FR4 Isola 370HR PCB

FR4 Isola 370hr PCB is a PCB made of high performance 180 ° C glass transition temperature (TG) FR-4 system, which is suitable for multilayer printed circuit board (PWB) applications requiring maximum thermal performance and reliability. The 370hr laminate and prepreg products are made from a unique high-performance multifunctional epoxy resin reinforced with electronic grade (E-glass) glass fiber fabric.

fr4 Isola 370HR PCB

fr4 Isola 370HR PCB

Compared with the traditional FR-4, the system provides improved thermal performance and lower expansion rate, while maintaining the processability of FR-4. In addition to this superior thermal performance, its mechanical, chemical and moisture resistance are equal to or better than the traditional FR-4 materials.

The 370hr system also has laser fluorescence and UV blocking functions, which can achieve maximum compatibility with automatic optical inspection (AOI) system, optical positioning system and optical imaging solder mask imaging. 370hr has been proved to be the best product design in the field of sequential bonding.

FR4 Isola 370HR PCB Features:

 High Thermal Performance
Tg: 180°C (DSC)
Td: 340°C (TGA @ 5% wt loss)
Low CTE for reliability
• T260: 60 minutes
• T288: 30 minutes
• RoHS Compliant

• UV Blocking and AOI Fluorescence
High throughput and accuracy during PCB
fabrication and assembly
• CAF Resistant
• Superior Processing
Closest to conventional FR-4 processing
• Core Material Standard Availability
Thickness: 0.002″ (0.05 mm) to 0.125″
(3.2 mm)
Available in full size sheet or panel form
 Prepreg Standard Availability
Roll or panel form
Tooling of prepreg panels available
• Copper Foil Type Availability
Standard HTE Grade 3
RTF (Reverse Treat Foil)
• Copper Weights
½, 1 and 2 oz (18, 35 and 70 µm) available
Heavier copper available upon request
Thinner copper foil available upon request
• Glass Fabric Availability
Standard E-glass
Square weave glass fabric available
Spread glass fabric available
 Industry Approvals
IPC-4101D WAM1 /98 /99 /101 /126
(IPC-4101C /21 /24 /26 /97 /98 /99 /101 /126)
UL – File Number E41625 as PCL-FR-370HR
Qualified to UL’s MCIL Program


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