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Ventec VT-4A2

Jarnistech > Ventec PCB > Ventec VT-4A2
Ventec VT-4A2 Aluminum PCB Board

In the ever-evolving landscape of printed circuit board (PCB) materials, the Ventec VT-4A2 Aluminum Base PCB Laminates stand out as a pinnacle of engineering excellence. Engineered by Ventec International Group, these laminates encapsulate cutting-edge technology and innovative design to meet the demanding requirements of modern electronic applications.

What is Ventec VT-4A2?

The Ventec VT-4A2 Aluminum Base PCB Laminates provide a comprehensive solution for printed circuit board applications. These laminates are characterized by their aluminum base and exhibit a notable glass transition temperature (Tg) of 130 degrees Celsius. This product is designed to meet the specific requirements of PCB engineering, offering reliability and performance in various electronic applications.

Feature for Ventec VT-4A series Laminate

The Ventec VT-4A series laminate is a high-performance material designed for use in electronic printed circuit boards (PCBs). Here are some key features of the different variants within the series:

1. VT-4A1 / VT-4A1 PP:

●Thermal Conductivity: 1.6W/mK
●Maximum Operating Temperature (MOT): 90°C
●Excellent Electrical and Mechanical Characteristics
●Flammability Rating: UL94 V-0

2. VT-4A2 / VT-4A2 PP:

●Thermal Conductivity: 2.2W/mK
●MOT: 90°C
●Excellent Electrical and Mechanical Characteristics
●Flammability Rating: UL94 V-0

3. VT-4A2H / VT-4A2H PP:

●Thermal Conductivity: 2.2W/mK
●MOT: 105°C
●Excellent Electrical and Mechanical Characteristics
●Flammability Rating: UL94 V-0

All variants of the VT-4A series laminate offer good thermal conductivity, allowing for efficient heat dissipation in electronic applications. They have a maximum operating temperature of either 90°C (VT-4A1 and VT-4A2) or 105°C (VT-4A2H), making them suitable for a range of electronic devices.

These laminates also exhibit excellent electrical and mechanical characteristics, ensuring reliable performance in PCB applications. Additionally, they meet the flammability standard UL94 V-0, indicating high resistance to ignition and self-extinguishing properties.

Furthermore, the Ventec VT-4A series laminate is halogen-free, which means it does not contain halogens like chlorine or bromine. This is important for environmental and safety considerations as halogens can produce toxic gases when burned.

Overall, the VT-4A series laminate offers a combination of thermal, electrical, mechanical, and safety properties that make it a suitable choice for demanding electronic applications.

Properties and Characteristics of Ventec VT-4A2

Properties and Characteristics of Ventec VT-4A2 Aluminum Base PCB Laminates:

1. Composition and Structure:

VT-4A2 is an aluminum base PCB laminate that consists of a layer of aluminum core bonded with dielectric materials.

The dielectric layer is typically made of epoxy resin or polyimide reinforced with glass fiber.

2. Thermal Conductivity and Management:

VT-4A2 exhibits excellent thermal conductivity, allowing efficient dissipation of heat generated by electronic components.

The aluminum core provides a high thermal conductivity path, enabling effective heat transfer away from heat-generating components.

This laminate is suitable for applications requiring effective thermal management, such as power electronics and LED lighting.

3. Dielectric Properties and Electrical Performance:

VT-4A2 offers good electrical insulation properties due to its dielectric layer.

The dielectric constant (εr) and dissipation factor (tanδ) of the laminate influence its electrical performance at different frequencies.

The dielectric constant and loss tangent are typically tailored to meet specific design requirements, ensuring signal integrity and minimizing signal loss.

4. Mechanical Strength and Durability:

The aluminum core in VT-4A2 provides mechanical strength and rigidity to the laminate.

This makes it resistant to warping and bending, ensuring the structural integrity of the PCB.

The laminate exhibits good dimensional stability, even under temperature variations and mechanical stress.

5. Surface Finish and Solderability:

VT-4A2 is compatible with various surface finishes, such as HASL (Hot Air Solder Leveling), ENIG (Electroless Nickel Immersion Gold), and OSP (Organic Solderability Preservatives).

It offers good solderability, allowing reliable solder joints during assembly processes.

6. Compatibility with High-Frequency Applications:

VT-4A2 is designed to provide excellent electrical performance at high frequencies.

