Introducing the Kappa 438 PCB, a cutting-edge laminated circuit board that combines exceptional high-frequency performance with the convenience of standard epoxy/glass (FR-4) processes. Engineered with a glass reinforced hydrocarbon ceramic system, the Kappa 438 offers superior signal integrity, low loss, and flame retardant properties, making it the ideal choice for a wide range of applications. Let's explore the remarkable features and benefits that set the Kappa 438 PCB apart from the competition.
This Kappa 438 PCB boasts a range of exceptional features that ensure exceptional performance and reliability in demanding applications. Here's a closer look at its outstanding attributes:
1. Glass Reinforced Hydrocarbon Thermoset Platform:
The Kappa 438 PCB is built on a robust glass reinforced hydrocarbon thermoset platform, providing a solid foundation for reliable circuitry.
2. Tailored Dielectric Constant (Dk):
With a tailored Dk of 4.38, the Kappa 438 aligns seamlessly with FR-4 industry standards, making it a breeze to convert existing FR-4 designs that require improved electrical performance.
3. Tight Dk and Thickness Tolerance:
The Kappa 438 offers tighter Dk and thickness tolerances compared to FR-4, ensuring consistent circuit performance and allowing for precise design execution.
| Property | Typical Value Kappa 438 | Direction | Units | Condition | Test Method |
| Dielectric Constant, er Design | 4.38 | Z | - | 2.5 GHz | Differential Phase Length Method |
| Dissipation Factor tan, d | 0.005 | Z | - | 10 GHz/23°C | IPC-TM-650 2.5.5.5 |
| Thermal Coefficient of Dielectric Constant e | -21 | - | ppm/°C | 10 GHz (-50 to 150°C) | Modified IPC-TM-650 2.5.5.5 |
| Volume Resistivity | 2.9 x 109 | - | MΩ•cm | COND A | IPC-TM-650 2.5.17.1 |
| Surface Resistivity | 6.2 x 107 | - | MΩ | COND A | IPC-TM-650 2.5.17.1 |
| Electrical Strength | 675 | Z | V/mil | - | IPC-TM-650 2.5.6.2 |
| Tensile Strength | 16 12 | MD CMD | kpsi | - | ASTM D3039/D3039-14 |
| Flexural Strength | 25 19 | MD CMD | kpsi | - | IPC-TM-650 2.4.4 |
| Dimensional Stability | -0.48-0.59 | MD CMD | mm/m | - | IPC-TM-650 2.4.39a |
| Coefficient of Thermal Expansion | 13 | X | ppm/°C | -55 to 288°C | IPC-TM-650 2.4.41 |
| 16 | Y |
| 42 | Z |
| Thermal Conductivity | 0.64 | Z | W/(m.K) | 80°C | ASTM D5470 |
| Time to Delamination (T288) | >60 | - | minutes | 288°C | IPC-TM-650 2.4.24.1 |
| Tg | >280 | - | °C TMA | - | IPC-TM-650 2.4.24.3 |
| Td | 414 | - | °C | - | IPC-TM-650 2.3.40 |
| Moisture Absorption | 0.07 | - | % | 24/23 | IPC-TM-650 2.6.2.1 |
| Young’s Modulus | 2264 2098 | MD CMD | kpsi | - | ASTM D3039/D3039-14 |
| Flex Modulus | 2337 2123 | MD CMD | kpsi | - | IPC-TM-650 2.4.4 |
| Bow | 0.03 | - | % | - | IPC-TM-650 2.4.22C |
| Twist | 0.08 | - | % | - | IPC-TM-650 2.4.22C |
| Copper Peel Strength After Thermal Stress | 5.8 | - | lbs/in | 1 oz (35 µm) foil | IPC-TM-650 2.4.8 |
| Flammability | V-0 | - | - | - | UL 94 |
| Specific Gravity | 1.99 | - | g/cm3 | - | ASTM D792 |
| Lead-Free Process Compatible | Yes | - | - | - | |
4. Low Z Axis CTE and High Tg:
Featuring a low Z Axis coefficient of thermal expansion (CTE) of 42 ppm/°C and a high glass transition temperature (Tg) of > 280°C TMA, the Kappa 438 PCB ensures stability and reliability even in challenging temperature environments.
