I have to solder leads on to pzt and I'm finding that the pzt heats up very quickly and then depolarises and essentially dies.
Three things,
First, is it worth getting solder that contains lead? I think solder that contains lead has a melting temperature of 180 degrees C and the lead free variety a minimum of 220 degrees C. I'm also vaguely aware there may be 'special' solders which have lower temperatures, what would they be?
Second, I have no idea at what temperature my soldering irons work, the first is rated at 20W the second 30W. Neither iron has a temperature control, so should I make my own or buy another? A dimmer switch from a diy store would be ok wouldn't it, what would you suggest?
Third, the soldering technique is important of course, the longer I leave the iron on the pzt the quicker it will heat up, is there anything you could recommend? (I've been soldering for just a few months so what is obvious to you may not be to me!)
Thanks for your suggestions.