High frequency ptfe copper clad laminate sheet for circuit PCB board(F4BK225)wangling insulating material factorymicrowave pcb
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- Supplier: Taizhou Wangling Insulation Material Factory
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Product Overview
Description
PTFE woven glass fabric copper clad laminates with high permittivity(F4BK225)
1.Description:
F4BK-1/2 is laminated by laying up of woven glass fabric with Ptfe resin, according to the scientific formulation and strict technology process. This product takes some advantages in the electrical performance(wider range of dielectric constant).
Product code des
2.Specifications
Types | Original side(Copper clad laminate without copper foil on both sides) |
Dimensions (inch) | 11.8''x9.8''(300x250mm), 13.8''x15''(350x380mm), 17.3''x21.7''(440x550mm), 18''x24''(460x610mm), 19.7''x19.7''(500x500mm), 19.7''x23.6''(500x600mm), |
Special dimension can be customized according to customer’s requirement. | |
Dielectric constant (@ 10GHz)
| 2.25±0.05 |
| Special dielectric constant can be customized. | |
Thickness and Tolerance(mm) | 1.0±0.05, 1.5±0.05, 2.0±0.075, 3.0±0.09, 4.0±0.1, 5.0±0.1 |
The thickness includes two-sided copper foil. | |
For special dimension, customized lamination is available. | |
Dissipation factor (@ 10GHz) | Test condition: 10GHz ≤1.5×10-3 |
Coefficient of thermal expansion(ppm/℃) (Typical) X Axis Y Axis Z Axis |
Condition: -55℃ to 288℃ <25 <34 <240 |
Shrinkage Factor (%) | Condition: 2 hours in boiling water < 0.0002 |
Surface Resistivity ( M·Ω) | Condition: normal state(500V CD) ≥3×104 |
Volume Resistivity (MΩ.cm) | Condition: normal state ≥2×106 |
Surface dielectric strength | Condition: normal state Unit: d=1mm(Kv/mm) ≥1.2 |
Workshop
3.Technical index:
3.1 Mechanical strength & Chemical property 
3.2 Electrical property
Product Application
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