Over the past several decades, surface mounted technology (SMT) has grown in popularity and has widely replaced through-hole technology. But why is SMT so preferable to through-hole mounting, and can through-hole still be relevant in certain applications? By taking a few moment's to learn about both methods, you'll gain a thorough understanding of the unique characteristics of the two, the key differences between them, and what it is that makes SMT the preferred option.
For most of the history of manufactured electronics, "through hole" printed circuit boards have been the standard. The idea has been effectively unchanged since the 50s, although there've been improvements in size and manufacturing quality. A through-hole circuit board needs holes drilled through it for connections and circuitry to pass through.
As technology continues to evolve, we must work to find ways to keep up with it. Although through-hole mounting or technology was the predominant option for developing printed circuit boards (PCBs) for decades, today's consumer demands require electronics manufacturers to embrace new technologies as a means of developing compact yet highly dense boards. The most popular solution has been surface mount technology.