To put it simply, Surface Mount Technology (SMT) refers to installing electronic parts directly onto a PCB. Since the 1980s, when it first became popular, SMT has been used extensively in producing almost every electronic device.
Surface mount technology has become integral to PCB design due to its potential to improve performance and reliability while reducing processing and handling costs.
Solder-less surface-mount technology (SMT) eliminates the need to drill holes in a printed circuit board by allowing components to be attached in place. In addition to being smaller, SMT parts are designed to sit flush against both edges of the board. As a result, PCBs have become dense, more efficient, and more compact due to an increased ability to hold more components on each board.
The leads of components are inserted into pre-drilled holes on a bare PCB for through-hole attachment. The through-hole technique was the norm for circuit assembly until SMT became popular in the 1980s.
There is widespread speculation that THT may be phased out in favor of Surface Mount, which offers significant cost savings and improved efficiency.
But despite its declining popularity, the Through Hole method is helpful in the era of SMT, offering several advantages and niche applications. The most apparent benefit of through hole technology is its durability; presently, annular rings provide a lasting connection.
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