Soldering heater cartridge with replaceable tips and soldering iron for use therewith

A soldering iron comprising:

• a handpiece having an electrical connector assembly therein;
• and
• a tip heater cartridge with a replaceable tip capacity, said tip heater cartridge comprising:
• an elongated cartridge body, said cartridge body having a tubular body member and electrical connectors at a first end of the tubular body member for plug-in connection with the electrical connector assembly of said handpiece;
• a soldering tip for mounting on the cartridge body;
• and
• a heater mounted within the cartridge body, said heater being electrically connected to said electrical connectors;
• wherein a tip end part is located at a second end of the cartridge body that is opposite said first end;
• wherein said heater is located within said tip end part;
• and wherein said soldering tip is replaceably mountable over said tip end part in heat exchange contact with said tip end part.