Kester 44 Activated Rosin Cored 63/37 0.04 Inch Diameter Solder

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Slashed Prices - Limited Quantity

$39.49 ea

1 ship on Jan. 24

  • Jameco Part no.: 2237589
  • Manufacturer: Kester
  • Manufacturer no.: 24-6337-0039
  • Electronics Parts Locator
  • This item is discontinued and is not
    recommended for new designs.
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Kester 44 Activated Rosin Cored 63/37 0.04" Diameter Solder

For Lead-free and leaded alloys

Kester 44 Rosin Flux is an activated rosin formula for use in flux-cored solder wire. 44 has virtually dominated the field of activated rosin core solders for well over four decades. An outstanding performance feature of this flux is the "instant-action" wetting behavior. The high mobility and fast-spreading action of this flux results in more reliable production line soldering.


  • 0.04" diameter (1.01mm)
  • 63% tin, 37% lead
  • High activity RA formulation
  • Excellent solderability to a wide variety of metallization
  • Industry standard RA cored wire for decades
  • Classified as ROM1 per J-STD-004

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  • Specification Value
    Tin (%)63
    Lead (%)37
    Silver (%)0
    Copper (%)0
    Diameter (mm)1.016
    Weight (lbs.)1

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