[time-nuts] PRS10 C900 replacement

davidh dhooke at gmail.com
Wed Jan 20 00:15:57 EST 2016



Folks,

It's a 2.2uF cap, with a 0.125" lead spacing, and I'm looking for 125dC 
temp rating. I wondered if there were other characteristics such as 
ESR/ESL I need to keep in mind.


d.


On 20 Jan 2016 14:32, Dan Harboe Burer wrote:
> Hi,
>
> You need one more piece of info: its value! E.g. 1uf, 0.35uF, 2.2uF,
> 10uF? That is quite important :)
>
> Just don't use too old tantalum caps - they tend to absorb moisture over
> time (when stored incorrectly) - and self destruct as you have
> experienced..
> I just experienced the same while renovating a Tek 475 'scope.
>
> Regards
> Dan (A newbie from Denmark)
>
> -----Oprindelig meddelelse----- From: davidh
> Sent: Tuesday, January 19, 2016 11:21 PM
> To: time-nuts-JSkTLETqlTM at public.gmane.org
> Subject: [time-nuts] PRS10 C900 replacement
>
> Hi All,
>
> While still appearing to function normally, my PRS10 started to smell:
> C900 in the lamp assembly has self destructed.
>
> The SRS parts manual merely says "Capacitor, Tantalum, 35V, 20%, Rad",
> so I'd appreciate any advice on what additional parameters I should be
> looking at in selecting a replacement.
>
> Thanks,
>
> david
>
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