Electronics > Projects, Designs, and Technical Stuff
An alternative method for soldering through-hole components
intabits:
Prompted by seeing one too many YouTube videos that display poor soldering technique of leaded through-hole parts, I've made a
video describing the way I was taught to solder them.
I believe this method to be far superior to what I saw in those other videos:-
* Faster due to less tool handling, and streamlined operations.
* Better contact between component lead and PCB copper.
* No exposed cut lead that can rust or oxidize.
* A smoother result, with no sharp points to damage wires or other nearby parts.
* A less stressed solder joint, improving reliability.
GeorgeOfTheJungle:
No no, that's not a good idea, and you don't know because you can't see it if the solder is good. Even if it's good, it's worse than the normal way because the soldered surface is much less, only a tiny spot. I don't like it.
Phoenix:
This method might be OK for single layer (not plated holes) for resistors and capacitors. But from what I can see getting a good quality join is no easier than keeping straight leads. It also looks like with the leads folded it might be harder to get 100% coverage of the hole, especially
IMO better off focusing on the basic ideas like properly wet joins, good fillet, correct amount of solder, solder heat bridges and where to apply the iron and the solder. Rather than pedantry like exposed tips of cut components.
Sent from my G8441 using Tapatalk
wasyoungonce:
In old NASA stds (military) soldering it was preferable this way. Fit component bend leg to lay flat on the pad/trace then cut and solder. But the pads and traces were larger in those days allowing the leg to form a nice solder fillet. These days boards pads and traces are in general much smaller. That said I rarely saw a PCB with components fitted like this.
I understand what your saying about ingress of corrosion etc. Usually I conformal spray or brush coat after inspection and cleaning. It’s be more beneficial if users spent more time inspecting their solder work post cleaning under a good eye loupe or camera. The amount of crap joins I’ve done or found this was is incredible.
All that said I usually solder and cut enduring the cut is above the solder fillet.
Edit: if you have to remove a component that has had its legs flat on the pad/traces..... you’ll curse the day.
GeorgeOfTheJungle:
--- Quote from: wasyoungonce on March 14, 2019, 09:43:26 am ---Edit: if you have to remove a component that has had its legs flat on the pad/traces..... you’ll curse the day.
--- End quote ---
Hear, hear!
+1
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