ThunderClad 2A

Very Low Loss and High Thermal Reliability Laminate and Prepreg
Core: TU-883A; Prepreg: TU-883P A

ThunderClad 2A ( TU-883A ) is a very low loss category material based on a high performance modified FR-4 resin. This material is reinforced with regular woven E-glass and designed with very low dielectric constant and dissipation factor resin system for high speed low loss, radio frequency and wireless applications. ThunderClad 2A material is suitable for environmental protection lead free process and also compatible with FR-4 processes. ThunderClad 2A 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 3.9
Dissipation factor less than 0.0040
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 63%) @10GHz 3.64
Loss Tangent (RC 63%) @10GHz 0.0036
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 0.030” [0.76mm], available in sheet or panel form
Copper Foil Cladding: 1/3 to 2 oz for built-up & double sides
Prepregs: Available in roll or panel form
Glass Styles: 106, 1078, 3313, 2116 and other prepreg grades are available upon request