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In this article, we’ll discuss what really characterizes the high CTI Shengyi S1600 laminate. The relevant information is available for pcb design engineers to refer to in the selection of materials, And you can also call QFPCB to discuss. QFPCB offers the best services when it comes to the high CTI or high temperature Laminate, so please feel free to contact us.

What is the Shengyi S1600 PCB laminate?
Shengyi S1600 is the ultimate polyimide laminate and prepreg system for PWB’s requiring resistance to high CTI requirements, both in process and in end-use application. The glass transition temperature (Tg) of Shengyi S1600, typically is 135°C, provides exceptional thermal stability.This characteristic ensures that the material maintains its mechanical and electrical properties even under extreme temperature conditions.
Shengyi S1600 pcb material has a high CTI value of 600V, which measures the material’s resistance to electric breakdown caused by surface contamination. This high CTI rating makes Shengyi S1600 ideal for high-voltage applications where insulation integrity is critical. Shengyi S1600 exhibits exceptional resistance to conductive anodic filaments (CAF), which can cause short circuits and reliability issues in high-voltage applications. The material’s high CAF resistance minimizes the risk of filament formation between conductive layers, ensuring long-lasting performance and reliability. This property is crucial for maintaining signal integrity and preventing failures in high-voltage circuits, especially in environments prone to moisture and humidity.
Features of the Shengyi S1600 PCB datasheet

High CTI
The high CTI Shengyi S1600 rating indicates superior resistance to electrical tracking, which minimizes the risk of short circuits caused by conductive paths forming on the surface of the material. Ideal for environments where high voltage and humidity levels are common, ensuring long-term reliability and safety.
UV Blocking
Blocks harmful ultraviolet light, preventing degradation of sensitive components over time. Enhances the durability of devices exposed to sunlight or other UV sources, extending their operational life.
Good Mechanical Processability
High CTI Shengyi S1600 offers excellent machinability, making it easier to cut, drill, and shape without compromising structural integrity. Reduces production costs by minimizing material waste and improving yield rates during manufacturing processes.
Not Recommended for Solder Mask Rework
Due to its specific properties, High CTI Shengyi S1600 may not be suitable for solder mask rework, necessitating careful planning and execution during assembly.
Anti-CAF capability
This is another great property of high CTI PCB material, this PCB laminate is CAF resistant. Conductive anodic filament (CAF) causes failures in PCB’s, and high CTI Shengyi S1600 PCB material is resistant to CAF and prevents failure in circuit board. The risk of CAF occurs when a metallic filament is formed from an electrochemical migration process.
Low Water Absorption
Another great feature of the high CTI Shengyi S1600 PCB material is its low water absorption rate. What we mean is that the Shengyi S1600 PCB material is useful in moisture-laden applications with less worry. This characteristic ensures that the integrity of the printed circuit boards is maintained over time, reducing the risk of corrosion and other forms of degradation that can occur when materials are exposed to damp conditions.
What are the applications of the Shengyi S1600 PCB material?
High CTI Shengyi S1600 finds extensive use in various applications due to its robust performance characteristics:
Power Supplier
Suitable for power supply units requiring high CTI to prevent electrical failures under high voltage conditions. Ensures compliance with international safety standards, enhancing product reliability and user safety.
Washing Machine
Provides reliable performance in humid environments, protecting internal electronics from moisture-related issues.Enhances the durability of washing machines, contributing to longer service life and reduced maintenance needs.
PDP, LCD, TV, Refrigerator
Used in flat-panel displays and refrigerators, offering protection against electrical tracking and UV damage.Contributes to higher quality standards in consumer electronics, ensuring better performance and longevity.
For Applications with CAF Requirements
Critical for applications requiring Conductive Anodic Filament (CAF) resistance, ensuring that no conductive filaments form between conductive layers.Recommends customers to conduct thorough reliability assessments to ensure the material meets all necessary criteria for CAF prevention.
Manufacturing advantages of Shengyi S1600 PCB material
The unique properties of high CTI Shengyi S1600 offer several advantages in the manufacturing process:
Superior Mechanical Properties
Facilitates precise machining operations, allowing for the creation of complex geometries with high accuracy. Ensures consistent quality across batches, leading to fewer defects and higher customer satisfaction.
Enhanced Electrical Performance
The high CTI ensures that the material can withstand high voltages without suffering from electrical tracking, reducing the likelihood of catastrophic failures. Allows designers to create more compact and efficient circuits without compromising on safety.
Specific Process Considerations
While high CTI Shengyi S1600 excels in many areas, it is not recommended for solder mask rework. Manufacturers must plan their assembly processes carefully to avoid situations requiring rework. Encourages the development of optimized assembly processes that minimize the need for rework, thereby maximizing efficiency and reducing costs.
Ultimately,High CTI Shengyi S1600 represents a significant advancement in materials technology, offering unparalleled performance in terms of safety, durability, and manufacturing efficiency. By leveraging the unique properties of high CTI Shengyi S1600, manufacturers can produce more reliable, durable, and efficient products, ultimately benefiting both businesses and consumers.
If you have any further questions, please feel free to leave a comment below or contact QFPCB by email ([email protected]).











