW) |
|---|---|
| 1 min·°F/BTU | 3.159 × 10-5 °C/mW |
| 2 min·°F/BTU | 6.319 × 10-5 °C/mW |
| 5 min·°F/BTU | 0.00015797 °C/mW |
| 10 min·°F/BTU | 0.000315939 °C/mW |
| 25 min·°F/BTU | 0.000789848 °C/mW |
| 50 min·°F/BTU | 0.0015797 °C/mW |
| 100 min·°F/BTU | 0.00315939 °C/mW |