![]() ![]() Through-hole component, also spelled "thru-hole", is an electronic component that has pins designed to be inserted into holes and soldered to pads on a printed circuit board (PCB). In industry, SMT has largely replaced the previous construction method of fitting components with wire leads into the holes of the circuit board (also known as through-hole technology). ![]() The comparison among the application of PCB, mounted components and solder paste in the SMTA will be shared and compared. ![]() These techniques are applied to the PCB, mounted components and solder paste. SMT packages are soldered to the surface of a printed circuit board to alleviate this problem. The pins contributed inductance, and the size of the holes limits the density of the pins. This technique which is SMT, replaces the old technique which the older package tended to use through-hole pins, which pass through holes in a printed circuit board and were soldered from below. Surface Mount Technology or SMT is a rapidly evolving field in the manufacture of electronic components, involving either active (transistors, integrated circuits, diodes, etc.) or passive (capacitor, resistors, inductors, coils, etc.) which do not have leaded connections. ![]()
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