ThunderClad 2A Sp

Super Low Loss and High Thermal Reliability Laminate and Prepreg
Core: TU-883A Sp; Prepreg: TU-883PA Sp

ThunderClad 2A Sp ( TU-883A Sp ) is a super low loss category material based on a high performance resin. This material is reinforced with low Dk woven glass fabric and designed with super low dielectric constant and dissipation factor resin system for high speed low loss, radio frequency and wireless applications. ThunderClad 2A Sp material is suitable for environmental protection lead free process and also compatible with FR-4 processes. ThunderClad 2A Sp laminates also exhibit excellent moisture resistance, improved CTE, superior chemical resistance, thermal stability and CAF resistance.

Main Applications
Radio frequency
Backplane, High performance computing
Line cards, Storage
Servers, Telecom, Base station
Office Routers
Key Features
Excellent electrical properties & MOT level
Dielectric constant less than 3.4
Dissipation factor less than 0.0020
Stable and flat Dk/Df performance over frequency and temperature
Compatible with modified FR-4 processes
Excellent moisture resistance and Lead Free reflow process compatible
Improved z-axis thermal expansion
Anti-CAF capability
Excellent through-hole and soldering reliability
Halogen Free
Property Typical Values
Tg (DMA) 240°C
Tg (TMA) 200°C
Td (TGA) 430°C
CTE z-axis (50 to 260 °C) 2.0%
T-260/ T288/ T300 > 60 min/ > 60 min/ > 60 min
Permittivity (RC 64%) @10GHz 3.25
Loss Tangent (RC 64%) @10GHz 0.0019
Industry Approvals
UL File Number : E189572
ANSI Grade : No-ANSI
Flammability Rating: 94V-0
Maximum Operating Temperature: 160°C
Standard Availability
Thickness: 0.002” [0.05mm] to 0.062” [1.58mm], available in sheet or panel form
Copper Foil Cladding: 1/3 to 3 oz for built-up & double sides
Prepregs: Available in roll or panel form
Glass Styles: 1035, 1078, 2113, 2116 and other prepreg grades are available upon request