Our Sn42Bi58 solder wire and solder bar is a rosin-cored and lead-free product, featuring low temperature and low melting point. Its melting point is approximately 138 degrees Celsius, and the flux content is 2.0%.

In addition, our company is able to produce the no-clean, solid-core and lead-free tin wire. At present, the minimum diameter of our Sn42Bi58 lead-free tin wire reaches 0.5mm. Actually, this product is more difficult to be manufactured than other tin wires. Its consumption rate is over 5 times as high as that of the common tin wires.

Only a few manufacturers are capable of supplying this Sn-Bi tin wire within the current soldering industry. Our product has been sold to United States,South Korea, and Chile, among other countries. Beyond that, we are looking for more agents on a global scale. Please don’t hesitate to contact us, if you show interest in our products.

The Sn42Bi58 solder wire and solder bar can be applied in high-precision LED products. It is also adaptable to the soldering of heat-sensitive components of electronic products, as well as the soldering of both thermal overload protector and safety components.

Applications

• Electronics Manufacturing & Packaging
• Soldering for heat-sensitive components: Ideal for LED chips, CPU heat sinks, sensors, and integrated circuits (ICs), preventing performance degradation or damage caused by high temperatures.
• Secondary soldering for PCBs: Used in multi-stage PCB soldering, such as reflowing after SMT assembly, especially in flexible and thin PCBs, reducing thermal stress on the board.
• Semiconductor packaging: Enables low-temperature bonding between chips and substrates, improving production yield and ensuring reliability in high-density packaging.
• Commonly used in: LED lighting, thermal switches, fire alarm systems, TV tuners, and smart home control modules.
• Automotive Electronics
• Safety components: Applied in AC protection devices, surge protectors, and temperature control modules, ensuring stability in high-temperature automotive environments.
• Sensors & actuators: Used for sensor soldering in Electronic Control Units (ECUs), supporting the miniaturization trend in automotive electronics.
• Circuit Protection for Industrial Equipment
• Lightning protection devices: Suitable for arrestors and surge protectors, requiring fast, low-temperature soldering to maintain circuit reliability.
• Industrial control components: Applied in thermal cutoffs, thermal protectors, and precision control modules, designed to perform reliably in high-temperature and high-humidity industrial settings.
• Medical & Optical Devices
• Medical equipment: Used for implantable medical devices like pacemakers and portable diagnostic tools, complying with biocompatibility requirements.
• Optical components: Ensures secure bonding in eyeglass lenses and optical modules, preventing heat from affecting optical performance.
• Aerospace & Renewable Energy
• Aerospace applications: Used in low-temperature soldering for spacecraft circuit boards, ensuring reliable performance in extreme temperatures.
• Renewable energy: Suitable for solar panel circuitry and battery pack connections, as it minimizes heat damage during soldering.

Price and Payment Terms
We accept such international trade terms as EXW, CFR, CIF, FOB, and more. Moreover, we can accept such payment methods as T/T, Western Union, cash, and some others.

Related Names
No Clean Soldering Wire | Lead Free Flux Solder Wire | Low Melt Soldering Supplies