I have some tantalum caps that the leads are so discolored (a brown to purple tint to them) that the pick & place vision system is rejecting all of them.  these are supposed to be 100% Sn plated, are MSL 3 rated, and these are new parts straight out of the manufacturer's packaging with no signs of breach.  The leads also will wet out using solder paste with OA flux.

If I can get the machine to place these what reliability issues could we be facing?

I have a picture of several parts that I'll ask Steve to post.

David Bealer  |  SMT Department Manager
Phone: (217) 442-0611 ext. 6022  |  Fax: (217) 477-7134

Watchfire Signs by Time-O-Matic Inc.
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www.watchfiresigns.com<http://www.watchfiresigns.com/>

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