I recently ordered 3 surface mount LEDs (here is the link to the product page: https://www.digikey.com/en/products/detail/lumileds/L1C1-FRD1000000000/5872073?s=N4IgTCBcDaIDIEYDCCC0AxASgEQQBgMMJAF0BfIA), and I was wondering what kind of PCBs these LEDs connect to, and once connected how do they power on?
I have attached two images to show what the 3 LEDs really look like.
I don’t think there will be a “pre-made” board for easy integration in this case. The design of the product uses the same profile as a 0707 rectangular package (found on some surface mount resistors, capacitors, and inductors). Specifically, https://lumileds.com/wp-content/uploads/files/DS144-luxeon-c-color-line-datasheet.pdf (the datasheet), says on page 31 what the recommended pad design is. The left drawing shows the actual pad layout and the right diagram shows what the LED pads look like on the bottom. The first step is to either design a board yourself and submit it to Digi-Key’s PCB making program, or consult a PCB design manufacturer (there are a lot online). As for power, there are tons of ways to accomplish that. It all depends on what you prefer. If you want something small, batteries do work, you’d just need quite a few things: connectors for the battery, PCB traces to the battery, specifications on the battery (amp hours), a resistor for the LED (this depends on the voltage source), traces to the resistor and LED. The minimum you’d need for one LED is anything over 1.73V and it can take anywhere from 350mA to 700mA for proper function. If you are mounting multiple, a single battery may not cut it especially if you power them at the same time. The maximum current for three would be 2.1A total. You could use LED drivers too, but that is a whole different design and tends to take up more space. I simply suggest you look into different options and research what you think might be best.