SMD stands for Surface Mounted Device and COB mean Chip On Board. Light emitting diode or LED for short has come to be highly preferred. The Surface Mounted Device (SMD) was initial introduced in 2008. Whereas, the COB LED innovation has been available since 2010 in Guangzhou at the Canton Fair.
These SMD chips are of different shades such as Blue, Green as well as Red which helps create colored lights. The COB LED lights are either ceramic or light weight aluminum.
What is an SMD LED Light?
SMD lights make use of SMT innovation which installs the LED chip onto a PCB board. The PCB is constructed in a flat object, rectangular-shaped, and is what one said as an SMD. One can see a little black point at the middle of the SMD if you look closely in an SMD LED, it is the LED chip. The back side of it has 2 steel spots (cathode as well as anode) which are utilized for soldering with the circuit for the light.
The 5050 SMD has three metal points as there are three chips inside. The SMD Led has various kinds, such as 5730, 5630, 5050, 3030, 3014 and 2835. Each of these is named based on the dimensions of the LED indicating it is based upon the width as well as length. Prior to the COB was invented, the SMD 5050 and 3528 was utilized.
What is a COB LED?
The COB LED utilizes the new encapsulation innovation. As contrasted to the SMD 5050: 3 chips or the 3528: 1 chip, the COB LED has multiple chips on exact same printed circuit board (PCB). The PCB gets on the substrate of the COB. The diode chips of the COB are ranged in series/ or parallel which depends upon the circuit. This substrate can either be ceramic or aluminum. If you are searching for a better thermal conductive efficiency, then the ceramic kind is what you require as it will certainly assure a much reduced LED running temperature.
The COB LED has 2 metal link spots, the cathode and anode. The COB has a much better thermal conductivity as contrasted to the SMD, as a result of the fact that it places chips directly to the substratum that has a big heat radiation space. In order to have the COB size to be as little as possible, the circuit requires to be designed to reduce the chip’s distance.
Conclusion
COB LEDs come in various forms which make it much easier for them to be used for various fittings. Whereas, SMD lights can only be utilized for restricted fittings, there are numerous advantages of using COB LED lights such as better thermal conductivity as well as lower manufacturing failure ratio because of the special layout.
Deciding between SMD and COB LED lights depends upon your needs. Both of the lights are being used for different applications. When picking between the two, better to know about which fitting is being made use of for. LED lights have changed the entire illumination market.