SMD electronic components

The SMD electronic components (Surface Mounted Device) which, translated, means ""Dispositivo de Montagem Superficial“" are smaller and have shorter terminals than the components PTH (Pin Through hole), thus optimizing the production of PCB boards.

When we use SMD components for board assembly, the process is called SMT Assembly (Surface Mounting Technology), which is currently the most modern and safe way to assemble a printed circuit board. With these components it is possible to optimize space, reduce production costs and produce ever smaller and lighter equipment.

On the assembly line, the SMD electronic components are positioned with very high precision and welded only on the surface of the board and can even use both sides of the PCB.

 What are SMD electronic components?

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SMD electronic components are micro-components used in the process of PCB Assembly  (Printed Circuit Board), these components help save board space due to their size. The SMD electronic components are widely used, as companies choose to save space and consequently reduce production costs, the SMD electronic components are basically compact versions of PTH components.

Because they are very small, the handling and application on the boards becomes more difficult, but if your way is to opt for economy, the SMD electronic components are a great choice. In the production of SMT boards, which use the SMD electronic components, first a paste is applied on the islands where the components are to be placed, then the components are positioned on the paste, finally the printed circuit board is placed inside a soldering furnace, at this moment the soldering paste melts and connects the SMD components through its terminals and thus are electrically connected, the board comes out of the furnace solid and the connection is completed.

The most popular among the SMD electronic components, is the  SMD LED,  became popular because of its versatility in lighting. It was developed to reduce the space occupied by plate components, such as resistors, diodes and transmitters. There are two common models on the market. The tapes with 3528 SMD LED are found in 5 meter long and 300 LEDS models, can be found in white, color and RGBs and are more economical.

 Application of SMD components

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The SMD electronic components are commonly used in SMT plate mounting. SMT board assembly, is the assembly where the components are inserted in the surface of the board, unlike THT, which does not require holes to insert the components, since the components used are the SMD, thus saving space, matter, and ultimately, money. The vast majority of applications use the SMD components, because it basically replaces PTH components, so due to its advantages it is widely used. We will mention some of the applications that SMD electronic components are most used: automation, medical equipment and security.

1° Application circuits in automation:

The application that uses the most SMD electronic components is that of automation, as in sensor and timer control.

2nd Circuits of applications in medical equipment:

The second is the use of meters and equipment for medical procedures.

3° Safe application circuits

Last but not least, it is used in access control and trackers.

SMD components for PCB assembly

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In pcb assembly, the SMD electronic components are a great choice, of course there are pros and cons, but everything is part of a balance and know what is best for your project. Currently, a large number of companies choose the assembly using the SMD electronic components, In the past PTH components were used a lot, but as the board to which they were inserted had holes, only one side of the board could be used. With the use of SMD components, you can use both sides of the plate, and as already mentioned, save in several aspects.

PTH components are still used with low frequency because they are larger and their handling is simpler than SMD, but even easier to handle, the SMD components are leaders in use. SMT Assembly It is very simple, first apply the solder paste, then with the help of clamps or most of the time with machines, the components are inserted, because it is difficult to use human labor for the assembly, after the whole process is placed in a furnace, where the solder melts and connects the components electrically, to ensure the process is necessary to cool the board. 

Cromatek works with all kinds of components, provides two contract methods: the labor and the Turnkey. Labor is where the client supplies the components for the assembly, and Turnkey is where Cromatek is responsible for the whole process from the logistics, components management, assembly, until the final packaging.

Where to buy SMD components direct from the factory?

When it comes to which components to choose, and where to choose, the issue becomes a little more complicated, due to the origin of the product and quality. There are places that manufacture and distribute components with very low quality, what we mean by that is that when a component, is it SMD or PTHIf the equipment is of inferior quality, when used in any circuit, it may impair its operation, either by burning the whole circuit or by endangering the safety of the equipment.

Sendo assim, o ideal é pesquisar bem a procedência do material, como é fabricado, quais materiais são utilizados, a reputação do fabricante.  Na Cromatek isso é assegurado, há muitos anos no mercado, referência quando o assunto é componentes eletrônicos e montagem de placa. Conta com máquinas de última geração, colaboradores capacitados e eficientes.

At Cromatek you will find all kinds of quality assured components, since they are ISO 9001/2015 certified. Check out the products and be surprised at the advantages you'll get from acquiring them.