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What Are The Features of RT/duroid 5880 PCB?
Rogers RT/duroid 5880 is a cutting-edge high-frequency laminate that revolutionizes the field of PCB (Printed Circuit Board) technology. This advanced material is a PTFE (Polytetrafluoroethylene) composite reinforced with glass microfibers, resulting in exceptional electrical properties and durability. With its low dielectric constant and minimal signal loss, RT/duroid 5880 is the ideal choice for high-frequency and broadband applications. Let's delve deeper into the features, benefits, construction details, and applications of this remarkable PCB.
Features
RT/duroid 5880 boasts an impressive array of features that set it apart from conventional laminates:
1)Low Dielectric Constant (Dk):
With a dielectric constant of 2.2 and a tight tolerance of 0.02 at 10 GHz and 23°C, RT/duroid 5880 ensures exceptional signal integrity and minimized signal distortion.
2)Low Dissipation Factor:
The dissipation factor of 0.0009 at 10 GHz ensures minimal energy loss and optimal signal transmission, making it suitable for high-frequency applications.
3)Temperature Coefficient of Dielectric Constant (TCDk):
RT/duroid 5880 exhibits excellent stability over temperature variations, with a TCDk of -125 ppm/°C. This ensures consistent performance even in challenging thermal environments.
4)Low Moisture Absorption:
With a moisture absorption rate of only 0.02%, RT/duroid 5880 maintains its electrical properties and dimensional stability even in high-humidity conditions.
5)Low Coefficient of Thermal Expansion (CTE):
RT/duroid 5880 exhibits a low CTE, with values of 31 ppm/°C (X-axis), 48 ppm/°C (Y-axis), and 237 ppm/°C (Z-axis). This ensures reliable performance under varying temperatures and prevents mechanical stress on the PCB.
6)Isotropic:
The isotropic nature of RT/duroid 5880 ensures uniform electrical properties in all directions, making it suitable for complex circuit designs.
Benefits
The exceptional features of Rogers RT duroid 5880 translate into several significant benefits for PCB designers and manufacturers:
1)Uniform Electrical Properties:
Rogers 5880 PCB maintains consistent electrical properties over a wide frequency range, enabling reliable signal transmission and reducing the need for design adjustments.
2)Ease of Fabrication:
This high-frequency laminate is easily cut, shaped, and machined, allowing for precise customization to meet specific design requirements.
3)Chemical Resistance:
RT/duroid 5880 is highly resistant to solvents and reagents used in etching or plating processes, ensuring the integrity of the edges and holes during PCB manufacturing.
4)Ideal for High Moisture Environments:
With its low moisture absorption rate, RT/duroid 5880 is well-suited for applications in high-humidity or moisture-prone environments, such as marine or aerospace applications.
5)Well-established Material:
Rogers substrate 5880 has a proven track record and is widely recognized and trusted in the industry. Its reliability and performance have made it a popular choice among PCB designers and manufacturers.
6)Lowest Electrical Loss:
Among reinforced PTFE materials, RT/duroid 5880 exhibits the lowest electrical loss, ensuring minimal signal attenuation and maximizing signal integrity.
PCB Stackup and Construction Details
The RT duroid 5880 PCB is a 2-layer rigid PCB with the following stackup:
Copper Layer 1: 35 μm
RT/duroid 5880: 0.127 mm (5mil)
Copper Layer 2: 35 μm
Additional construction details of the PCB include:
Board Dimensions: The PCB measures 35mm x 70mm, allowing for compact and versatile designs. The dimensions are maintained within tight tolerances of +/- 0.15mm, ensuring precision and consistency.
Minimum Trace/Space: The minimum trace width and spacing of the PCB are 5 mils, enabling intricate and high-density circuit designs.
Minimum Hole Size: The PCB supports a minimum hole size of 0.4mm, facilitating the use of various components and connectors.
No Blind Vias: The PCB does not include blind vias, simplifying the manufacturing process and reducing manufacturing costs.
Finished Board Thickness: The finished board thickness is 0.2mm, providing a compact and lightweight solution for space-constrained applications.
Finished Copper Weight: The outer layers of the PCB have a finished copper weight of 1oz (1.4 mils), ensuring optimal electrical conductivity and thermal dissipation.
Via Plating Thickness: The via plating thickness is 20 μm, guaranteeinguniform and reliable electrical connections between layers.
Surface Finish: The PCB is finished with immersion tin, providing excellent solderability and ensuring a flat and smooth surface for component placement.
Silkscreen and Solder Mask: The PCB does not include top or bottom silkscreen or solder mask, offering a minimalist and streamlined appearance.
Electrical Testing: To ensure the highest quality and reliability, each PCB undergoes a 100% electrical test before shipment, verifying its functionality and adherence to specifications.
PCB Statistics
The RT5880 PCB is designed to accommodate various components and circuit configurations. Here are the statistics of the PCB:
Components: The PCB supports up to 7 components, allowing for versatile and complex circuit designs.
Total Pads: There are 18 pads in total, providing ample connectivity options for component placement.
Thru-Hole Pads: The PCB features 9 thru-hole pads, enabling the use of through-hole components for enhanced mechanical stability.
Top SMT Pads: The top surface of the PCB includes 9 SMT (Surface Mount Technology) pads, facilitating the placement of surface-mounted components.
Bottom SMT Pads: The bottom surface of the PCB does not include SMT pads, making it ideal for single-sided applications or designs without bottom-mounted components.
Vias: The PCB incorporates 6 vias, allowing for efficient routing and interconnection between different layers.
Nets: The PCB supports 1 net, providing a clear and organized signal path for efficient circuit operation.
Artwork and Standards
The RT duroid 5880 PCB accepts Gerber RS-274-X artwork, a widely used standard format for PCB design data. This ensures compatibility and ease of integration with various design tools and manufacturing processes. Additionally, the PCB adheres to the IPC-Class-2 standard, ensuring high quality and reliability in accordance with industry standards.
Availability and Applications
The Rogers 5880 PCB is available worldwide, making it accessible to PCB designers and manufacturers across the globe. Its exceptional characteristics and performance make it suitable for a wide range of applications, including:
1.Commercial Airline Broadband Antennas:
The high-frequency capabilities of RT/duroid 5880 make it an excellent choice for broadband antennas used in commercial airline communication systems.
2.Microstrip and Stripline Circuits:
RT/duroid 5880 excels in microstrip and stripline circuit designs, providing low loss and high signal integrity for applications such as RF filters and amplifiers.
3.Millimeter Wave Applications:
The PCB's excellent electrical properties and stability make it ideal for millimeter wave applications, including radar systems and wireless communication devices operating in the high-frequency range.
4.Guidance Systems:
RT/duroid 5880 is well-suited for guidance systems in aerospace and defense industries, enabling precise and reliable signal transmission in critical applications.
5.Point-to-Point Digital Radio Antennas:
The PCB's low loss and high-frequency capabilities make it a preferred choice for point-to-point digital radio antennas, ensuring efficient and reliable communication over long distances.
Conclusion
In conclusion, the Rogers duroid 5880 PCB with a thickness of 5mil delivers outstanding electrical performance, reliability, and ease of fabrication. Its low dielectric constant, minimal signal loss, and excellent stability over temperature variations make it an exceptional choice for high-frequency and broadband applications. With worldwide availability and a wide range of applications, the RT/duroid 5880 high frequency PCB empowers designers to create cutting-edge solutions in various industries.
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