Kester part number 24-6337-6411 is a professional grade solder wire with Sn63Pb37 eutectic alloy composition and 331 Water Soluble flux, offered in a 0.062 inch diameter that handles medium to larger PCB assemblies, through hole soldering, and electronics rework applications with reliable, consistent results. The 3.3% flux core provides excellent wetting and flow characteristics for both repair work and production level soldering. This water soluble flux requires thorough post solder cleaning but delivers the thermal performance and joint quality that experienced technicians depend on for demanding electronics work. Made in the USA, this solder melts at the eutectic point of 183°C, making it an industry standard choice for professionals who prioritize repeatability and reliability.
Key Features:
Alloy Composition: Sn63Pb37 (63% Tin, 37% Lead)
Diameter: .062" (1.5 mm)
Weight: 1 lb (approximately 454 grams)
Package Type: Spool (SPL)
Flux Core: 3.3% 331 Water Soluble Flux
Melting Point: 183° C 361° F
Eutectic solder melts and solidifies at the same temperature.
.062" Diameter suitable for medium to larger sized soldering jobs. Water Soluble flux must be cleaned thoroughly after use.
Ultra fine sized diameter useful for precision soldering and micro electronics.
.015" (0.4 mm)
Very fine sized diameter useful for precision soldering and jobs requiring small amounts of solder.
.020" (0.5 mm)
Fine sized diameter used for through hole and and surface mount work. Delivers a Controlled amount of solder.
.025" (0.6 mm)
Ideal for standard circuit board components where precision is needed but not ultra-fine work.
.031" (0.8 mm)
Ideal for fixing circuit boards, replacing components, and general rework. Popular for Arduino, Raspberry Pi, and DIY projects. It's a versatile diameter, often called the "sweet spot" for electronics.
.040" (1.0 mm)
Perfect for surface-mount devices (SMDs) and medium components where precision is key but more solder is needed.
.050" (1.27 mm)
Used for various tasks where a balance of flow and control is required, like general electrical repairs.
.062" (1.5 mm)
medium-thickness wire ideal for general electronics, larger through-hole components, appliance repair, automotive work, and crafts like stained glass
.093" (2.36 mm)
versatile, medium-to-thick wire used for general and heavier-duty electrical, electronics, automotive, and HVAC repairs/manufacturing.
Size guide text
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