Kester part number 24-6337-8813 is a eutectic tin lead solder wire featuring a 63% tin and 37% lead alloy in a 0.040 inch diameter with 1.1% 245 no clean flux. This classic alloy composition melts at 183 degrees Celsius, making it ideal for through hole soldering, PCB assembly, electronics rework, and general board repair applications where reliable wetting and joint integrity are essential. The 0.040 inch diameter suits medium scale soldering tasks, while the no clean flux provides excellent flow characteristics and minimal residue, reducing or eliminating post solder cleaning requirements. Trusted by professionals for decades, this made in USA solder wire delivers the consistent performance and repeatability that precision electronics work demands.
Key Features:
Alloy Composition: Sn63Pb37 (63% Tin, 37% Lead)
Diameter: .040" (1.0 mm)
Weight: 1 lb (approximately 454 grams)
Package Type: Spool (SPL)
Flux Core: 1.1% 245 No Clean Flux
Melting Point: 183° C 361° F
Eutectic solder melts and solidifies at the same temperature.
.040" Diameter suitable for medium sized soldering jobs. No Clean Flux designed to be left on the board with minimal cleaning.
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
Choosing a selection results in a full page refresh.
