Kester part number 24-6337-9713 is a professional grade solder wire featuring a Sn63Pb37 tin lead alloy with 2.2% 285 rosin mildly activated flux, ideal for PCB assembly, electronics rework, and through hole soldering applications. The 0.031 inch diameter size suits medium scale soldering work across industrial electronics repair and production environments. This eutectic composition melts at 183°C (361°F) and is manufactured in the USA, making it a trusted choice for technicians and engineers who require consistent performance and reliable joint formation. The rosin flux core delivers strong wetting characteristics but requires post solder cleaning to meet cleanliness standards.
Key Features:
Alloy Composition: Sn63Pb37 (63% Tin, 37% Lead)
Diameter: .031" (0.8 mm)
Weight: 1 lb (approximately 454 grams)
Package Type: Spool (SPL)
Flux Core: 2.2% 285 Rosin Mildly Activated Flux
Melting Point: 183° C 361° F
Eutectic solder melts and solidifies at the same temperature.
.031" Diameter suitable for medium sized soldering jobs. Rosin Flux must be cleaned 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.
