PTFE 25N物性表


Arlon® 25N


Arlon 25N and 25FR are woven fiberglass reinforced, ceramic-filled composite materials engineered for use in microwave and RF multilayer printed circuit boards. Combining a non-polar thermoset resin system with a controlled-expansion ceramic filler, 25N and 25FR offer low dielectric constant and loss combined with a low Thermal Coefficient of Dielectric Constant (TCEr) for signal stability over a wide ambient temperature range.

Designed for use in multilayer packages, 25N and 25FR offer prepregs that are identical in chemical composition and physical properties with their copper clad laminates for a completely homogeneous finished package for optimal signal integrity.

The low dielectric constant (Er) and loss properties, low thermal coefficient of dielectric constant (TCEr), and excellent physical stability characteristics offered by 25N and 25FR materials make them ideal for wireless and digital applications, such as cellular telephones, down converters, low noise amplifiers, antennas and other advanced des ign circuits.

Processing for 25N and 25FR materials is consistent with processing for standard high temperature thermoset based printed circuit board
材料状态  • 已商用:当前有效  
供货地区  • 北美洲 • 欧洲 • 亚太地区
填料/增强材料 • 玻璃纤维增强材料 • 陶瓷纤维填料 
性能特点  • 尺寸稳定性良好 • 生产阶段,快 
用途   • 电气/电子应用领域  
形式   • 颗粒料  
物理性能    额定值单位制 测试方法
比重 2    1.70g/cm³ ASTM D792A
吸水率 3 (23°C, 24 hr)  0.090% Internal Method
挥发物 4   0.010% 
机械性能    额定值单位制 测试方法
弯曲强度 (23°C)  208MPa ASTM D790A
薄膜    额定值单位制 测试方法
抗张强度 - MD 2 (屈服)  111MPa ASTM D882A
剥离强度 5  875.6N/m Internal Method
热性能    额定值单位制 测试方法
线形膨胀系数 - 流动   
-- 6    0.000015cm/cm/°C Internal Method
-- 7    0.000052cm/cm/°C Internal Method
导热系数 (100°C)  0.45W/m/K ASTM E1225
电气性能    额定值单位制 测试方法
表面电阻率  4.4E+14ohm Internal Method
体积电阻率  2.0E+9ohm•cm Internal Method
介电常数 8 (23°C, 10.0 GHz)  3.38 Internal Method
耗散因数 8 (10.0 GHz)  0.0025 Internal Method
补充信息    额定值单位制 
Total Mass Loss 9 (125°C)  > 0.17% 
Water Vapor - Recovered  0.020% 
1 一般属性:这些不能被视为规格。   
2 23°C     
3 E1/105 + D24/23   
4 Maximum 0.10%   
5 After Thermal Stress   
6 Y-axis    
7 Z-axis    
8 C23/50    
9 < 10e-6 torr, Maximum 1.00%   
1 / 1