View Single Post
  #16   Report Post  
Posted to
Mike Tomlinson Mike Tomlinson is offline
external usenet poster
Posts: 4,069
Default Why do some manufacturers wrap the electrolytic capacitor that gets the hottest in a switching power supply in shrink wrap?

En el artículo , chuck

To clarify, this isn't the standard cap wrapping from the factory.
This is a thick piece of shrink tubing that is put over the
capacitor's normal wrapping and then shunk tightly around the cap like
a blanket. Chuck

Maybe to prevent reading off the value for replacement? Built-in
obsolescence, in the same way the some makers grind the identifying
marks off the top of ICs?

You say in a later post that Extron don't support outside repair, which
lends weight to that theory.