FR408HR
3.68 Dk , 0.0092 Df
180 Tg , 360 Td
/121 /124 /129 /21 /24 /26 /28
FR408HR is a proprietary high-performance 230°C (DMA) glass transition temperature (Tg) FR-4 system for multilayer printed wiring board (PWB) applications where maximum thermal performance and reliability are required.
FR408HR laminate and prepreg products are manufactured with Isola’s patentable high-performance, multifunctional resin system, reinforced with electrical grade (E-glass) glass fabric. This system delivers a 30% improvement in Z,axis expansion and offers 25% more electrical bandwidth (lower loss) than competitive products in this space. When these properties are coupled with its superior moisture resistance at reflow, you have a product that bridges the gap from both a thermal and electrical perspective.
The 408HR system is also laser fluorescing and UV blocking for maximum compatibility with automated optical inspection systems (AOI), optical positioning systems and photoimagable solder-mask imaging.
Key Features
Industry Approvals
- IPC-4101C /21/24/26/28/121/124/129
- UL Recognized – FR-4, File Number E41625
- Qualified to UL’s MCIL Program
High Thermal Performance
- Tg of 200°C (DSC), 230°C (DMA) (Base Laminate)
- Low CTE for reliability
- Lead-free compatible and RoHS compliant
- UV Blocking and AOI Fluorescence
- High throughput and accuracy during PCB fabrication and assembly
Superior Processing
- Closest to conventional FR-4 processing of all high speed materials
Standard Availability
- Thickness: 0.002” ZBC [.05 mm] to 0.093″ [2.4 mm]
- Available in sheet or panel form
- Copper Foil Cladding: Grade 3 (HTE), ½, 1 and 2 oz. Foil Options: Reverse treat
- Prepregs: Available in roll or panel form