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WL-CT350 is made of organic polymer, ceramic filler and glass fiber cloth through scientific preparation and strict process. It is a thermosetting material, and its performance is comparable to similar foreign products. It is suitable for 4G, 5G, base station antennas, automotive radars and sensors., Power amplifiers, microwave devices, high-reliability radars, military communication devices, satellite tuner, etc.
WL-CT350 Product parameters:
Exterior | Meet the requirements of the national military standard for microwave printed circuit substrate materials | |||||||||
Model number | WL-CT350 | |||||||||
Dielectric constant | Dielectric constant (10GHZ): 3.48±0.05 Dielectric loss tangent value (10GHZ): 0.004 | |||||||||
Dimensions(mm) | 610*460 600*500 915*1224 | |||||||||
Special size can be pressed according to customer requirements | ||||||||||
Copper foil optional specifications | Forward copper foil: 0.5OZ, 1 OZ | |||||||||
Thickness size and tolerance (mm) | Media thickness (mm) | 0.102 | 0.168 | 0.254 | 0.338 | 0.422 | 0.508 | 0.762 | 1.016 | 1.524 |
公 差 | ±0.01 | ±0.015 | ±0.02 | ±0.03 | ±0.03 | ±0.03 | ±0.05 | ±0.05 | ±0.08 | |
Special thickness can be customized: starting from 0.508mm thickness, increasing with 0.0838mm thickness | ||||||||||
Mechanical behavior | Copper foil peeling strength(10Z) | WL-CT350 | ||||||||
9N/cm | ||||||||||
Thermal Stress | Dip tin, 280 degree Celsius*10s, ≧3 times, no delamination, no blistering | |||||||||
Chemical properties | According to the characteristics of the substrate, the circuit can be processed by referring to the chemical corrosion method of the printed circuit, and the dielectric properties of the material will not change. | |||||||||
Physical electrical properties | Indicator name | Test Conditions | Unit | Index value | |||
Tg | TMA | degree Celsius | ＞280 | ||||
Td | TGA | degree Celsius | 386 | ||||
Proportion | Normal | 1.9 | |||||
Water absorption | Soak in distilled water at 20±2 degree Celsius for 24 hours | % | 0.05 | ||||
Operating temperature | High and low temperature box | degree Celsius | -50～+260 | ||||
Thermal conductivity | Kcal/mh degree Celsius | 0.70 | |||||
Thermal expansion coefficient (Typical value) | -55 º～288ºC
| ppm/ºC
| X | Y | Z | ||
11 | 14 | 34 | |||||
Surface insulation resistance | 500V DC | Normal | M.Ω | ≥4*108 | |||
Constant heat and humidity | ≥1*107 | ||||||
Volume resistance | Normal | MΩ.cm | ≥1*109 | ||||
Constant heat and humidity | ≥1*108 | ||||||
Temperature Coefficient of Dielectric Constant | (PPM/ ºC) -50 º～150ºC | 52 | |||||
Dielectric loss tangent | 2.5GHZ | tgδ | 0.0032 | ||||
10GHZ | tgδ | 0.0040 | |||||
Flame retardant | 94V-0 | ||||||
WL-CT350 Features:
1. Organic polymer ceramic fiberglass cloth is a thermosetting resin system, which has better hardness than PTFE thermoplastic resin system and has a good loss value.
2. The values of DK and DF are stable, and DK/DF changes little as the frequency increases.
3. Excellent electrical performance, excellent thermal conductivity, better insulation performance and heat treatment ability than PTFE materials.
4. Compatible with FR-4 processing technology, without plasma treatment, processing technology is relatively simple, compatible with most PP sheets, PCB processability is excellent, especially suitable for PCB multi-layer board processing.
5. The low thermal expansion coefficient improves the reliability and dimensional stability of plated through holes.
6. Especially suitable for lead-free soldering process.
6. WL-CT350 can replace Rogers RO4350B in some occasions.
