ZCZQC LED Chip 4PCS 110V 3W White High Power COB LED COB Lamp Beads LED Lamp Bulb Chips Light-Emitter Diode Chips
Moonleds supply professional and honest service.
Share:
Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.
Fields with an asterisk * are required
Price AvailabilityWebsite (Online)
URL*
:Price ($)
*
:Shipping cost ($):
Date of the price (MM/DD/YYYY):
/
/
Store (Offline)
Store name*
:
Enter the store name where you found this product
City
*
:
State:
Please select province
Price ($)*
:
Date of the price (MM/DD/YYYY):
/
Are you interested in learning more about led chip round size chart? Contact us today to secure an expert consultation!
/
Submit Feedback
Surface mount LEDs are widely used in all types of lighting, display, automation and electronics products. SMD (surface mount device) LEDs offer compact size, ease of PCB assembly and design flexibility.
There are several common form factors used for SMD LEDs identified by 4 digit or 5 digit alphanumeric codes like , , etc. These codes precisely define the package dimensions.
This article provides an overview of popular SMD LED package types, their dimensions, characteristics, applications and differences to help designers choose the optimal option.
SMD LEDs have a 4 digit or 5 digit code where:
For example:
So the codes precisely identify the LED chip dimensions. Let&#;s look at some common types in more detail:
With a size of just 2.8mm x 3.5mm, LEDs are very compact surface mount devices suitable when a small LED is needed.
Key features:
LEDs are extensively used in display backlighting, signage, accent and task lighting, decorative lighting, automotive interiors and other applications where high density miniature lighting is required. The small and thin form factor allows easy integration even in tight spaces.
Higher light output versions with efficient 1W or 2W chips make LEDs suitable for a broad range of small form factor luminaires demanding high brightness in a small package.
<img src=&#;https://drive.google.com/uc?export=view&id=1CJwjDruifeGGR6cxa9AVynRTYWJW&#; alt=&#; LED&#; style=&#;width:200px;height:200px;&#;>
The LED package has almost identical dimensions as the , with only a change in orientation from 2.8×3.5mm to 3.5×2.8mm. This gives it a slightly longer/narrower footprint.
Key parameters:
With their compact dimensions and ability to deliver high lumens from mid-power chips, LEDs are well suited for small footprint lighting applications where high density and brightness is important &#; backlighting, small accent lights, signage, decorative lighting, automotive interior lighting etc. The slightly longer package can be beneficial where more space is available in one orientation. provides a higher lumen alternative to for small lighting needs.
With a 5.0mm x 5.0mm square footprint, LED packages provide a higher power lighting solution in a small SMD form factor.
Key features:
The compact square shape and moderately high power capacity make the LED package popular for applications like small downlights, directional and task lighting, architectural lighting, backlighting, automotive interior lighting etc. where the 5mm x 5mm footprint can be easily accommodated. The lower cost also makes LEDs popular in cost-sensitive but high volume applications.
For small form factor directional lighting needs, SMD LEDs deliver substantial lumen output while remaining highly integrable due to their tiny surface mount package.
With a 4.0mm x 1.4mm rectangular size, the LED package is even smaller than / LEDs.
Typical characteristics:
The tiny LED package excels in space constrained applications where minimum PCB area is available for lighting. Best suited for low power decorative lighting, backlighting in miniature displays, front panel indicators etc. The thin rectangle design allows packing into narrow elongated spaces.
LEDs deliver lower light output than or High brightness is not possible due to the tiny 4×1.4mm size. But the highly miniaturized package enables lighting integration in extremely compact products.
Similar to LEDs, the LED package has a wider 5.6mm x 3.0mm rectangular footprint:
Key attributes:
With the capability to deliver very high lumen density from the larger mid-power to high-power chips, LED packages are ideal for small high brightness lighting applications like downlights, spotlights and track lighting where the wider 5.6mm width can be accommodated. The smaller 3mm height assists integration in constrained height products.
With a compact 7.0mm x 7.0mm square shape, LED package offers enhanced brightness vs LEDs:
Typical features:
The LED leverages advanced mid-power to high-power LED chips in the 7x7mm footprint to deliver very high lumen density with easy integration &#; making it ideal for applications like compact downlights, reading lamps, accent lighting, architectural lighting etc. where high brightness in small footprint is needed.
The + lumen output rivals that of much larger COB LEDs while retaining the design flexibility of the tiny SMD package.
There are several other less common similar large SMD LED package types with minor size variations:
&#; Rectangular 5.7mm x 3.0mm
&#; Square 8.0mm x 8.0mm
&#; 9.0mm x 9.0mm square
These all have similar characteristics as the and SMD LEDs &#; able to deliver very high lumens from >10W LED chips due to the larger surface area.
So they are also well suited for high density high power lighting applications where their particular size can be most easily integrated into the product design.
Comparison of popular SMD LED packages:
PackageSize (mm)Chip PowerLumen OutputKey Applications.8 x 3.51W100-140 lmDisplay backlights, Miniature lights.5 x 2.81-3W100-240 lmSignage, Mini lights.0 x 5.03-5W240-400 lmAccent lights, Task lights.6 x 3.05-10W550+ lmDirectional lighting.0 x 1.40.2-1W60-100 lmDecorative, indicators.0 x 7.010W+ lmHigh power downlightsThis covers the most popular SMD LED package types commonly available. There are also less common larger packages like (12mm x 10mm) which can drive 1.5A or higher currents.
COB or chip-on-board LEDs combine multiple bare LED chips directly mounted on a PCB substrate within a LED package. The main differences between COB LEDs and SMD LEDs are:
SMD LEDs
COB LEDs
For most common lighting applications, SMD LEDs deliver the best balance of flexibility, density and cost effectiveness. COB LEDs are more suitable where very high lumen density is absolutely necessary.
Understanding the standard SMD LED package types, dimensions, characteristics and typical applications allows designers to select the optimal option. SMD LEDs deliver excellent design flexibility, ease of integration and thermal performance in lighting products.
With high brightness mid-power to high-power SMD LED packages now available from reputable suppliers at continually reducing price points, lighting manufacturers can leverage SMD LED technology build compact, efficient, cost-effective and reliable luminaires.
The LED chip encapsulant lens design primarily determines the viewing angle. LEDs with different angle options allow designers to choose the beam width needed.
Easier automated assembly, improved heat sinking, lower profile and aesthetic appearance makes SMD LED packages overwhelmingly popular now.
When used within specifications, mid-power SMD LED chips achieve 50,000 hours of lifetime with 70% lumen retention making them suitable for most applications.
Lower thermal resistance allows the LED package to dissipate heat better. This reduces the chip junction temperature and improves luminosity, efficacy and lifespan.
Side view SMD LEDs emit light laterally and are used when lighting edge-mounted acrylics and light guides. Top view SMDs emit upward and are used in most standard lighting.
If you want to learn more, please visit our website smd led remover.