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LED selection for a ceiling fixture, SMT assembly (JLCPCB Extended Parts)
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leif 3 years ago
Hi! I want to design a PCB to replace the light fixture in my ceiling fans, and I'm having trouble choosing what LEDs to use. I'm looking for RGB + Warm White, and because the board will be inside a diffuser, I think it would be more effective to use individual Red, Green, Blue and Warm White LEDs, rather than RGB LEDs. But, I'm having trouble finding appropriate parts at JLCPCB. I've tried looking for size 5050, 5730 and 3528, but I was unable to find Red, Green, Blue from the same manufacturer and the same size! It may be my own fault, or a problem with the search engine, or the data entry. I know previously I have had dive all the way into the data sheet to find the _color_ of LEDs in the library, the color was completely missing from the description of most LEDs. This time I spent a good hour looking around but I have just not been able to complete the mission. So, I'm asking for help here. Can anyone recommend appropriate R, G, B LEDs to use for my application?
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andyfierman 3 years ago
Have you tried searching LCSC.com - which may have better filters - and then using the LCSC part number to search the JLCPCB library?
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leif 3 years ago
Thanks, Andy! I had _not_ tried that. That worked better! [<span data-v-3b16b0e0="">C516141</span>](https://lcsc.com/product-detail/Light-Emitting-Diodes-LED_HONGLITRONIC-Hongli-Zhihui-HONGLITRONIC-HL-A-3528S35FC-S1-13HL_C516141.html), [<span data-v-3b16b0e0="">C51614</span>](https://lcsc.com/product-detail/Light-Emitting-Diodes-LED_HONGLITRONIC-Hongli-Zhihui-HONGLITRONIC-HL-A-3528S35FC-S1-13HL_C516141.html)<span data-v-3b16b0e0="">2 and [<span data-v-3b16b0e0="">C51614</span>](https://lcsc.com/product-detail/Light-Emitting-Diodes-LED_HONGLITRONIC-Hongli-Zhihui-HONGLITRONIC-HL-A-3528S35FC-S1-13HL_C516141.html)<span data-v-3b16b0e0="">3 seem like they might fit the bill.</span></span><br> <br> <span data-v-3b16b0e0=""><span data-v-3b16b0e0="">**But...** When I search for these three components in the EasyEDA library,</span></span>[<span data-v-3b16b0e0="">C51614</span>](https://lcsc.com/product-detail/Light-Emitting-Diodes-LED_HONGLITRONIC-Hongli-Zhihui-HONGLITRONIC-HL-A-3528H203BC-S1-13HL_C516143.html)<span data-v-3b16b0e0="">2 and</span> [<span data-v-3b16b0e0="">C516143</span>](https://lcsc.com/product-detail/Light-Emitting-Diodes-LED_HONGLITRONIC-Hongli-Zhihui-HONGLITRONIC-HL-A-3528H203BC-S1-13HL_C516143.html) show up just fine, but [<span data-v-3b16b0e0="">C51614</span>](https://lcsc.com/product-detail/Light-Emitting-Diodes-LED_HONGLITRONIC-Hongli-Zhihui-HONGLITRONIC-HL-A-3528H203BC-S1-13HL_C516143.html)<span data-v-3b16b0e0="">1 is not found!</span><br> <br> <span data-v-3b16b0e0=""></span>The **Go to LCSC** button works, but can I really still order a board with this part if it's not in JLCPCB's system? <span data-v-3b16b0e0=""><span data-v-3b16b0e0=""></span></span>
Reply
andyfierman 3 years ago
You can order the board for JLCPCB Assembly but you'll have to order the other parts from LCSC fit them yourself. You could try asking JLCPCB to add them as it would make sense to have a full set of rgb leds in whatever style they are.
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andyfierman 3 years ago
When you upload the BOM from the schematic to JLCPCB, don't tick the parts not supplied directly from JLCPCB. Then it's clear that they are not parts that you expect them to supply and fit.
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leif 3 years ago
I'm definitely aiming for them to be fully assembled from JLCPCB, _not_ soldering them myself. :) I agree that it would make sense for them to have the full set. I'll e-mail them and ask. Thanks, Andy!
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