Blog - JingHong

Phenolic Series

How to Identify Genuine High-Quality Phenolic Paper Sheet?

Caroline Jia

Oct 11, 2025

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Glass Fiber Series

Compare FR4 vs G10 Reliability and Cost Tradeoffs

When it comes to selecting materials for printed circuit boards (PCBs) and other electrical applications, FR4 sheet and G10 sheet are two popular choices that often come under consideration. Both materials offer unique advantages and trade-offs in terms of reliability and cost. FR4, known for its flame-retardant properties, generally provides better fire resistance and is more cost-effective. On the other hand, G10 offers superior mechanical strength and thermal stability, making it suitable for high-stress environments. The choice between FR4 and G10 ultimately depends on the specific requirements of your application, including budget constraints, performance needs, and environmental factors. This comprehensive comparison will help you make an informed decision by exploring the nuances of both materials.

James Yang

Oct 11, 2025

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Industry standards

How to Evaluate Insulation Sheet Suppliers for Long-Term Partnerships?

James Yang

Oct 11, 2025

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Phenolic Series

How to Machine and Finish NEMA CE Sheets Safely?

Caroline Jia

Oct 10, 2025

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Glass Fiber Series

Custom G10 Epoxy Sheet Solutions for Industrial Clients

James Yang

Oct 10, 2025

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Glass Fiber Series

How FR4 Improvements Affect High-Frequency PCB Design?

James Yang

Oct 10, 2025

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Phenolic Series

Which Certifications Matter for Electrical-Grade Phenolic Sheets

Caroline Jia

Oct 10, 2025

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Glass Fiber Series

Recommended FR4 Specs for Harsh Industrial Environments

James Yang

Oct 10, 2025

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Glass Fiber Series

Key Reliability Metrics for FR4 in High-Temperature Applications

FR4 sheets, renowned for their exceptional thermal and electrical properties, play a crucial role in high-temperature applications across various industries. When evaluating the reliability of FR4 in elevated temperature environments, several key metrics come into focus. These include thermal endurance, dielectric strength retention, dimensional stability, and flame retardancy. The glass transition temperature (Tg) serves as a critical benchmark, typically ranging from 130°C to 180°C for standard FR4 materials. Time to delamination (T260 and T288) and decomposition temperature (Td) further quantify the material's ability to withstand prolonged exposure to high temperatures. Additionally, the coefficient of thermal expansion (CTE) and its consistency across different temperature ranges significantly impact the long-term reliability of FR4-based components in high-temperature scenarios.

James Yang

Oct 10, 2025

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