18 Jun
2009
18 Jun
'09
4:11 p.m.
Gordon JC Pearce wrote:
On Thu, 2009-06-18 at 16:46 -0600, bfranchuk at
jetnet.ab.ca wrote:
> I am looking at the new resistors ... all film resistors to blow at .1% greater
> wattage than specified
> @ 70C.
[citation needed] --> ME
Fact #1 power rating you start de-rating @ 70C.
Fact #2 They have a very high thermal resistance. I can't find the data
but something like 150K/watt if I am guessing right.
Fact#1+Fact#2 == *poof*
Gordon