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Laying down and holding large components

Dave

#24569

Laying down and holding large components | 22 May, 2003

If you have a component with a height issue and want to lay is down (capacitor in this case), what are the best methods to consider? RTV, epoxy or something else?

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MikeF

#24570

Laying down and holding large components | 22 May, 2003

We need more information to give you a good answer. Is this a leaded part (axial or radial) or smt? How big is the part, how much weight per lead? What is the end use environment, will it see any vibration? or temperature extremes?

Some general comments: If you use RTV it must be the electronic grade, the regular RTV will cause tarnish and corrosion problems if it is in contact with component pads. A 2 part epoxy would be better if the product is going to be getting bounced around during use. There is no one answer fits all.

Mike F

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RDR

#24574

Laying down and holding large components | 22 May, 2003

I would assume we are talking about a radial leaded electrolytic cap? We use Electronic grade RTV (Dow corning 3145). It sticks good and can be removed if necessary. It is also pliable so you don't have to worry about CTE or other stresses that may be involved in end use. the down side is the set time they need to sit for a couple of hours.

Russ

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