[time-nuts] Re: OCXO MV85A C20F-5V-SN spec or datasheet needed

[Andrew Kalman]

Interesting ... my first (and only) exposure to Morion oscillators is when
I opened up an Oriola GSG-series GNSS simulator I bought off eBay, to find
a truly elegantly designed product with gorgeous PCB layout, and with a
Morion OCXO from the MV103 series inside. Picture attached.

--Andrew

--------------------------------
Andrew E. Kalman, Ph.D.


On Sat, Jan 7, 2023 at 12:30 AM Matthias Welwarsky via time-nuts <
time-nuts at lists.febo.com> wrote:

> Hi Dave,
>
> without seeing a picture of the OCXO, just going by the part number it is
> a
> Morion MV85 series OCXO. I've attached an ordering guide I found.
>
> The ordering guide doesn't exactly match the nomenclature of the code you
> have
> posted, but:
>
> C20F hints that the operating temperature range is -20°C to +70°C with
> 2e-8
> stability (relative to the nominal frequency I guess) and +-5e-8 per year.
>
> It looks like it's a 5V part.
>
> The MV85A parts are double-oven OCXOs, you find them all over Ebay or
> Aliexpress, but most of what you get is fake parts.
>
> Hth,
> Matthias
>
> On Samstag, 7. Januar 2023 06:54:40 CET Dave via time-nuts wrote:
> > Hi, I have an HP counter timer in which the reference clock module has
> > failed 🙁
> >
> > I need to replace it but those seem to be unobtainium ... there are
> > several alternative units that would fit
> > but I worry that the PSU may not be able to handle the load.
> >
> > Can anyone give me an idea of the current needs of the above, or better
> > still provide a spec sheet ???
> >
> > Regards,
> > Dave
> >
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