noun
surface-mount device; SMD
Technical term in electronics for components designed to be mounted directly onto the surface of a printed circuit board.
この基板には表面実装部品が使われています。
Surface-mount devices are used on this board.
Through-hole components, which have leads inserted into holes in the PCB, unlike surface-mount devices.
Compound of 表面 (surface) + 実装 (mounting) + 部品 (component). A modern technical term.