Tired of wasting time & money desoldering components inefficiently? Watch till the end!
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In this video I will show how to desolder electronic components from old circuit boards and 7 desoldering techniques to save you time and money! Desoldering can be a difficult task, but it doesn't have to be! Whether if you want to desolder capacitors, relays, ICs or switches, this video is for you!
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Hi! Welcome to my channel! My name is Yonatan. I'm 15 years old, and I love making and inventing stuff!
I focus on making quick videos about homemade workshop tools, woodworking, metalworking, electronics projects, all sorts of clever tips and tricks, and more! If you enjoy watching my videos, make sure to subscribe so you don't miss any of my future videos!
Yonatan24, 2018 - 15 year old, sick with DIY-itis!
#Soldering #Desoldering
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Long version:
How to Desolder Electronic Components from Circuit Boards - 7 Tips & Tricks - Free Parts for Projects!
There are many reasons for why you'd want to desolder components from old PCBs (circuit boards). Need those old, high-quality components? Can't afford new components? Don't have time to wait for components to arrive in the mail?
Some older PCBs may contain Pb in the solder, Always make sure you are aware of all of the dangers incorporated with any type of electronics work, and always wash your hands after handling any type of electronic component.
This, in my opinion, is the best, cheapest soldering iron. Why? (Read the Instructable)
Circuit board holder- I bought a cheap aluminum vise on eBay, cut it in half, and glued it onto a microwave transformer so I can use it to clamp circuit boards (or anything else) horizontally.
Many times, there isn't enough solder on a circuit board for the soldering iron tip to make contact with. The solder just won't melt, making it really difficult to remove a component. Add a bit of solder, and you'll see for yourself how much of a difference it makes! I also like adding extra solder to some solder joints, because the more solder you add, the longer the glob of liquid solder will stay molten, and the more time you'll have for prying out the component. This can be a life saver when trying to desolder components with many /leads, relays especially.
This trick works the best for through-hole components that are mounted flush with the PCB, especially electrolytic capacitors.
I can use a blowtorch to desolder huge capacitors that might take me a minute or two (for one capacitor) in a few seconds. I also had one circuit board that had dozens of the exact same relay, and instead of having it be repetitive and boring, it was repetitive but very fast. I had all of them desoldered in only a few minutes.
But if you have components with really thick leads such as the connector shown above, a big transistor/IC, or one of those diodes with massively thick leads, desoldering can damage them, if it's even possible at all.This is where a rotary tool comes to mind!
I used my 18,000 RPM Flex-shaft rotary tool with cheap cutoff wheels.
Just make sure to not cut into the PCB, and cut off only the leads (metal wires) of electronic components, without cutting into the solder joint.
Your last resort? Break it!
Large heatsinks are pretty much impossible to desolder, the solder never gets hot enough to melt because the heatsink absorbs all of the heat immediately. If you want those free heatsinks... You'll have to break the PCB!
And in case you're wondering those PCB's are from the electronic devices I took apart in the last 6 months. I think I got around 1kg of components, not bad!
Lastly, if you are a beginner at soldering, I would actually recommend learning to desolder. It's way easier as you don't have to hold any parts steadily, don't have to worry about overheating the PCB or part, and you also get free components. It's great for practicing.
