Most printed circuit boards are manufactured using glass-reinforced epoxy laminate as the substrate. While there are a wide variety of laminates available on the market, FR-4 is both versatile and well-accepted as a standard material for PCB manufacture. FR-4 functions well as an electrical insulator, and has a good strength-to-weight ratio, and is flame resistant.
The standard FR-4 material that is used in our products is a high temperature, high Td, low CTE 150Tg material.
If a higher Tg material is required, we do stock a 170Tg version of our standard FR-4 material as well, that can be selected in the quoting process. Note: The 170Tg FR-4 material has equivalency for electrical and mechanical properties with the popular Isola 370HR material, and functions very similarly. There is one documented physical difference, Isola's 370HR is listed as a 180Tg material.
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American Standard Circuits (ASC) and Sunstone Circuits have joined forces to become the ultimate PCB solution provider with over 50 years of combined industry experience. ASC excels in producing Ultra HDI, rigid, metal-backed/core, RF/microwave, flex, and rigid-flex PCBs for diverse industries, while Sunstone Circuits is known for quick-turn, high-quality PCBs and exceptional customer support. This strategic alliance combines ASC's certifications and expertise with Sunstone's commitment to excellence, setting a new standard in PCB manufacturing. Together, we provide full scale solutions for engineers, from design to prototype to large-scale production.