Indium Blog

Solder Alloy Families

Have you ever had to choose something (a new computer, kitchen cabinets, eyeglasses) and had so many choices that you became overwhelmed and got analysis paralysis?

You might feel that way when looking at our Solder Alloy Directory which has over 220 alloys.  So many choices! 

So, how do you know where to start?  Your first consideration is temperature:

  • What is the service temperature of the final product?
  • What is the maximum processing temperature of any components that you are soldering?

You will want your solder to melt at least 30°C to 50°C below your maximum component processing temperature requirements.  Once you have defined your temperature range you can review the choices by alloy family:


If you would like one of these posters (8.5" x 11") send me an email at  You can also start your journey to choosing the right solder by determining  the alloys available in your temperature range by going to our web site at