Convert Degree Celsius per milliwatt to Hour-degree Celsius per kilocalorie
Convert Degree Celsius per milliwatt (°C/mW) to Hour-degree Celsius per kilocalorie (h·°C/kcal) instantly and accurately.
Conversion Formula
h·°C/kcal = °C/mW × 1163
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 Hour-degree Celsius per kilocalorie
The h·°C/kcal equals 3600/4186.8 K/W ≈ 0.8598 K/W. Used in pre-SI European engineering literature (French, German, Italian) for heat transfer system calculations. A boiler with 1 h·°C/kcal resistance passes 1 kcal/h per °C temperature difference. Superseded by K/W and h·°C/W in modern standards. 1 h·°C/kcal ≈ 0.8598 K/W.
Quick Reference Table
| Degree Celsius per milliwatt (°C/mW) | Hour-degree Celsius per kilocalorie (h·°C/kcal) |
|---|---|
| 1 °C/mW | 1163 h·°C/kcal |
| 2 °C/mW | 2326 h·°C/kcal |
| 5 °C/mW | 5815 h·°C/kcal |
| 10 °C/mW | 11630 h·°C/kcal |
| 25 °C/mW | 29075 h·°C/kcal |
| 50 °C/mW | 58150 h·°C/kcal |
| 100 °C/mW | 116300 h·°C/kcal |