The Arlon PCB 85N is a high-performance, pure polyimide multilayer printed circuit board designed to withstand extreme thermal environments. Featuring a glass transition temperature ($T_g$) of 250°C, this substrate prevents resin cracking and lift-off during severe thermal cycling. It is engineered for engineers and procurement managers who require stable electrical and mechanical properties in critical aerospace, defence, and high-temperature industrial electronics.
Key Features of Arlon High Tg PCB 85N
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Extreme Thermal Stability: $T_g$ of 250°C and a decomposition temperature ($T_d$) of 407°C ensure survival in continuous high-temperature environments.
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Low Z-Axis Expansion: A thermal expansion coefficient ($CTE$) of 55 ppm/°C below $T_g$ minimizes stress on plated through-holes (PTH) during thermal shock.
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Pure Polyimide Resin Chemistry: Formulated without flame retardants or secondary resin modifiers to prevent thermal degradation and resin recession.
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Compliance Standards: Fabricated to meet IPC-6012 Class 3 and IPC-4101/41 specifications for high-reliability military and aerospace electronic hardware.
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Robust Multilayer Processing: Compatible with complex sequential lamination cycles for high-density interconnect (HDI) designs.
Applications
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Aerospace and Avionics: Engine control systems, flight telemetry units, and cockpit power supplies.
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Military Hardware: Missile guidance systems, radar installations, and ruggedized field communication equipment.
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Down-Hole Drilling: Oil and gas exploration sensors and subterranean logging-while-drilling (LWD) tools.
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Under-Hood Automotive: High-power electronic braking systems and exhaust monitoring sensors.
Why Choose PCBSYNC
PCBSYNC is a professional PCB fabrication, PCBA, and EMS manufacturer delivering precision-built electronics for aerospace, medical, automotive, industrial, and smart energy applications. We handle everything from rapid prototyping to mass production — including rigid, flexible, and rigid-flex PCBs, full turnkey assembly, component sourcing, AOI and X-ray inspection, and OEM/ODM support. Reliable boards. Consistent quality. From prototype to production — PCBSYNC.
Request a Technical Consultation
Contact the engineering team at PCBSYNC today to discuss your layer stackup requirements, minimum trace/space design rules, and surface finish requirements for your next Arlon 85N project.
