The general consensus that I am hearing these days is that Bi in the
1-4% range is acceptable. Otherwise it could be a problem.
We use an NEC part as well (single sourced), and have already had to
deal with confirming this.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Bob Barr
Sent: 1-Nov-05 3:33 PM
To: [log in to unmask]
Subject: [TN] SnBi Lead Plating
We received a last time buy notice from a distributor for a NEC part.
The part is going to a RoHS compliant finish. The information we
received seems to indicate the lead finish will be SnBi. With the
transition from Pb to Pb-free still happening, it seems like a problem
to have Bi on a component lead. Everything I have read says Bi cannot be
mixed with Pb because it forms a low temperature melting alloy. Has
anybody heard of Bi being used in a component lead finish? I'm hoping
this may just be a mis- communication.
Thanks.
Bob
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