5 soldering mistakes that destroy your PCBs (and how to fix them)
Most beginners burn through boards before they ever finish a project. Here are the 5 most common soldering mistakes I see:
1. Too much heat, too long
Holding the iron on a pad for more than 3 seconds will lift traces. Get in, make the joint, get out.
2. Cold joints
If it looks dull and grainy, it's not making proper contact. Reheat, add a tiny bit of fresh solder, and let it flow.
3. Wrong tip size
Using a chisel tip on 0402 components is like using a sledgehammer on a nail. Match the tip to the job.
4. No flux
Flux isn't optional. It cleans oxidation and helps solder flow. Use it every time.
5. Cheap solder
Bargain solder has inconsistent flux cores and impurities. Spend the extra $5 — your joints will thank you.
We built the VoltEdge Smart Solder Pen specifically to eliminate problems #1 and #3 — adjustable temp control and swappable precision tips.
What's the worst soldering disaster you've had? Drop it below. 👇
