Chip Quik NC5SW020-1LB Sn10/Pb88/Ag2 No-Clean Flux Core Solder Wire

Introduction

The Chip Quik NC5SW020-1LB is a no-clean flux core solder wire designed for demanding electronic assembly and repair work. Its high-lead Sn10/Pb88/Ag2 alloy composition supports applications requiring elevated soldering temperatures, strong joints, and compatibility with silver-coated surfaces.

Part Description

This solder wire uses a Sn10/Pb88/Ag2 alloy containing 10% tin, 88% lead, and 2% silver. The alloy has a melting range of approximately 268°C to 290°C, making it a high-temperature solder compared with common tin-lead electronics solders.

The wire has a 0.020-inch diameter, providing controlled solder delivery for through-hole connections, point-to-point wiring, terminals, and repair tasks. Its 2.2% synthetic no-clean flux core helps promote wetting during soldering while reducing the need for post-solder cleaning.

The silver content makes this solder especially useful for joining silver-plated or silver-bearing components, where it can help reduce silver scavenging. Its high-temperature behavior also makes it suitable for step soldering processes, in which lower-melting solder is applied first and subsequent operations use a higher-melting alloy.

Applications

• High-temperature electronic soldering
• Step soldering and multi-stage assembly
• Repair of high-reliability electronic assemblies
• Soldering silver-plated terminals and contacts
• Through-hole component installation
• Point-to-point wiring and connector soldering
• Power electronics assembly
• Heat-resistant cable and terminal connections
• Rework of legacy leaded assemblies

Industries

• Electronics manufacturing
• Aerospace and defense
• Telecommunications
• Industrial automation
• Power conversion and energy systems
• Test and measurement equipment
• Automotive electronics
• Laboratory and research environments
• Maintenance, repair, and operations

Usage Ideas

1. High-Temperature Power Supply Repair
   Repair terminal connections or through-hole components in a power supply that experiences elevated operating temperatures.

2. Silver-Plated Connector Assembly
   Solder wires or terminals onto silver-plated connectors while minimizing the risk of dissolving the silver surface.

3. Step-Soldered Control Module
   Build a control assembly using conventional solder for sensitive components first, then use the high-melting Sn10/Pb88/Ag2 alloy for later structural or heat-exposed connections.

Conclusion

The Chip Quik NC5SW020-1LB is a specialized no-clean solder wire for high-temperature and silver-bearing soldering tasks. With its Sn10/Pb88/Ag2 alloy, 2.2% flux core, and fine 0.020-inch diameter, it is well suited to step soldering, durable electronic repairs, and assemblies that require stronger performance at elevated temperatures.