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Lead free tin

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Lead solders vs. lead-free - similarities and differences

Soft soldering in electronic applications is based on connecting two elements (usually component leads with a PCB pad) using a relatively low-melting metal alloy. These conditions are met both by alloys based on tin and lead, as well as their lead-free versions (e.g. Sn99Cu0.7Ag0.3). In the case of the latter, however, the melting point is higher by about 30...40 o C, so the actual temperature of the tip, enabling effective soldering, must also be significantly higher. A different material also means differences in the appearance of solders - in the past, properly made connections could be recognized by their almost mirror surface, and any matting testified to problems (e.g. overheating of tin or lack of flux, and in extreme cases it could even be signaled by the so-called cold solders) . Today, the situation has changed a bit - the surface of lead-free solders reflects light slightly worse as standard, so more attention should be paid to the correctness of the soldering process itself. What's more - a higher tip temperature also means a greater risk of thermal damage to electronic components or a printed circuit board, so before switching to RoHS-compliant assembly, it is worth practicing working with modern solder on universal boards or self-assembly kits.

Lead-free tins in the Botland offer

We offer a large selection of soldering materials for various applications. We offer lead-free tin of the renowned Polish brand Cynel in spools with a net weight of 100g in the following diameters: 0.56 mm, 0.6 mm, 0.7 mm and 1 mm, as well as in vials with a net weight of 14 g and a wire diameter of 1, 0 mm. Check also the other materials and equipment for fitters and service technicians available in the Soldering category: fluxes, soldering braids and pastes, suction cups, tips, cleaners and sponges, ESD accessories and many others.