Kester 24-9574-7609 K100LD is a lead free solder wire with 99.3% tin and 0.7% copper composition, supplied in 0.015 inch diameter on a 1 pound spool with 275 rosin activated flux for no clean soldering. This professional grade wire is engineered for precision electronics work including PCB assembly, component rework, through hole soldering, and general electronics repair, delivering reliable joints with minimal cleanup required. The low cost alloy melts at 227°C (441°F) and meets RoHS compliance standards, making it suitable for both production environments and field repairs. Kester's K100LD is a trusted choice among electronics professionals who prioritize consistent performance and cost effectiveness in high volume or demanding soldering applications.
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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