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When Current Exceeds 10A Why Trace Widening Fails and a Heavy Copper PCB is Mandatory

Why Trace Widening Fails and a Heavy Copper PCB is Mandatory

For power design engineers pushing the limits in electric vehicles, server racks, or industrial drives, a common and costly assumption persists: to carry more current, simply widen the copper trace. However, when currents surpass the 10A threshold, this approach not only fails but can actively undermine reliability. This article moves beyond basic IPC-2152 charts to…

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pcb stackup calculator

PCB Stackup Calculator and Manufacturing Precision: Ensuring “Calculation Equals Reality” in Impedance Control

Every high-speed digital or RF engineer has experienced this frustration: your PCB stackup calculator shows perfect 50Ω impedance, but the physical board measures 42Ω or 58Ω. This gap between calculation and reality isn’t just a minor discrepancy—it’s a direct threat to signal integrity, system performance, and project timelines. The problem isn’t your calculator; it’s the…

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How to Test PCB Board with a Multimeter

How to Test PCB Board with a Multimeter: Jerico’s Expert Guide for High-Reliability Troubleshooting

For engineers and quality technicians, a multimeter is the first line of defense against PCB failures. Yet what separates basic functionality verification from professional-grade reliability testing? This comprehensive guide moves beyond simple continuity checks to provide systematic methodologies for identifying manufacturing defects in complex boards. Whether you’re debugging a new prototype or validating production units,…

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Plated Through Hole vs Via

Plated Through Hole vs Via: The Jerico Expert Guide to Optimizing PCB Reliability, Current & Signal Integrity

In PCB design, the humble via and plated through hole (PTH) are foundational elements, yet their misapplication is a leading cause of field failures, thermal issues, and signal degradation. While often used interchangeably, PTHs and vias serve distinct electrical, mechanical, and thermal purposes. Confusing them leads to inefficient designs, inflated costs, and compromised reliability. This…

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High-Frequency PCB Design and Application

High-Frequency PCB Design and Application: Addressing Signal Integrity Challenges in 5G, Radar, and High-Speed Data Transmission

For electronics engineers and procurement managers pushing the boundaries of 5G, automotive radar, and high-speed computing, the printed circuit board (PCB) is no longer a passive component. At gigahertz frequencies, it becomes a critical active element that can make or break system performance. Signal degradation, impedance mismatches, and thermal issues inherent in standard materials pose…

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