254
4.3 Dk , 0.02 Df
155 Tg , 340 Td
/21 /24
254 is a high performance 150°C glass transition temperature (Tg) FR-4 system for multilayer printed wiring board (PWB) applications where increased thermal performance and reliability are required.
254 laminate and prepreg products are manufactured with a unique high performance multifunctional epoxy resin, reinforced with electrical grade (E-glass) glass fabric. This system provides improved thermal performance in comparison to traditional FR-4 while retaining FR-4 processibility.
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 254 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
High Tg — 150°C (Typical Tg)
- Superior performance through multiple thermal
- Excursions resistance to measling
- Extended capabilities
UV Blocking and AOI Compatible
- Increased throughput and accuracy
- Compatible with all AOI equipment
FR-4 System
- Processes as a standard FR-4
Industry Approvals
- IPC-4101C /21 /24
- UL Recognized – FR-4, File Number E45456
- Qualified to UL’s MCIL Program
Standard Availability
- Thickness: 0.002″ [.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
Glass Styles
- Available in most standards