Convert Degree Fahrenheit per watt to Microkelvin per watt
Convert Degree Fahrenheit per watt (°F/W) to Microkelvin per watt (μK/W) instantly and accurately.
Conversion Formula
μK/W = °F/W × 555555.5556
About Degree Fahrenheit per watt
The degree Fahrenheit per watt (°F/W) equals exactly 5/9 K/W ≈ 0.5556 K/W. It appears in US power electronics datasheets and legacy JEDEC thermal specifications where junction-to-case resistance is reported in °F/W rather than °C/W or K/W. A device rated 5 °F/W has R = 5 × 5/9 ≈ 2.78 K/W. 1 °F/W = 5/9 K/W.
About Microkelvin per watt
The microkelvin per watt (μK/W) equals exactly 10⁻⁶ K/W. Used in ultra-precision cryogenic and nanotechnology research to characterise thermal contact resistance of atomically bonded interfaces, van der Waals heterostructures, and superconducting qubit heat links at millikelvin temperatures. Also quoted for on-chip thermal connections in quantum processor prototypes. 1 μK/W = 10⁻⁶ K/W.
Quick Reference Table
| Degree Fahrenheit per watt (°F/W) | Microkelvin per watt (μK/W) |
|---|---|
| 1 °F/W | 555556 μK/W |
| 2 °F/W | 1111110 μK/W |
| 5 °F/W | 2777780 μK/W |
| 10 °F/W | 5555560 μK/W |
| 25 °F/W | 13888900 μK/W |
| 50 °F/W | 27777800 μK/W |
| 100 °F/W | 55555600 μK/W |