Through-hole technology
mounting scheme used for electronic components that involves the use of leads on the components that are inserted into holes drilled in printed circuit boards and soldered to pads on the opposite side manually or by automated insertion mount machines / From Wikipedia, the free encyclopedia
Through-hole technology is a way to mount electronic components to printed circuit boards (PCB).
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Resistors.jpg/640px-Resistors.jpg)
It involves the use of leads on the components that are inserted into holes drilled in the PCBs and soldered to pads on the opposite side either by manual assembly (handiwork) or by the use of automated insertion mount machines.[1][2]
Many parts made for through hole mounting are larger than those for surface-mount technology.