Kester part number 24-6337-8807 is a professional grade solder wire featuring a Sn63Pb37 eutectic alloy with 1.1% 245 rosin activated flux core, available in 0.020 inch diameter on a 1 pound spool. The 0.020 inch diameter and no clean flux formulation make this wire ideal for precision PCB assembly, fine pitch component work, electronics rework, and detailed through hole soldering where minimal cleaning is desired. This eutectic composition melts and solidifies at 183 degrees Celsius, providing consistent joints across a wide range of soldering applications from repair work to small to medium production runs. Kester solder is trusted by professional technicians and manufacturers for reliable, consistent results and is manufactured in the USA to exacting quality standards.
Key Features:
Alloy Composition: Sn63Pb37 (63% Tin, 37% Lead)
Diameter: .020" (0.5 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.
.020" Diameter suitable for smaller to medium soldering projects. 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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