

Lead-Free Solder Paste Product
Nectec’s Lead-Free Solder Paste combines advanced alloy technology with rigorous quality control to deliver reliable, high-performance soldering solutions for modern electronic assembly. With features like excellent thermal stability, minimal defects, and a wide process window, it ensures consistent performance across diverse applications—from smart devices and LED components to automotive and power electronics. The product’s versatile alloy options and fine powder grades enable precision soldering for both standard and high-reliability requirements, while its lead-free composition aligns with global environmental standards. Trust Asahi to provide innovative, cost-effective solder pastes that meet the evolving needs of the electronics industry.

Lead-Free Solder Paste Product
- Description
Description
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Excellent Thermal Stability
Designed with strict production process control to ensure consistent performance during reflow soldering, maintaining stability across varying temperature profiles (e.g., 217–227°C for Sn-Ag-Cu alloys and 138°C for Sn-Bi alloys). This feature enables reliable soldering in high-precision electronic assembly. -
Superior Solderability and Wetting Property
Formulated to provide optimal adhesion to base metals, ensuring full and uniform solder joints. The low surface tension facilitates excellent wetting, minimizing solder defects and enhancing joint strength. -
Wide Reflow Window
Accommodates diverse soldering processes with a broad operational temperature range, making it suitable for complex PCB assemblies and fine-pitch components (e.g., 0201, 01005, and fine-pitch IC devices). -
Minimal Solder Beads and Voids
Engineered to reduce short circuits caused by solder beads and ensure high-strength joints with low void rates, meeting strict reliability standards for electronic products. -
Diverse Alloy Compositions for Versatile Applications
Offers multiple alloys (e.g., Sn96.5Ag3.0Cu0.5, Sn42Bi58) to cater to different requirements: high-temperature resistance for automotive electronics, low-temperature soldering for heat-sensitive components, and lead-free compliance for environmental standards. -
Fine Powder Grades for Precision Printing
Available in powder diameters ranging from Type 3 to Type 7, supporting precise deposition via printing or dot coating for applications such as flexible PCBs, wireless chargers, and optoelectronic devices.
specification
LEAD-FREE SOLDER PASTE | Solder paste model | Types of solder paste | Powder diameter | Applicable alloy | Usage | Welding method | Application |
VXG | ROL1 | Type4 Type5 Type6 Type7 | Sn96.5Ag3.0Cu0.5 Sn98.5Ag1.0Cu0.5 Sn99Ag0.3Cu0.7 | Printing | Reflow soldering | Suitable forsmart products 0201、 01005、Fine pitch IC devices | |
VHF | ROLO | Suitable for smart products 0201、 01005、Fine pitch IC devices | |||||
V3 | ROLO | Printing/ Dot Coating | Laser welding/ Haber welding/ Reflow welding | Suitable for electronic products such as flexible circuit boards (FPC),connectors, wireless chargers,optical | |||
VH | ROLO | Type3 Type4 Type5 | Sn96.5Ag3.0Cu0.5 Sn98.5Ag1.0Cu0.5 Sn99Ag0.3Cu0.7 Sn99.3Cu0.7Ni/Ge/Ag | Printing/ through-hole printing | Reflow soldering | Suitable for household appliances LED、 Ordinary electronic products such as appliances | |
VW | ROLO | Home appliances,internet LED、 Power supply and other products | |||||
VC | ROLO | 0.3BGA,0201,0.3IC and other precision products, smartphones,modules,etc | |||||
V4 | ROL1 | LED,heat sink,through-hole printing, low-temperature soldering process | |||||
WS | ROL1 | Suitable for products that require very clean surface, can be cleaned with alcohol or water | |||||
A6 | ROLO | Type3 Type4 Type5 | Sn42Bi58 Sn64Bi35Ag1.0 Sn64.7Bi35Ag0.3 | Printing/ Dot Coating | Reflow soldering | LED,heat sink,through-hole printing, low-temperature soldering process | |
VX | ROLO | Sn97.8Cu0.7Bi1.5 | |||||
VT | ROLO | Type4 | Sn96.5Ag3.0Cu0.5 | Printing | Reflow soldering | IGBT specific,suitable for high-speed printing and mounting processes | |
LEAD SOLDER PASTE | VG | RMA | Type3 Type4 | Sn63Pb37 Sn62.9Pb36.9Ag0.2 Sn62.8Pb36.8Ag0.4 | Printing/ Dot Coating/ through-hole printing | Reflow soldering | Meet the assembly process of various house hold appliances, networks, military, automotive communication, and LED series products. |
VR | RMA | ||||||
Halogen-Free Solder Paste | Model | Alloy Composition | Powder Size | Viscosity (pa.s) | Melting Point (°C) | ||
ASH SAC305VHF | SnAg3.0Cu0.5 | 4#, 5#, 6# | 200±30 | 217-220 | |||
GLH-980-VW | SnAg3.0Cu0.5 | 4#, 5#, 6# | 200±30 | 217-220 |
