Hi In all the years I’ve been doing this, there have been a *lot* of posts and observations about that fuse failing. The number of reports / observations of that fuse doing what it is supposed to do (protect a failed controller) have been virtually zero. By far the easiest “replacement” is a piece of wire. The risk associated with this fix is near zero. Is it zero - no, but we spend far more money on these fuses than we would on a handful of replacement OCXO’s.
Bob On Sep 3, 2014, at 5:29 AM, David McGaw <[email protected]> wrote: > Let's try this again: > > They are HP/Agilent/Keysight PN 10811-80008. I was actually able to buy a > couple from Agilent a few years ago. They are listed as obsolete now. A > Panasonic EYP2BH115 should fit. Newark has them. > > David > > > On 9/2/14 8:05 PM, Dave Daniel wrote: >> I believe a thermal cut-out is a device which interrupts the circuit when a >> prescribed temperature is reached or exceeded (in some cases by heating >> from an increase in current through a conductor), but which re-connects the >> circuit once the temperature has dropped below the cut-out temperature >> (possibly with some hysteresis built in). A fuse, on the other hand, >> interrupts the circuit after a certain current threshold is exceeded (and, >> of course there is an increase in temperature related to the increase in >> current) but which is destroyed in the process out interrupting the circuit. >> >> DaveD >> >> On 9/2/2014 5:10 PM, Dan Rae wrote: >>> On 9/2/2014 12:23 PM, Dan Rae wrote: >>>> I'm sure this has been discussed to death before, but does anyone know of >>>> a source of thermal fuses small enough to fit in the -hp- 10811? I have >>>> found plenty of larger ones, none of which will fit and would rather not >>>> just link it out. >>>> >>>> Dan >>>> _______________________________________________ >>> Thanks for all the tips and advice. >>> >>> The Chinese eBay ones (15A) I have bought before and they are physically >>> too big to fit. >>> >>> Buerklin is a German distributor and will want 28 Euros to ship to the US. >>> >>> I know I can link it out, but don't like doing that in something that is >>> powered on permanently. >>> >>> I have found some Panasonic ones that Digikey distribute in the US, but >>> frustratingly the data sheets have no dimensions given. I have ordered some >>> 1A and 2A ones to try, and will report further. >>> >>> I suspect that the originals would have been around 115C. And for >>> searching they seem to be called Thermal Cut Outs (TCO), not fuses. >>> >>> Dan >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
