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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Sunstone Circuits® is the established leader in providing innovative and reliable printed circuit board (PCB) solutions for the electronic design industry. With over 40 years of experience in delivering high quality, on-time PCB prototypes, Sunstone Circuits is committed to improving the prototyping through production processes for the design engineer from quote to delivery. With Around the Clock support, Sunstone Circuits provides unparalleled customer service and leads the industry with a real On-Time Guarantee that is the first of its kind.