All readers,

Soldering connectors without melting the plastic is more a matter of technique than one of iron wattage or temperature.

Of course the pieces (connector and wire) must be clean (no oxidation , rust or oily contaminant).

Pre-thin the wire. Then one of two ways (two methods).

1- Place the pre-thinned wire on top of the connector area to be soldered. Have the iron ready with a little pool of melted solder on the face of the iron tip. Put the solder (wire) in contact withthe wire and the connector. Touch the iron face in contact with the pre-thinned wire where the solder is also in contact. As soon as the solder wire melts remove the iron and wait a few seconds for the solder to freeze.

2- Same as above but touch the iron underneath the connector. Again as soon as the solder melt on top, remove the iron and wait a few seconds for the solder to freeze.

Voila, no problems.

Zor