IPC 2221 vs. 2152: The Truth About PCB Trace Current Ratings

Altium Develop gives your entire team real-time visibility into PCB designs, supply chain data, and manufacturing feedback — so thermal and power decisions never get made in isolation: https://www.altium.com/develop?utm_source=youtube&utm_medium=video&utm_campaign=ontrack-podcast&utm_content=ipc-2221-vs-2152-the-truth-about-pcb-trace-current-ratings   If you've ever sized a PCB trace using the IPC 2221 charts or relied on a 10°C rise rule of thumb, this episode of the OnTrack Podcast is essential viewing. Host Zach Peterson sits down with Mike Jouppi — the engineer behind IPC 2152 — to unpack decades of misunderstood standards, flawed assumptions, and what designers should actually be doing when it comes to conductor sizing and thermal management.   Mike walks through the critical differences between IPC 2221 and IPC 2152, explains why the internal trace data in 2221 was never derived from actual in-board testing, and reveals how adding copper planes to your design can dramatically increase power dissipation even while keeping temperature rise "within spec." If you're designing power-carrying traces without thinking in terms of power loss budgets, this conversation will change how you approach every future layout.   👉 Resources from this episode:  - High Power PCB Design: Pushing the Limits with Caleb Buck: https://youtu.be/aYi080GbV08 - Eric Bogatin on Signal Integrity, Oscilloscope Mastery & More: https://youtu.be/k88xgF8_jpk - Connect with Mike: https://www.linkedin.com/in/mike-jouppi-a6547034a/ - Dive Deeper into IPC 2221: https://resources.altium.com/p/ipc-2221-calculator-pcb-trace-current-and-heating - Explore IPC 2152: https://resources.altium.com/p/using-ipc-2152-calculator-designing-standards 💡 Stay Connected: Don't forget to like, comment, and subscribe for more in-depth tutorials and tips from @AltiumAcademy Share your thoughts and questions in the comments below!   👉 Subscribe for more: https://www.youtube.com/@AltiumAcademy?sub_confirmation=1   Don't forget to follow us on social to stay up-to-date on the latest Altium Academy content.   👉 Follow Altium on TikTok: https://www.tiktok.com/@altiumdesigner 👉 Follow Altium on Twitter: https://twitter.com/altium 👉 Follow Altium on Linkedin: https://www.linkedin.com/company/altium/ 👉 Follow Altium on Facebook: https://www.facebook.com/AltiumOfficial/   The Altium Academy is an online experience created to bring modern education to PCB Designers and Engineers all across the world. Here you can access a vast library of free training and educational content covering everything from basic design to advanced principles and step-by-step walkthroughs. Join industry legends as they share their career knowledge, review real-life design projects, or learn how to leverage one of Altium's leading design tools. No matter your level of experience, the Altium Academy can help you become a better Designer and Engineer!   About Altium LLC   Altium LLC (ASX:ALU), a global software company based in San Diego, California, is accelerating the pace of innovation through electronics. From individual inventors to multinational corporations, more PCB designers and engineers choose Altium software to design and realize electronics-based products.   #Altium #PCBDesign #IPC2152