There has been a similar thread on smart-e-link in the last week.
The general consensus was that AgPd terminations are not compatible with
SAC.
Rex


Rex Waygood
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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Grant Emandien
Sent: 02 July 2008 10:20
To: [log in to unmask]
Subject: [TN] Silver-Palladium termination SMT solder problems

Hi all,
 
We are experiencing poor solderability with AgPd-terminations on MOVs
exposed to a lead-free reflow profile using a SAC alloy on an
ENIG-finished PCB. Though we have run this board only once previously
with the same part finish using a lead-rich alloy, we had similar
effects but not to the extent we are now experiencing.
 
Can anyone provide some insight into this/
 
Regards
Grant
 

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