The new age has ushered in new technology and materials in the electronics industry which are set to revolutionize traditional methods. Lead-free solders are a part of this revolution, and have proved to be better and more versatile than the materials used earlier for soldering. There are many specialized jobs that lead-free solders can achieve which were earlier not possible with leaded solders. If you have some specialized soldering jobs lined up, here are things to consider when choosing low temperature lead-free solders.
First off, assess the temperature you are going to be working at while soldering. If there are components and materials involved that are likely to melt or get damaged at normal soldering temperatures, it is time to go for a low temperature lead-free solder.
Secondly, think of the application of the soldering job. Certain specialized applications require low temperature solders, like thermometers used in food preparation and fire detection devices. Also, in reflow processes where temperatures are likely to harm the assembly, low temperature lead-free solder can be used in applications such as:
• Flex circuitry in cell phones, smartwatches and other smart devices
• Components that are temperature sensitive
• Step soldering process where sequential soldering is to be done without damaging the previous one
• Large area devices in order to avoid common faults like head-in-pillow and non-wet open.
If any of the above situation corresponds to your soldering job, you should buy a low temperature lead free solder.
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