Kester part number 24-6337-8809 delivers a eutectic Sn63Pb37 solder wire in a convenient 0.025" diameter format with 1.1% 245 rosin activated flux, ideal for precision electronics work including PCB assembly, through hole soldering, component rework, and detailed repair applications. The 63% tin and 37% lead composition melts at 183°C and offers reliable wetting and joint integrity across a wide range of soldering tasks. At 0.025" diameter, this wire suits smaller to medium solder joints where control and accuracy matter most, making it a trusted choice for technicians and hobbyists working on delicate circuitry. Made in the USA with a no clean flux system designed to minimize post solder cleanup while maintaining professional results.
Key Features:
Alloy Composition: Sn63Pb37 (63% Tin, 37% Lead)
Diameter: .025" (0.6 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.
.025" Diameter suitable for smaller to 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
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