what is smd

SMD stands for Surface Mount Device, which is an electronic component that mounts on the surface of a printed circuit board (PCB) . SMDs are mounted directly onto the surface of a PCB, unlike through-hole components that require leads to be inserted into holes in the circuit board. SMDs are smaller and lighter than through-hole components, allowing more components to fit on a given area of substrate. They are also less expensive than through-hole parts. SMDs are used in surface-mount technology (SMT), which is a method of mounting and soldering electronic components onto a PCB. SMT has largely replaced through-hole technology in industry because it allows for increased manufacturing automation, which reduces cost and improves quality. SMDs are commonly used in LED lights and strip lights.