It offers low signal loss and controlled impedance characteristics, making it suitable for high-frequency applications like RF circuits and microwave devices.

7. Reliability and Stability:

VT-4A2 exhibits stability and reliability in harsh operating conditions, including high temperatures and humidity.

The laminate is engineered to withstand thermal cycling and mechanical stress, ensuring long-term performance and durability.

8. Environmental Considerations:

VT-4A2 is compliant with environmental regulations, such as RoHS (Restriction of Hazardous Substances) directives.

It is free from hazardous substances like lead, making it environmentally friendly.

These properties and characteristics make Ventec VT-4A2 Aluminum Base PCB Laminates suitable for a wide range of applications that require efficient heat dissipation, high-frequency performance, and reliability in demanding environments.

Comparison with Standard FR4 PCB Laminates

When comparing Ventec VT-4A2 Aluminum Base PCB Laminates with other PCB laminates, it’s important to consider the specific properties, characteristics, and application requirements of each laminate. Here are a few key points to consider when comparing VT-4A2 with other laminates:

1. Aluminum Base vs. FR-4:

VT-4A2 is an aluminum base laminate, while FR-4 is a widely used fiberglass-reinforced epoxy laminate.

Aluminum base laminates offer superior thermal conductivity compared to FR-4, making them suitable for applications that require efficient heat dissipation.

FR-4 laminates are more commonly used for general-purpose PCBs and may be more cost-effective for certain applications.

2. Thermal Conductivity:

VT-4A2 is known for its high thermal conductivity, which allows for effective heat dissipation.

When compared to standard FR-4 laminates, VT-4A2 offers significantly better thermal management capabilities.

3. Dielectric Properties:

Dielectric properties, such as dielectric constant (εr) and dissipation factor (tanδ), vary between different laminates.

VT-4A2 and FR-4 laminates have different dielectric properties, and the choice depends on the specific electrical performance requirements of the application.

4. High-Frequency Performance:

VT-4A2 is designed to provide excellent electrical performance at high frequencies, making it suitable for RF and microwave applications.

FR-4 laminates may have limitations in terms of high-frequency performance and may not be suitable for certain high-frequency applications.

5. Mechanical Strength and Durability:

VT-4A2, with its aluminum core, offers good mechanical strength and rigidity.

FR-4 laminates may have lower mechanical strength compared to aluminum base laminates, but they are still widely used for many applications.

6. Environmental Considerations:

Both VT-4A2 and FR-4 laminates can meet environmental regulations such as RoHS.

However, the specific environmental requirements of the application should be considered when selecting a laminate.

7. Cost and Availability:

The cost of VT-4A2 may be higher compared to standard FR-4 laminates due to its specialized properties.

Availability of VT-4A2 may vary depending on the region and supplier, while FR-4 laminates are widely available.

Design Considerations for VT-4A2

Design Considerations for Ventec VT-4A2 Aluminum Base PCB Laminates:

1. Operating Frequency and Signal Integrity:

Consider the operating frequency range of your circuit and ensure that the VT-4A2 laminate can provide the required electrical performance at those frequencies.

Design the PCB layout to minimize signal loss, impedance mismatch, and electromagnetic interference (EMI).

Use controlled impedance traces and appropriate transmission line structures to maintain signal integrity.

2. Thermal Management and Heat Dissipation:

VT-4A2 is known for its excellent thermal conductivity, allowing efficient heat dissipation.

Consider the power dissipation of your components and design the PCB to provide adequate thermal relief and heat sinking.

Use thermal vias to transfer heat from the components to the aluminum core and ensure proper airflow in the system.

3. Mechanical Strength and PCB Assembly:

VT-4A2 exhibits good mechanical strength, but it is still important to design the PCB with appropriate mechanical support and reinforcement.

Consider the weight and size of the PCB, as well as any mechanical stress or vibration it may experience during operation.

Ensure that the PCB design can withstand the assembly and handling processes without compromising its structural integrity.

4. Design Constraints and Layout Guidelines:

Familiarize yourself with the manufacturer’s design guidelines and specifications for VT-4A2 laminates.

Consider any specific design constraints related to the material, such as minimum trace width and spacing, drill sizes, and aspect ratios.

Follow best practices for high-frequency design, such as minimizing trace lengths, using proper grounding techniques, and avoiding signal reflections.

5. Environmental Considerations:

VT-4A2 is designed to withstand harsh environmental conditions, but it is still important to consider the specific operating environment of your application.

