[TCML] pulse cap specs

Jim Lux jimlux at earthlink.net
Thu May 22 07:46:36 MDT 2008


Yurtle Turtle wrote:
> These caps hold up just fine in Tesla duty. I've got ten and have
> never had a problem, even when pushing them over 400 bps. The spec
> sheet says they're good to 500 pps. The only problem is that you
> don't know how much abuse they'veseen before you buy them.
> 
Keep in mind that pulses/sec is not breaks/sec, at least as defined by 
the cap mfr.  A TC typically runs at almost 90% reversal, which is a lot 
harder on the cap internals than the 20% or 50% often spec'd in the 
capacitor data sheet in connection with the life spec.

OTOH, reducing the voltage across the cap by a factor of two has a HUGE 
effect on life.


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