What material has IEC selected as its preferred lead-free solder alloy?
IEC has selected SAC305 (96.5Sn-3.0Ag-0.5Cu) as its Pb-free solder alloy of choice for reflow soldering operations. This material melts at 217 °C. IEC has selected the SN100C alloy for its Pb-free wave soldering and hand-soldering operations. This tin-copper alloy is compatible with SAC305 and offers many advantages compared to SAC305 for PTH soldering including lower cost, shinier solder joints and lower affinity for dissolving materials such as copper and iron, which preserves solder iron tip life and wave solder machine parts. The melting temperature for this alloy is 227 °C. What are my cleaning choices with Pb-free solder? IEC can support water-soluble or no-clean fluxes for use with Pb-free soldering. What temperatures do my RoHS-compliant components need to withstand to be compatible with your Pb-free soldering process? IEC designs its lead-free reflow profile so that the target peak temperature for the coldest solder joint is about 235 °C. The hotter areas of the board may reac
