How to choose a soldering tip?

When facing soldering problems, many technicians try to raise the temperature. Usually the problem is not the temperature, though, but the wrongly chosen soldering tip.

Why is tip choice so important?

The tip transfers heat to the joint. A tip that is too small does not deliver enough heat; one that is too large endangers neighbouring components.

Basic rule

Choose the largest tip that still fits the joint – large tips transfer heat more efficiently at a lower temperature.

Most common tip types

Chisel tip

The most versatile shape, ideal for THT and larger pads.

Conical tip

For fine, precise work on small points.

Micro tip

For very fine SMD components and the tightest spots.

Knife tip

For drag soldering and correcting bridges on SMD ICs.

Hoof tip

With a solder reservoir, ideal for drag soldering whole rows.

How to choose by application?

Small SMD → micro/conical, THT → chisel, ICs with many pins → knife/hoof. More on SMD soldering and THT soldering.

How does the tip affect temperature?

A suitable tip allows a lower set temperature – which protects both the tip and the component.

Tip material

A copper core with an iron coating; the coating must not be damaged or sanded off.

Common mistakes

A tip that is too small, a temperature that is too high or a damaged coating. More in the most common soldering mistakes.

How to extend lifespan?

Correct temperature, tinning and cleaning – see extending the life of soldering tips.

Conclusion

The right tip solves most soldering problems. Browse tips and stations or find more guides in the ESD Guide.