Overview
Amit Solder Paste is a lead-free, no-clean solder paste designed for surface mount technology (SMT) applications in the electronics industry. It is composed of a homogeneous mixture of fine solder powder and flux, ensuring reliable soldering performance. This solder paste is widely used in PCB assembly due to its environmental compliance (RoHS and REACH standards) and consistent printing characteristics. It is suitable for high-speed stencil printing and reflow soldering processes, making it ideal for mass production of electronic devices.
Physical and Chemical Properties
Amit Solder Paste exhibits a gray, creamy consistency with a stable viscosity, ensuring smooth stencil printing. The paste typically contains tin (Sn), silver (Ag), and copper (Cu) as the primary alloy components, with a melting range of 217-227°C. The flux system in the solder paste is formulated to minimize residue, eliminating the need for post-soldering cleaning. It provides excellent wetting properties, reducing the risk of solder balling and bridging during reflow. The paste is insoluble in water and has a density of approximately 8.5 g/cm³.
Main Applications
Amit Solder Paste is primarily used in the assembly of printed circuit boards (PCBs) for consumer electronics, automotive electronics, and industrial control systems. It is compatible with fine-pitch components, including QFPs, BGAs, and chip resistors/capacitors. The paste is also suitable for mixed-technology boards combining SMT and through-hole components. Its low voiding characteristics make it ideal for high-reliability applications, such as aerospace and medical devices, where consistent solder joint quality is critical.
Safety and Storage
Amit Solder Paste should be stored in a cool, dry environment at 2-10°C to maintain its shelf life (typically 6 months). Avoid exposure to moisture or direct sunlight, as this can degrade the flux activity and solderability. When handling the paste, use appropriate personal protective equipment (PPE), such as gloves and safety glasses, to prevent skin contact and eye irritation. Ensure adequate ventilation in the workspace to minimize inhalation of fumes during reflow soldering.
B2B Procurement Guide
When procuring Amit Solder Paste, verify the alloy composition (e.g., SAC305, Sn96.5/Ag3.0/Cu0.5) and particle size (Type 3, 4, or 5) to match your application requirements. Request technical datasheets and certifications (RoHS, REACH) from suppliers. For bulk purchases, consider testing a small batch to evaluate printing performance, solder joint quality, and reflow profile compatibility. Establish a reliable supply chain to ensure consistent quality and avoid production delays.
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