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Here you can find knowledge about Sn63Pb37 Solder Paste, including but not limited to usage methods, installation techniques, troubleshooting and more. Focused on SMT soldering processes. If you can't find what you need, please contact us anytime.
Sn63Pb37 solder paste still has irreplaceable process stability in through-hole SMT production lines. Its eutectic properties bring low melting point, narrow reflow window and excellent wettability. However, limited by RoHS compliance pressure and lead-free mixed line risks, practical applications must directly address high-frequency failures such as solder joint cracking, cold solder joints, insufficient wetting, and stencil clogging, which are particularly evident in 0201 component soldering and double-sided board rework scenarios.
Published: 2026-08-27
Sn63Pb37 leaded solder paste remains irreplaceable in high-reliability fields such as automotive electronics and industrial control due to its eutectic properties and compatibility with mature processes. Its reflow process parameters are evolving toward narrower windows, higher consistency, and stronger equipment coordination. The driving factors include the domestic reflow soldering temperature control accuracy being improved to ±1.5℃, the Tg value of PCB boards generally rising above 150℃, and the proportion of 0201 and smaller package devices exceeding 38%. Practitioners need to simultaneously upgrade the calibration frequency of reflow profilers, refine the compensation rules for stencil apertures, and establish a batch-specific mapping table between solder paste viscosity and printing speed.
Published: 2026-08-27Eutectic solder Sn63Pb37 solder wires and bars are the preferred material for reworking high-density devices such as BGA and QFN in the repair industry, thanks to their precise 183°C melting point, absence of pasty range, and excellent wettability. Jia Jinyuan's products of this model have demonstrated extremely low bridging rates and stable tensile strength values in actual production lines. With common diameter specifications ranging from 0.5mm to 1.2mm, they meet the dual requirements of manual soldering iron welding and hot air gun solder replenishment.
Published: 2025-02-02Our technical team is always ready to provide professional solder material selection advice and SMT process solutions.