the modern era of nanotechnology and ULSI we electro-technoz think that the automated world leaves no reason for us to solder, but the fact is electronics is not in your blood without soldering.   Importance: It is done by students to a researcher and it is the most fundamental skill needed to assemble any electronics project. It is basically: “Joining of metals by a fusion of alloys which have relatively low melting points” Selecting your soldering iron:

  • Voltage: Generally uses mains (240 V) and the iron work on (12 V to 24 V).
  • Wattage: More wattage doesn’t mean more heat but it means that for soldering larger joints, the iron won’t cool down quickly.
  • Temperature control: Not a reason to worry for us (students) but these are available for application specific use.
  • Bits: They are available in various shapes and diameters.
  • Spare parts: In case you blow up a part then these tiny spares will help you out.
  • The skill: The spoon for success in achieving a small and shiny joint is foursome:

    • Cleanliness
    • Temperature
    • Time
    • Adequate soldering coverage


    • Dirt and grease are our enemies so clean up the parts thoroughly.
    • Secure the work firmly.
    • For a new tip being used for the first time tin the iron tip with little solder.
    • Clean the tip on damp sponge and then heat the parts of the joints.
    • Then apply only sufficient solder and keep the iron steady for a second or two.
    • Place the iron safely to the stand.
    • Don’t MOVE parts until cooled.

    The other types of solder used are Gas soldering iron, Cold heat classic iron and Solder gun. WORD OF CAUTION: If you are unlucky enough to get a burn then immediately seek up medical advice! By, Viral Soni

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