Selective Soldering is a process of selectively soldering through-hole components to a printed circuit board using a selective soldering machine. Unlike a wave solder machine, a selective solder machine has a miniature wave that can be programmed to solder one through-hole component at the time.
While wave soldering is the preferred method for soldering a large number of boards with through-components. Selective soldering is the preferred method for soldering a small number of boards with mixed technology (SMT and through-hole components). Compared to manual soldering, selective soldering is faster, more repeatable and leads to better results.
Depending on the job, sometimes it is necessary to use a selective solder fixture (also known as a selective wave solder pallet) to provide support and improve the overall process.
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