I'm sorry to bust your bubble, but this is really more a matter of
technique, albeit 2 seconds should be enough time for any small solder
joint like these.
The secret, of course, is the same as the route to Carnegie Hall:
Practice, practice, practice.
Cheers!
Rich
Rich, I totally agree with your conclusions re practice...... However,
the OP said he was a "beginner' and thus is not likely to have yet
learned the hard way how to achieve perfectly soldered joints in under
2 seconds. Even then, the wattage and/or the type of soldering iron he
has will be relevant and we don't know what he has available. For
example, if he uses a 60W non temp controlled iron the plastic will
allow even less than 2 seconds of heating before the pin sags.
During my professional tech days we always used high quality switches
by C&K (circa 1970 - 80's) and the contacts on these would allow quite
long periods of heating without any damage or plastic melting. They
could be soldered and unsoldered many times by a technician properly
trained in soldering techniques. When I had to buy some small switches
a few years back - they looked to be good quality, and appeared
identical in style to the old C&K's, I discovered very quickly that
even with my experience it was easy to get the pins to sag with only
quite short periods of heat application. They were certainly designed
for one attempt only and it would be impossible to unsolder and re-use
these switches.
That is what I was referring to with the RS relay and what the OP had
to be aware of.