PTFE Teflon PCB to meet the demand for faster communications. Please refer Teflon PCB Applications. Teflon materials are valued for their suitability in high-frequency electronic applications. At Microwave RF PCB, FR-4 Material (approx. 4.5) dielectric constant o is often too high, its significant signal loss during transmission across the printed circuit board. Luckly, Teflon materials boast dielectric constant values as low as 3.5 or less, it is ideal material for overcoming the high-speed limitations of FR-4. The most common of these Teflon PCB materials were developed by Rogers. In addition to a reduction in dielectric constant, these materials also offer very impressive thermal characteristics for High Temperature PCB applications, reaching Tg values as high as 280°C. A datasheet comparison is shown below for two different PTFE teflon pcb materials, RO4003C and RO4350B.
PTFE teflon pcb
|Property||Typical Value||Direction||Units||Condition||Test Method|
|Dielectric Constant, sf Process||3.38 ± 0.05||3.48 ± 0.05||Z||—||10 GHz/23°C||IPC-TM-650 126.96.36.199 Clamped Stripline|
|(1> Dielectric Constant, s Design||3.55||3.66||Z||—||8 to 40 GHz||Differential Phase Length Method|
|Dissipation Factor tan, 8||0.0027 0.0021||0.0037 0.0031||z||—||10 GHz/23°C 2.5 GHz/23°C||IPC-TM-650 188.8.131.52|
|Thermal Coefficient of zt||+40||+50||z||ppm/°C||-50°C to 150°C||IPC-TM-650 184.108.40.206|
|Volume Resistivity||1.7 X 1010||1.2 X 1010||MQ・cm||COND A||IPC-TM-650 220.127.116.11|
|Surface Resistivity||4.2 X 10°||5.7 X 10°||MQ||COND A||IPC-TM-650 18.104.22.168|
|Electrical Strength||31.2 (780)||31.2 (780)||z||KV/mm (V/mil)||0.51mm (0.020M)||IPC-TM-650 22.214.171.124|
|Tensile Modulus||19,650 (2,850) 19,450 (2,821)||16,767 (2,432) 14,153,(2,053)||X Y||MPa (ksi)||RT||ASTM D638|
|Tensile Strength||139 (20.2) 100 (14.5)||203 (29.5) 130 (18.9)||X Y||MPa (ksi)||RT||ASTM D638|
|Flexural Strength||276 (40)||255 (37)||MPa (kpsi)||IPC-TM-650 2.4.4|
|Dimensional Stability||<0.3||<0.5||X,Y||mm/m (mils/inch)||after etch +E2/150°C||IPC-TM-650 2.4.39A|
|Coefficient of Thermal Expansion||11 14 46||10 12 32||X Y Z||ppm/°C||-55 to 288°C||IPC-TM-650 2.4.41|
RAYPCB specialise in PTFE (Teflon) PCB Manufacturing, PTFE material is widely used in high frequency PCB , We accept teflon PCB Prototype order with quick turn delivery, All Prototype PCB at industry standard quality of course.
RayMing is experienced in production of various high-frequency circuit boards. For most of RF PCB materials (such as: Ceramic PCB, Teflon PCB, Rogers PCB, Taconic PCB, Arlon PCB), we have sufficient inventory to ensure fast delivery.