Features and Applications of Lead-Free Solder Bar

Going lead-free may be the best in certain applications where safety and reliability are prioritized, and when the assembly process can be compatible with it. The lead-free solder bar is one of the most flexible products, particularly if it is developed and formulated by an established and reputable company that provides soldering solutions. This way, you can be confident in using technologically advanced solder products that offer high throughput applications and high reliability. Here are some of the important things to learn about lead-free solder bars:

• The composition – Leading lead-free solder bar can be made of Sn95.5Ag4Cu0.5 or Sn96.5Ag3Cu0.5, with replenishment alloys being Sn96.5Ag3.5Cu0, Sn96Ag4Cu, and Sn97Ag3Cu0, all of which are lead-free alloys that are safe replacements for the Sn63 alloy. Replenishment alloys stabilize on the reduction of copper content during wave soldering, depending on the conditions of the process.
  
  
• It removes impurities – The alloying process in high-quality lead-free solder bars eliminate oxides and other impurities that can affect the quality of the joints. Alloy conditioning helps reduce dross generation, too.
  
  
• Increase yield – A good lead-free solder bar ensures the best in class yield that may surpass the quality of performance of Sn/Cu-based materials. Faster wetting helps speed up the manufacturing process and solderability for higher throughput and increased productivity. Excellent drainage minimizes the chances of bridging, unlike when you use certain types of Sn/Cu alloys. This way, it delivers dependable performance across various flux technologies.
  
  
• Helpful to electronic assemblers going lead-free – Lead-free solder bar works with lead-free surface mount and wave soldering applications.
  
  
• Recommended temperatures – You need to make sure that the solder pot temperature is within the range of 491 to 509° Fahrenheit (255° to 265° Celsius). The manufacturer should be able to provide a guide to help you select the right solder bar for your application.