Grumpy_Mike:
Well I only get 182oC above ambient.8 * 8 * 0.046 = 2.9W so 2.9 * 62 = 182oC
But yes in general you should not run the junction much above 120oC for a decent life. This ofcourse assumes no heat sink.
Excellent.
You're right, I just doubled the R for 5V instead of actually looking at the table, well... One more thing that I've learned (hopefully.)