RE: [DML] Auto trans governor problems

["Matthew L. Walker" <mwalker@xxxx>]

Well to be safe I will pull the caps and replace them. It's not that
expensive.

Ralf - The capsI used are 4.7uF 50v tantalum caps from nte. Suggestions?

Matthew L. Walker
VIN 1219

-----Original Message-----
From: Ralf Philipp [mailto:doc.brown@xxxx]
Sent: Wednesday, February 07, 2001 11:47 AM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: Re: [DML] Auto trans governor problems


>
> Possible you installed the caps backwards but the Tantalums would probably
> tolerate and work OK anyway, at least for awhile. Wouldn't likely be
> intermittent. The black rubber seals were the positive end.


No, no, no!!!

If you install Tantalums backwards then they will definitely go bad. They
WILL get hot, and they might even explode. The same applies to electrolytic
capacitors. If you put them in backwards and already had voltage connected:
THROW THEM AWAY.

Something else to consider: Most tantalum caps are not very surge resistant.
So if you really want to use them, take the ones which can withstand voltage
surges.

I would recommend using film capacitors (up to approx. 2.2µF) or ceramic
capacitors (up to approx. 220nF).

Ralf.
VIN10284
(electronic engineer)



Before posting messages or replies, see the posting policy rules at:
www.dmcnews.com/Admin/rules.html

To address comments privately to the moderating team, please address:
moderator@xxxx