Gil,
I don't really see an issue with soldering that part. It is basically a SOT89 package with compliant leads and a large bottom pad. There would be plenty of solder volume to absorb the small amount of silver, and the part is not going to be affected by huge delta Ts as it is quite small. Nothing jumps out at me that indicates a potential issue. We solder lots of those and I have not seen any problems. You may see some voids in an X-ray because of the large flat pad, but they do not typically pose any reliability issue. Is there anything that is making you hesitate?
Odin
-----Original Message-----
From: Gil Zilber MTH [mailto:[log in to unmask]]
Sent: Wednesday, March 06, 2019 1:50 AM
To: Stadem, Richard D; TechNet E-Mail Forum
Subject: RE: [External] [TN] SnAg component finish with SnPb solder past
Hi,
It is a monolithic amplifier (GVA-84+ from mini-circuits) case style: DF782
Thanks,
Gil
-----Original Message-----
From: Stadem, Richard D [mailto:[log in to unmask]]
Sent: Tuesday, March 5, 2019 8:39 PM
To: TechNet E-Mail Forum <[log in to unmask]>; Gil Zilber MTH <[log in to unmask]>
Subject: RE: [External] [TN] SnAg component finish with SnPb solder past
What type of component is it?
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Gil Zilber MTH
Sent: Tuesday, March 05, 2019 11:40 AM
To: [log in to unmask]
Subject: Re: [TN] [External] [TN] SnAg component finish with SnPb solder past
Hi dave,
It is 1-3% silver.
Thanks.
Gil
-------- הודעה מקורית --------
מאת: David Hillman <[log in to unmask]>
תאריך: 4.3.2019 23:12 (GMT+02:00)
אל: TechNet E-Mail Forum <[log in to unmask]>, Gil Zilber MTH <[log in to unmask]>
נושא: Re: [External] [TN] SnAg component finish with SnPb solder past
Hi Gil - what is the composition of the SnAg plating?
Dave Hillman
Collins Aerospace
[log in to unmask]<mailto:[log in to unmask]>
On Mon, Mar 4, 2019 at 9:23 AM Gil Zilber MTH <[log in to unmask]<mailto:[log in to unmask]>> wrote:
Hello,
Does anyone know if there is an issue of soldering components that have SnAg finish with SnPb solder paste?
Thanks,
Gil Zilber
Process Engineer at IAI
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