High‑Speed PCB Materials: FR‑4 vs Megtron 6 vs Rogers 4000 vs PTFE Compared
Choosing the right laminate is one of the most consequential decisions in any high‑speed PCB project. The wrong material can introduce excess insertion loss, unstable impedance, or costly manufacturing complications — even when the layout is flawless. This guide compares four widely used high‑speed PCB material families — standard and enhanced FR‑4, Panasonic Megtron 6, Rogers 4000 series, and PTFE‑based laminates — to help engineers and procurement teams make informed decisions based on signal performance, manufacturability, and total cost.
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