Kester part number 24-7068-7618 is a professional grade lead free solder wire featuring a Sn96.5Ag3Cu0.5 alloy composition with 3.3% 275 rosin activated flux core, designed for electronics rework, PCB assembly, through hole soldering, and general repair work. The 0.031 inch diameter provides precision control for medium sized joints while the no clean flux minimizes post soldering cleanup, making it ideal for production environments and detailed circuit board work. This RoHS compliant formula melts at 217–220°C and delivers consistent wetting and flow characteristics that professionals rely on for reliable solder joints. Made in the USA, it's engineered to meet the demanding requirements of electronics shops, production teams, and experienced technicians who prioritize quality and repeatability.
Key Features:
Alloy Composition: Sn96.5Ag3Cu0.5 - A proven lead-free formula that meets RoHS compliance standards.
Diameter: 0.031 inches
Packaging: 1 pound spool, suitable for both professional and hobbyist use.
Flux Core: 3.3% 275 No Clean Flux
Melting Point: 217-220° C 422-428° F
.031" 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.
