What is SMD ?
SMD stands for Surface Mounted Detail and is an increasingly common way of mounting electronic components. In the past, the capacities were higher and therefore the parts could not be small, as they would have become unusable quite quickly due to the heat they emit. However, with ever-decreasing energy consumption, details can be made smaller and some are even smaller than mounting holes. The numbers behind the abbreviation indicate the size of the part in decimillimmetres. For example, in the case of SMD3020, the dimensions of the part are 3 × 2 mm.
In the case of LEDs, details of different sizes have emerged over time, as technological advances have made it possible for smaller and smaller details. Parts of different sizes also have different properties. For example, with the SMD5050, it is possible to place several different color diodes in one housing, and this also makes possible color solutions in which different colors can be created from one and the same place. Before that, the different colored light sources were next to each other, and this did not always give the exact result you needed. It is also possible, for example with SMD4014, to create a strip that can be bent more than, for example, with SMD 5050.