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Re: found - sprague red HV capacitors more details
thanks for the reference, it was helpful.
http://www.ceramite-dot-com/cap7.html has details on these caps, thanks
here is what i found. (relevant caps are 30DKT5 and 20dkd47, ratings are at
60 hz, it says "DF" 2% max -at- 1 khz")
PERFORMANCE CHARACTERISTICS:
Operating Temperature Range: -30°C to +85°C
Storage Temperature Range: -40°C to +100°C
Dielectric Strength: 150% of rated voltage, chargingcurrent limited to 50mA.
Resistance: 200,000 megohms or 1000VF minimum at 25°C.
Corona Limit: 50 picocoulombs at rated AC voltage.
Self Resonant Frequency: Ranges from 50 MHz for small diameters to 10 MHz
for large diameters.
Dissipation: Limit to 25°C rise above ambient, measured on case
"KT series ceramic material is specially designed to handle AC current, due
to low dissipation factor.
it shows a typical ap in the HV section as a focus filter
says "applicaitons where high dv/dt is present will operate at high peak
currents. capacitors shoudl be evaluated in the actual circut for dv/dt
greater than 2000v/microsec.
Cap Catalog page 32
anyway, if anyone is interested, contact me off the list, I still have a few
left
----- Original Message -----
From: "Tesla List" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, April 18, 2000 4:33 PM
Subject: Re: found - sprague red HV capacitors
> >to make some space here.
> >
> Sprague caps are now Ceramite Corp (http://www.ceramite-dot-com/) products.
> You can download the catalog as a pdf from their web site. The DK series
> caps are still available...look on page 32 of the catalog
>
>
>