Surface-mount technology

Surface-mount technology (SMT) uses electronic devices that are made to be placed directly onto the surface of printed circuit boards (PCBs).

SMD capacitors and two through-hole capacitors (with long leads).

SMD resistors next to a match head

Examples of surface-mount devices are resistors, capacitors, LEDs and integrated circuits. Surface mounted devices are generally smaller than those used in the older through-hole technology, which need longer leads and holes in the circuit board.

Other websites

• Media related to Surface mount technology at Wikimedia Commons