Dear Mark,
Usually people switch to Sn 97% Cu 3% for lead free application that
operate in high temp environment.  I have supplied to various radiator
and transformer companies that require high temp lead free solder. I
hope you can try this lead free composition.

Danny Natalegawa
PT Ropicon Victorindo Sejati
Jl Kayu Besar 8 Block D3 No 6
Jakarta Barat - Indonesia
(6221) 5560752 (Telp)
(6221) 5558907 (Fax)


Mark Mayer wrote:

>Anyone have experience with replacing high lead content solder with lead-free?  We use a Sn30/Pb70 alloy (melts at 245C)for a part that is overmolded with polyurethane.  We need the high melt temperature because the injection temperature of the polyurethane is 232C.  Most of the lead-free alloys I've seen melt between 217C and 227C which may be a problem for us in the molding process.
>
>Mark Mayer, PE
>Senior RF Engineer
>Centurion Wireless Technologies
>3425 N. 44th St.
>Lincoln NE  68504
>(402) 325-3262 (direct)
>(402) 325-3200 (main)
>www.centurion.com
>
>
>-----Original Message-----
>From: Hilty, Robert D [mailto:[log in to unmask]]
>Sent: Thursday, August 26, 2004 6:43 AM
>To: [log in to unmask]
>Subject: [LF] High Lead Solders with SAC
>
>
>Is anyone aware of any reliability studies performed on high melt
>temperature high lead content solders (85-90%Pb) in conjunction with
>tin-silver-copper coatings or PCB finishes?  I suspect that the tin rich
>coating will decrease the solidus and liquidus temps of the resulting solder
>volume, but I don't know the reliability effect of that reduction or if
>there are confounding issues with silver or copper contamination.
>
>Cheers,
>
>Bob Hilty
>Tyco Electronics
>
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To unsubscribe, send a message to [log in to unmask] with following text in
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To temporarily stop/(start) delivery of Leadree for vacation breaks send: SET Leadfree NOMAIL/(MAIL)
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