Solder Wire CYNEL Cyna 0.25 mm 250 g Sn60Pb40

CYNEL Cyna solder wire with 0.25 mm diameter and 250 g spool is a tin-lead alloy (Sn60Pb40) formulated for manual soldering and rework of electronic components. The thin 0.25 mm core wire delivers controlled feed and rapid wetting, making it suitable for precision joints on printed circuit boards, through-hole and small surface-mount parts, as well as connector repair and delicate electronics assembly tasks.

Advantages

The alloy composition Sn60Pb40 ensures a lower melting range and reliable flow characteristics, which support consistent solder joints and reduced bridging during fine work. The 0.25 mm diameter enables precision application with minimal excess solder, and the 250 g spool provides extended use for repair shops and hobbyists alike. It is compatible with standard fluxes and typical soldering irons used in electronics maintenance.

Suitable for

• Manual soldering of printed circuit boards (PCB) and small components
• Rework and repair of through-hole and small SMD parts
• Connector and cable joint repair in consumer electronics
• Prototyping, hobby electronics and small-batch assembly

Key specifications

• Alloy: tin-lead alloy (Sn60Pb40)
• Wire diameter: 0.25 mm
• Spool weight: 250 g
• Melting characteristics: suitable for conventional electronic soldering temperatures
• Application: manual soldering and rework of electronic components

How to use

Use a properly temperature-controlled soldering iron set to an appropriate temperature for Sn60Pb40 alloy. Prepare the work surfaces by cleaning pads and component leads, apply flux if necessary, and heat both the pad and lead before introducing the solder wire to the joint. Feed the 0.25 mm wire steadily to achieve a smooth fillet and avoid overheating sensitive components. After soldering, remove flux residues if using non-clean fluxes and inspect joints for proper wetting and absence of bridges.

Usage recommendations

Observe local regulations regarding lead-containing materials and follow appropriate safety measures: work in a well-ventilated area, avoid ingestion or prolonged skin contact, and dispose of waste according to hazardous-waste guidelines. For fine, precision work, use a soldering iron with a fine tip and appropriate temperature control to optimize results with the 0.25 mm wire.