November 3, 2026

A comprehensive 14-minute beginner-friendly guide covering essential concepts, practical considerations, and commonly overlooked details. The article is still undergoing reviewer credential verification and technical sign-off, and may be updated once those checks are complete.

Switching a wave solder pot from Sn63/Pb37 to SAC305 while keeping every setting the same is a recipe for cold joints, poor hole fill, and heavy dross. This guide explains why the 34°C higher liquidus shrinks your working window, then delivers manufacturer-published starting ranges, a four-zone tuning workflow, and a defect-to-parameter troubleshooting map for high-volume lead-free production.