There are some diodes like that, thin end plates.
Hard potting compounds sometimes expand as they cure, and cure non-uniformly. Imagine potting getting under such a melf and fracturing the skinny pin plating.
<snip>
"Doctor, Doctor, it hurts when I go like this!" "So don't go like that." ;)
I don't recall seeing compounds that don't shrink at least a little. Having one expand might be pretty ugly. OTOH hard potting compounds can do things like crushing trimpots and electrolytics, so IIRC the wisdom is to pot the component side in a thin layer of soft, noncorrosive RTV before putting the epoxy on it.
I've sometimes used conformal coatings, but never potting.
Cheers
Phil Hobbs
It's horrible, but necessary in high shock/vibration equipment. We use RTV, as far as I know everyone does for high temperature high shock.
[Actually, it's easier to clean a MELF populated board properly too, though that's a very marginal advantage as there will always be lots of 'ordinary' SM parts too.]
Do design with melfs?
Melfs might be better for high voltage or pA circuits, because they probably clean better.
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