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Kester lead-free solid solder wire – designed for general soldering applications where flux is applied separately, providing clean melting behavior, strong wetting, and reliable mechanical strength for durable solder joints in electronic assemblies.

  • Item Number: Lead-Free Solid Solder Wire

  • Manufacturer: Kester®

  • Alloy/ Composition: SAC305 (Sn96.5/Ag3.0/Cu0.5) or Sn100C (Sn/Cu/Ni+Ge) depending on application

  • Diameter/ Wire Gauge: Multiple diameters available (e.g., 0.25–3.0 mm typical)

  • Flux Type/ Core Type: Solid wire (no flux core)

  • Melting Temperature: ~217–221 °C (SAC305); ~227 °C (Sn100C)

  • Packaging: Contact to Techniq VN for details.

  • Shelf Life: Contact to Techniq VN for details.

1. Product Overview

Kester Lead-Free Solid Solder Wire is a premium-quality solder alloy designed for environmentally compliant, lead-free electronics assembly. Composed of tin (Sn), silver (Ag), and copper (Cu), the wire ensures superior wetting, reliable solder joints, and consistent melting behavior. Its formulation minimizes dross formation and enhances flow, making it ideal for high-reliability soldering applications.

2. Applications

This solder wire is suitable for general electronics soldering, surface mount technology (SMT), through-hole assembly, rework, and repair. It is particularly effective for fine-pitch components, high-density PCBs, and lead-free production lines where precise soldering and consistent quality are critical.

3. Typical Properties – Specifications

  • Alloy Composition: Sn96.5/Ag3.0/Cu0.5 (SAC305)

  • Melting Range: Approximately 217–220°C

  • Flux Core: Mildly activated, rosin-based flux for no-clean applications

  • Diameter Options: Multiple diameters available for diverse soldering needs

  • Residues: Minimal and non-corrosive, suitable for no-clean processes

  • Mechanical Properties: High joint strength and reliability

BERGQUIST microTIM mTIM 1028 Thermal Interface Coating High performance thermal management solution for nickel finished heat sinks, optical transceivers, and data center liquid cooling systems

BERGQUIST microTIM mTIM 1028 is purpose built for riding cage assemblies in servers, switches, and routers, interfacing with electroless nickel plated copper or aluminum heat sinks. It ensures stable operation in high power transceiver modules while also extending applicability to liquid cooling components, heat pipes, and fin based dissipative structures.

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