It's a very fine point.

If you trim the leads before soldering, then the trimmed end of the lead
will get coated with solder.  Since this prevents the exposure of a junction
of dissimilar metals to the atmosphere, it is less susceptible to corrosion.

> -----Original Message-----
> From: Olin Lathrop [mailto:olin_piclist@COGNIVIS.COM]
> Sent: Tuesday, October 17, 2000 7:22 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE]: Soldering - wet sponge
>
>
> > Soldering standards include  things like if you replace a
> resistor you
> trim
> > the lead to length before soldering, I have seen work
> rejected because
> > someone cleared the pads
> > inserted resistor soldered the resistor in circuit then cut
> off surplus
> lead
> > length.
>
> I'm curious.  What is the advantage to trimming the lead
> before soldering?
> I would have thought the other way around to be more reliable.
>
>
> *****************************************************************
> Olin Lathrop, embedded systems consultant in Devens Massachusetts
> (978) 772-3129, olin@cognivis.com, http://www.cognivis.com
>
> --
> http://www.piclist.com#nomail Going offline? Don't AutoReply us!
> use mailto:listserv@mitvma.mit.edu?body=SET%20PICList%20DIGEST
>
>
>
>

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
use mailto:listserv@mitvma.mit.edu?body=SET%20PICList%20DIGEST