


Supporting Literature
Tech Docs
Tech Bulletin Lead Free Procedures
Processing Guide
250HR Process Guide
MSDS
PCL 250HR Prepreg MSDS
PCL 25HR laminate MSDS
Product Bulletin
250 HR
FR-250HR is a high performance 150C glass transition temperature (Tg) FR-4 system for multilayer printed wiring board (PWB) applications where maximum thermal performance and reliability are required. FR-250HR laminate and prepreg products are manufactured with a unique high performance multifunctional epoxy resin, reinforced with electrical grade (Eglass) glass fabric. This system provides improved thermal performance and low expansion rates in comparison to traditional FR-4 while retaining FR-4 processability. In addition to this superior thermal performance the mechanical, chemical and moisture resistance properties all equal or exceed the performance of traditional FR-4 materials. The FR-250HR system is also laser fluorescing and UV blocking for maximum compatibility with automated optical inspection systems (AOI), optical positioning systems and photoimagable soldermask imaging.