Why Solder Joints Crack Over Time on PCBs? Causes Explained! скачать в хорошем качестве

Why Solder Joints Crack Over Time on PCBs? Causes Explained!

Why solder joints crack over time on PCBs? This video explains the real causes of solder joint cracking in electronic circuit boards, including vibration, component weight, thermal expansion, current load, solder alloy quality, flux, and soldering temperature. Cracked solder joints are one of the most common reasons for long-term PCB failures — especially on through-hole DIP components. A circuit board can work reliably for years and then suddenly fail due to microcracks formed in solder joints over time. In this video, I explain why solder joints crack, how mechanical stress, vibrations, temperature cycling, electrical load, and material mismatch interact with each other, and what engineers, manufacturers, and repair technicians should consider during PCB design, assembly, and soldering. The video covers: Vibrations and mechanical fatigue; Component weight and miniaturization; Current and high voltage stress; Soldering quality and solder alloy; Soldering flux behavior and soldering temperature; Thermal expansion mismatch in metals. This video is intended for electronics engineers, PCB designers, manufacturers, and repair specialists, who want to better understand solder joint reliability and long-term failure mechanisms. 📺 LINKS: • Soldering Temperatures –    • Soldering temperature for electronics PCBs...   • Soldering Iron Tip Temperature –    • Soldering Iron Tip Temperature — Mistakes ...   • What is Soldering Flux –    • Soldering Flux for Electronics PCB   💪 Instagram —   / diamond.flux.soldering   💪 Telegram — https://t.me/DmitryKh2 💪 Patreon —   / electronicspcb   💪 Buy Soldering Flux —https://express-24.io/ TIMECODES 00:00 Cracked solder joints on PCBs introduction 00:26 Vibrations and mechanical fatigue 01:08 Component weight and miniaturization 01:43 Current and high voltage effects 02:22 Soldering quality and solder alloy 02:55 Flux and soldering temperature 03:26 Thermal Metals expansion and temperature cycling 04:22 Solder Crack summary 04:49 Conclusions #soldering #joint #cracked