5. Thermal Coefficient of Dk:
The Kappa 438 exhibits a thermal coefficient of Dk of -21 ppm/°C during a temperature range of -50°C to 150°C, providing excellent stability and minimizing signal distortion.
6. UL 94-V0 Flame Retardancy:
Meeting UL 94-V0 requirements, the Kappa 438 ensures enhanced safety and peace of mind.
| PCB Material: | Glass Reinforced Hydrocarbon Ceramic |
| Designation: | Kappa 438 |
| Dielectric constant: | 4.38 |
| Layer count: | Double Layer, Multilayer, Hybrid PCB |
| Copper weight: | 0.5oz (17 µm), 1oz (35µm) |
| PCB thickness: | 20mil (0.508mm), 30mil (0.762mm), 40mil (1.016mm), 60mil (1.524mm) |
| PCB size: | ≤400mm X 500mm |
| Solder mask: | Green, Black, Blue, Yellow, Red etc. |
| Surface finish: | Bare copper, HASL, ENIG, OSP etc.. |
Unmatched Benefits for Effortless Integration:
The Kappa 438 PCB offers a range of benefits that make it a standout choice for your circuitry needs. Experience the following advantages:
1. Compatibility with FR-4 Processes:
Designed for ease of PCB manufacturing and assembly, the Kappa 438 seamlessly integrates into existing FR-4 workflows, simplifying the adoption process.
2. Improved Electrical Performance:
With its tailored Dk, the Kappa 438 allows for smooth conversion of existing FR-4 designs, offering better electrical performance without compromising convenience.
3. Consistent Circuit Performance:
Count on the Kappa 438 to deliver consistent and reliable circuit performance, ensuring your designs meet the highest standards.
4. Design Flexibility and Reliability:
The Kappa 438 enables improved design flexibility and plated through-hole reliability, empowering you to create innovative and robust circuitry.
5. Automated Assembly Compatibility:
The Kappa 438 is fully compatible with automated assembly processes, streamlining production and reducing costs.
Precise Construction Details:
This Kappa 438 PCB features a 2-layer rigid construction, optimized for performance and ease of use. Here are the key construction details:
- Board dimensions: 76.18mm x 26.4mm, allowing for versatile applications
- Minimum Trace/Space: 5/5 mils, enabling intricate circuitry design
- Minimum Hole Size: 0.30mm, facilitating seamless integration of components
- Finished board thickness: 0.8mm, striking a balance between compactness and durability
- Finished Cu weight: 1 oz (1.4 mils) outer layers, ensuring optimal conductivity
- Via plating thickness: 20 μm, guaranteeing reliable electrical connections
- Surface finish: ENEPIG, providing superior corrosion resistance and solderability
- Top Silkscreen: No, for a clean and minimalistic appearance
- Bottom Silkscreen: No, maintaining a sleek and professional aesthetic
- Top Solder Mask: No, offering flexibility in design and customization
- Bottom Solder Mask: No, ensuring a streamlined and efficient design
- 100% Electrical Test: Each board undergoes rigorous testing to ensure flawless functionality prior to shipment.
Experience Worldwide Availability:
The Kappa 438 PCB is available worldwide, allowing engineers and designers from all corners of the globe to access its remarkable capabilities and unlock new possibilities in their projects.
Whether you're working on carrier-grade WiFi systems, small cell networks, vehicle-to-vehicle communication, or IoT applications, the Kappa 438 PCB empowers you to achieve exceptional results. Upgrade your designs today and experience the seamless integration, outstanding performance, and reliability that the Kappa 438 PCB offers.
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30mil Kappa 438 PCB 2-layer Circuit Board Featuring ENEPIG Images
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