Re: [TCML] pulse cap specs

[Mddeming@xxxxxxx]

Hi Bart,
 
    The spec sheet Douglas posted shows 500 PPS  rating for this particular 
cap. I would be concerned about the 50% max  voltage reversal and the 15% rated 
reversal. This could lead to early  expiration. We also don't know what 
service it has seen for the last 9  years.
 

Matt D.
 
In a message dated 5/21/08 10:47:40 P.M. Eastern Daylight Time,  
bartb@xxxxxxxxxxxxxxxx writes:

Hope you  got my off-list message prior to buying these eBay Maxwells?

The 37667  Maxwell is a known BAD Maxwell at TC duty due to 1 pulse per 
second  rating. No good for our coils. Many have tried and died.

As far as  series/parallel. Caps in parallel add C and their voltage 
ratings remain  the same for each cap. If you series say two caps, their 
voltage rating is  the sum of both and their capacitance divides.

Example:

2 caps  (10kV, 20nF) in parallel = 10kV at 40nF.
2 caps (10kV, 20nF) in series =  20kV at 10nF.

Take care,
Bart







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