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Soldering SMT RGB 5050 to 5050 LED breakout PCB
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

Soldering SMT RGB 5050 to 5050 LED breakout PCB

by trevorsmedley on Mon Jun 12, 2017 11:02 am

Hi,

I want to make about 30 5050 RGB breakout boards using these two products:
https://www.adafruit.com/product/619
https://www.adafruit.com/product/1762

Is it possible/practical to build these using a "skillet" reflow technique as described here: https://blog.adafruit.com/2009/03/09/so ... rying-pan/

Or are these breakout boards not suitable for this sort of approach. Any tips, warnings, or any other information would be greatly appreciated -- I have never worked with SMD devices before. Or if anyone has suggestions for other products or approaches...

Thanks, Trevor

P.S. I know that Neopixels come as breakouts already, but they won't work for me. I don't want the drivers or anything -- just 30 RGB LEDs without a common cathode or anode. I have only been able to find these in SMD, and the two products above are the best option I have found, after considerable searching.

trevorsmedley
 
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Re: Soldering SMT RGB 5050 to 5050 LED breakout PCB

by adafruit_support_bill on Mon Jun 12, 2017 11:23 am

Although it is "possible", it may not be practical. LED chips are a bit more finicky to deal with than most and require controlled storage and careful tuning of the reflow process.

In particular, LED chips are moisture permeable and absorbed moisture can cause damage during reflow. Reels of chips are shipped from the manufacturer in sealed packages with desiccant capsules and moisture indicators. For production boards, we do not open these until the start of a production run.

When re-packaging for small quantity sales, obviously the same storage conditions are not maintained. That is one reason why we recommend hand-soldering for these.

adafruit_support_bill
 
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Please be positive and constructive with your questions and comments.