4mil Aluminum Base LED PCB Board For Garden Solar Sensor Led Lights OEM

LED Circuits Boards Pcba Aluminum Pcb Board For Garden Solar Sensor Led Lights

LED PCB

The LED PCB comes into being with the rapid development of the printed circuit PCB industry.

Some LEDs were soldered on PCB to created lighting electronic products.

As we all know that LED will generate more heat compared with other electronic parts, which required the PCB to have a better ability for dissipating heat.

For these special requirements, metal core PCB are frequently used on LED PCB, especially aluminum core PCB.

This is because the aluminum PCB typically includes a thin layer of thermally conductive dielectric material that can transfer and dissipate the heat with much greater efficiency than a traditional rigid PCB.

Now SMD packaging type is the most widely used packaging form in LED applications.

In general, it’s limited for the light emitted from a single LED component.

So multiple LED components would be used for a single light fixture to achieve sufficient light.

Like other semiconductor devices, PCB is the best method to electrically connect the LED components.

And a PCB with LED components soldered is usually called as “LED PCB”

FQA

1. The advantages of LED PCB
With the electronic products is more and more smaller and thinner, making it popular to use LED PCB, and there are various advantages with using LED PCB as follows:

• Lightweight, low profile
• dimensional stability
• thermal expansion
• heat dissipation
• Lower cost backlit membrane switch
• Dust and moisture resistant
• Make it easy to integrate into complex interface assemblies
• Efficient low power consumption
• Available in a wide variety of sizes, colors, and intensities
• May be used in silver flex membrane switches and copper flex membrane switches.

There are two main reasons which make the LED PCB be popular in addition to increasing the light output of the fixture with integrating multiple LED components.

1. It’s easy to tune the color function by integrating the LED components with different color temperatures or different colors into the same PCB.
2. It can achieve the various light fixtures to meet different lighting requirements with the boards that have different shapes, sizes and materials.

2. SMD LEDs in your PCB
There are many devices including LEDs on a PCB using surface mounted components.
If the wires are quite thin, through hole components can bend slightly so that it looks cheap from the outside.
If making it right to solder the SMD LED, it will be rigid on the board. What’s more, it can also place the SMD LED behind a screen, and cheaper LED that use a bulb will stick out through the packaging.
So it can place the SMD LED behind a small screen in your packaging to be cleaner for your device.
As you know, many PCBs that contain LEDs are fabricated with multilayer FR-4 substrates, so you need to have a pattern of closely-spaced filled or plated through vias under each component so that it can transmit heat, as well as get to your power and ground layers.

If your LEDs have a small footprint and are surfaced mounted, it can use our vias.
Probably there will be a weak solder joint or even tombstoning because it doesn’t fill or plate over the vias and then solder can wick into the vias during assembly, so the reason why it’s better to just use SMD LEDs on an LED lighting array is that the problem with wicking.
A single LED with decent power output will not lead to damaging to your board because of undue thermal.
However, if you are going to have a system for lighting applications, it will need to suffer from a massive heat for the board that supports your LEDs, and make it hard to cool with traditional methods for the boards.
Because the individual LEDs are too small, you can’t really attach a heatsink anywhere, and a heatsink will block the emitted light anyways.
Because there is a great demand on thermal, the boards with a metal core are usually used in LED lighting applications due to their ability to dissipate a great deal of heat.
In general, aluminum is used for LED lighting applications as the metal core in PCB.
What’s more, aluminum is the most metal used as the core among all the possible metal core PCBs.
As well as copper and iron are used for metal core PCBs.