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MG Chemicals Sn100e No Clean Solder Wire is an electronic grade solder wire. It uses a high-purity, eutectic tin/copper/cobalt alloy, which is complemented with a no clean, synthetically refined, splatter-proof, resin flux core. The 49500 solder meets J-STD-004 and exceeds J-STD-006 specifications. This solder is a great lead-free alternative to leaded solders. It generally provides better wetting, contact angle, flow, and visual appearance than typical Sn63/Pb37 no clean solders, while still delivering excellent performance characteristics. It offers superior solder penetration into plated through holes and surface mount interconnects. Further, it is a suitable replacement for SAC305 solder since it forms brighter, shinier, and less grainy joints. Furthermore, it is less expensive. Mild enough to not require cleaning, it leaves a small amount of post-soldering residues that is non-conductive and noncorrosive and won't cause electrical shorts. The name no clean refers to the fact that the flux residues are not harmful to assemblies and does not mean there will be no residues.

Catalog Number Sizes Available Diameter Gauge Flux Core % Format
49500-454G 1 lb (454 g) 0.032" 21 3.3 Spool

* Also available in flux core percentages: 2% to 4%


  • Lead free
  • Eutectic
  • No clean formula
  • Excellent spread and wettability
  • Low post solder residue
  • Virtually non-splattering
  • Meets J-STD-004B, J-STD-006C
  • RoHS compliant
  • Standard Flux Core percentage at 3.3%
  • Melting Point: 228 °C - 442 °F