Many thanks Matthias,Hugh. The case doesn’t seem to have any direct method of fastening to a heatsink but something can be arranged I’m sure. The manufacturer’s documents don’t suggest anything. They do say that the base temperature can be up to 85 degrees C which seems awfully hot.
I haven’t measured the temperature other than a finger test that indicates that more than 5 secs is uncomfortably hot. At that point I switched it off. Best regards Richard On Tue, 1 Sep 2020 at 19:02, Hugh Blemings <h...@blemings.org> wrote: > > > > > > > > > > > Hiya, > > > I'd wondered this also - my (limited) experience of Rbs are the > > LPROs and they definitely need a heatsink (I have a nice story to > > share about getting some made one day which I must write up, but I > > digress) > > > Curious, I dug around a bit and only data I can find is a two > > pager on the manufacturer website - > > https://www.quartzlock.com/product/Rubidium/rubidium-oscillators/E10-MRX > > > The packaging itself doesn't appear to be designed with > > heatsinking in mind, but perhaps there is an implicit expectation > > of convection cooling at least to keep it manageable ? > > > Any idea what case temperature you're seeing @Richard ? > > > > > Cheers, > > > Hugh > > > > > > > > On 1/9/20 5:01 pm, Matthias Welwarsky > > wrote: > > > > > > > On Dienstag, 1. September 2020 07:15:34 CEST Richard Katsch wrote: > > > > > > Hello All, > > I have acquired a Quartzlock E10-MRX Rb 10 MHz standard. It appears to lock > > and produce a nice sine wave that stays in phase with my Trimble Tbolt for > > a time which exceeds my attention span!!! > > It does however get hot in operation. As this is my first experience with a > > Rb standard I don’t know whether this is normal or indicates that I need a > > heat sink. > > Any comments would be appreciated. > > > > > > > They're supposed to run hot, but excess temperature will degrade the stability > > and shorten the lifetime of the electronics. It's hard to recommend what > > heatsink they require if you have no documentation. Typically you'll need one. > > My LPRO-101 need a heatsink with < 2K/W of thermal resistance to keep the > > temperature in check. > > > > BR, > > Matthias > > > > > > > > Regards > > Richard Katsch > > VK2EIK > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to > > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow > > the instructions there. > > > > > > > > > > > > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > > > > > > > > _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.