How much space? Mine were on the underside of a standard perfboard. I
inspected the caps and they seem fine. There was some brown residue on
them from the blown resistors, but they did not appear to be damaged.
Replacing the resistors fixed the problem. Watching them blow, it did
not appear to arc to the cap body in my case though.
Travis
> Original poster: Terry Fritz <twftesla-at-uswest-dot-net>
>
> Hi All,
>
> There have been a few cases where bleeder resistors have been
placed
> directly against the bodies of MMC caps and have managed to arc
through the
> thin capacitor casing. The outer foil layer of the caps can easily
be at
> the opposite potential of the bleeder resistor and there can easily
be
> corona or electrical breakdown.
>
> One should space the resistors away from the caps or put some
additional
> insulation between the resistors and the cap body. This problem
seems to
> especially afflict the tubular style wrapped resistors.
>
> Cheers,
>
> Terry
>
>
>