Hi Bob,
I've reflowed a lot of air and core wound inductors that are made with
magnet wire that has polyimide (type ML) insulation.  This is straight from
the spec sheet "ML is a film coated magnet wire made with polyimide resin.
It is a Class 220°C thermal life insulation with exceptional resistance to
chemical solvents and burnout.  It will operate at temperatures up to 240°C.
The outstanding cut-thru of over 400°C and its ability to withstand
excessiver overloads extends the use of magnet wire in extreme conditions.
ML is unaffected by prolonged exposure to varnish solvents and is compatible
with virtually all systems." 
There are multiple mfr's but MWS Wire Industries (www.mwswire.com) is one
that I use the most.

Steve Sauer
Mfg Engineer
Xetron Corporation

-----Original Message-----
We have a application where it would be very nice to solder two small wires
to a PWB assembly while we are reflow soldering the other SMT parts to the
board. So far we have not found a wire type that a manufacturer will ensure
will survive the reflow temperatures. Solid wire with insulation is needed
in the 22-24 awg. size. Does anybody have experience soldering wires to
assemblies in reflow processes?

---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------