Hi Technetters,

We're having problem with some multilayer ceramic capacitors (SMT), they
crack.  We have a 
high level of rejects from the field and we're thinking of replacing them.
However, the 
best that the design team came up with so far is to use regular ceramic
capacitor (TH)  
(... please don't ask why they don't chance supplier... I already did and
well, forget it!)

I'm not too confortable with that, but on the other hand, a design change on
the board
would be very costly and we want to avoid that.

Did anyone ever changed a SMT part for a TH part?  What problems should we
expect
if we decide to go that way?  Of course assuming that the leads would be
bent properly, the 
cap would be bonded to the board, every applying rule for soldering would be
respected and
Murphy won't show its ugly face... then again we all know what appends when
we assume...

I'd prefer to go another way but my way will cost a lot of money and I'm
told that we have to
keep it to a minimum.  

Any thoughts?

Jean-François Bissonnette
Vérificateur, Contrôle de la Qualité
Électronique



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