Evaluate factors such as temperature extremes, humidity, chemical exposure, and vibration to ensure the PCB design can meet the required reliability standards.

6. Manufacturing and Assembly Process Compatibility:

Consider the compatibility of VT-4A2 with your chosen manufacturing and assembly processes.

Ensure that the laminate can be easily processed, including drilling, plating, soldering, and surface finishing.

Consult with your PCB manufacturer to ensure they have experience working with VT-4A2 and can meet the required fabrication and assembly specifications.

7. Cost and Availability:

Consider the cost of VT-4A2 laminate in relation to your budget and project requirements.

Evaluate the availability of the material from your chosen suppliers and ensure that it can be sourced consistently for your production needs.

By taking these design considerations into account, you can maximize the benefits of Ventec VT-4A2 Aluminum Base PCB Laminates and ensure the successful implementation of your PCB design.

Application of VT-4A PCB Material

The Ventec VT-4A PCB material finds versatile applications across multiple industries, owing to its superior characteristics. Some notable applications include:

Ultra Bright LED Substrate:

The high thermal conductivity and excellent electrical properties of VT-4A make it well-suited for serving as a substrate in ultra-bright LED applications. Its efficient heat dissipation capabilities contribute to the optimal performance and longevity of LED systems.

Power Conversion:

VT-4A’s thermal properties, combined with its electrical performance, make it an ideal choice for power conversion applications. It facilitates the efficient conversion of electrical power, ensuring reliability and stability in various electronic devices.

PDP, LED, Regulator for TV:

The VT-4A PCB material is suitable for Plasma Display Panel (PDP) and LED applications, as well as serving as a regulator in television systems. Its thermal conductivity and electrical characteristics contribute to the overall performance and reliability of these components.

Monitor Drives:

In monitor systems, VT-4A can be employed for driving various components. Its excellent electrical properties support the precision required for monitor drives, ensuring smooth operation and signal integrity.

Rectifier, Power Supply:

For rectifier and power supply applications, the VT-4A material offers reliable electrical performance and thermal management. Its suitability for these functions enhances the efficiency and stability of rectification and power supply systems.

All in all, the VT-4A PCB material from Ventec is well-suited for a range of applications, including but not limited to ultra-bright LED substrates, power conversion, PDP and LED modules, regulator functions in TVs, monitor drives, rectifiers, and power supply systems. Its combination of thermal conductivity, electrical characteristics, and safety features makes it a versatile choice for diverse electronic applications.

Storage Condition and Shelf Life for Ventec VT-4A

The storage conditions and shelf life for Ventec VT-4A PCB material are crucial considerations to ensure the optimal performance and reliability of the material. Follow the guidelines below:

1.Storage Conditions:


Store Ventec VT-4A PCB material in a controlled environment with a consistent temperature.
Recommended storage temperature: 23°C ± 5°C.


Maintain low humidity levels during storage to prevent moisture absorption.
Recommended relative humidity: 60% RH or lower.

Avoidance of Contaminants:

Store VT-4A PCB material away from contaminants such as dust, dirt, and chemicals that could compromise its quality.


Ensure that the material is stored in its original packaging or an equivalent protective covering to shield it from environmental factors.

2.Shelf Life:

Expiration Date:

Adhere to the specified shelf life provided by Ventec International Group.
Respect the expiration date indicated on the product documentation.

First-In-First-Out (FIFO):

Implement a FIFO inventory management system to use older batches of VT-4A PCB material first, ensuring that materials are consumed before reaching their expiration date.

Quality Checks:

Before using VT-4A PCB material, conduct quality checks to ensure it meets specifications. Check for any signs of damage or contamination.

By following these storage conditions and shelf life guidelines, you can preserve the integrity of Ventec VT-4A PCB material, maintain its performance characteristics, and ensure its suitability for use in electronic applications. Always refer to the manufacturer’s documentation for specific storage and shelf life recommendations.

In Conclusion

Ventec VT-4A2 Aluminum Base PCB Laminates epitomize the synergy between technological innovation and practical application. As electronic systems become more intricate, the demand for advanced materials that can withstand diverse challenges is paramount. The VT-4A2 series not only meets but exceeds these expectations, offering a steadfast foundation for the future of electronic design. As we traverse the technological horizon, Ventec’s commitment to excellence shines through in the VT-4A2 series, ensuring that the pulse of innovation beats strong in every electronic application they empower.

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