FR-4 Copper-Free Laminates
FR-4 Copper-Free Laminated sheet
Color: Nature / Yellow
Thickness: 0.05–3.5mm
Copper Cladding (μm):12μm / 18μm / 35μm / 70μm / 105μm
Heat Resistance : Class B (130° C)
Flammability:UL94-V0
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Features
Excellent dimensional stability
Excellent heat resistance and mechanical properties
IPC-4101C/21 specification is applicable
General Properties
| Test Item | Unit | Test Condition | Specification (IPC-4101C) |
| Peel Strength (1 oz.) | N/mm | 125°C | ≥0.7 |
| Float 288°C/10 Sec | ≥1.05 | ||
| Thermal Stress | Sec | Float 288°C/unetched | ≥10 |
| Bow / Twist | % | A | ≤1.0 |
| Flexural Strength | N/mm² | Warp | ≥415 |
| Fill | ≥345 | ||
| Flammability | Rating | UL94 | UL94 V-0 |
| Glass Transition (Tg) | °C | E-2/105 (DSC) | ≥130 |
| Surface Resistivity | MΩ | C-96/35/90 | ≥1.0×10⁴ |
| Volume Resistivity | MΩ·cm | C-96/35/90 | ≥1.0×10⁶ |
| Dielectric Constant | – | Etched/@1 MHZ | ≤5.4 |
| Loss Tangent | – | Etched/@1MHZ | ≤0.035 |
| Arc Resistance | Sec | D-48/50+D-0.5/23 | ≥60 |
| Moisture Absorption | % | D-24/23 | ≤0.35 (min 0.51mm) |
| D-24/23 | ≤0.80 (max 0.51mm) | ||
| Z-Axis Expansion | ppm/°C | E-2/105 TMA | – |
| Comparative Tracking Index | V | Etched/0.1% NH4CL | ≥150 |
Application
Computer, VCR, Instrument, Communication equipment etc.
Purchasing Information
| Base Color | Thickness (mm) | Copper Cladding (μm) | Regular Size (mm) |
| Nature / Yellow | 0.05–3.5 | 12 / 18 / 35 / 70 / 105 | 915×1220 (36″×48″)1020×1220 (40″×48″) |
Warehouse &packaging
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