An IC SMD Integrated Circuit is a type of electronic component that is designed to be mounted directly onto a printed circuit board (PCB) without the need for through holes. SMD components are smaller and more compact than their through-hole counterparts, which makes them suitable for use in small electronic devices and systems. An IC SMD Integrated Circuit has been packaged in an SMD format. An integrated circuit is a complex electronic circuit that contains many interconnected electronic components on a single chip of semiconductor material.