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Ventec VT-4B5H

Jarnistech > Ventec PCB > Ventec VT-4B5H
Ventec VT-4B5H PCB Board

Ventec VT-4B5H Metal Base PCB Laminates offer exceptional performance and reliability for a wide range of applications. With its high thermal conductivity, excellent electrical properties, and environmental compliance, the VT-4B5H substrate stands out as a top choice for demanding electronic designs. In this article, we will explore the key features and advantages of Ventec’s VT-4B5H metal base PCB laminates, comparing them to other materials and highlighting their suitability for various industries.

What is Ventec VT-4B5H?

The VT-4B5H, manufactured by Ventec International Group, is a Metal Base PCB Laminates that offers exceptional thermal performance. It exhibits a high thermal decomposition temperature (Td) of 400 degrees Celsius, ensuring reliable operation under elevated temperatures. Additionally, it features a glass transition temperature (Tg) of 180 degrees Celsius, indicating its ability to maintain dimensional stability and mechanical integrity within a wide temperature range.

Features Information of Ventec VT-4B5H PCB Substrates

Ventec VT-4B5H PCB substrates offer a range of impressive features that make them suitable for various applications. Here are the key features of the VT-4B5H:

1.Thermal Conductivity:

The VT-4B5H exhibits a high thermal conductivity of 4.2 W/mK. This property allows for efficient heat dissipation, making it ideal for applications that require effective thermal management.

2.Glass Transition Temperature (Tg):

The Tg of VT-4B5H is 180°C. This indicates the temperature at which the material transitions from a rigid to a more flexible state. With a Tg of 180°C, the substrate offers excellent dimensional stability and mechanical integrity at elevated temperatures.

3.Maximum Operating Temperature (MOT):

The VT-4B5H can withstand a maximum operating temperature of 155°C. This attribute ensures reliable performance even in demanding operating conditions.

4.Ceramic Filled:

The substrate is ceramic filled, which enhances its thermal performance and provides improved mechanical strength. The ceramic filler also contributes to the overall stability and reliability of the PCB.


VT-4B5H is manufactured without the use of halogen-based materials. This makes it environmentally friendly and compliant with regulations that restrict the use of halogens in electronic products.

6.Flammability Rating:

The VT-4B5H substrate has a flammability rating of UL94 V-0. This indicates that it meets the stringent requirements for flame retardancy, offering enhanced safety and protection against fire hazards.

All in all, Ventec VT-4B5H PCB substrates combine excellent thermal conductivity, high glass transition temperature, ceramic filling, halogen-free composition, and a superior flammability rating. These features make it a reliable and versatile choice for various PCB applications.

Performance of Ventec VT-4B5H PCB Material

The performance of the Ventec VT-4B5H PCB material is characterized by several key factors that make it suitable for various applications. Here are some aspects of its performance:

1. Thermal Conductivity: The VT-4B5H PCB material exhibits high thermal conductivity, allowing for efficient heat dissipation. This property helps in managing the heat generated by electronic components, thereby enhancing overall system reliability and performance.

2. Thermal Expansion and CTE Matching: The VT-4B5H material is designed to have a coefficient of thermal expansion (CTE) that closely matches that of copper, which is commonly used for circuit traces. This CTE matching reduces the risk of thermal stress and mechanical failures, especially during temperature cycling or variations.

3. Electrical Performance: The material offers excellent electrical properties, including low dielectric loss and high electrical insulation. This ensures minimal signal loss and reliable performance in high-frequency applications, making it suitable for circuits that require efficient signal transmission.

4. Mechanical Strength and Durability: VT-4B5H features a robust construction that provides mechanical strength and durability to withstand the rigors of PCB fabrication, assembly, and use. It offers good dimensional stability and can withstand the stresses and strains experienced during manufacturing processes and environmental conditions.

5. Chemical Resistance: The VT-4B5H material exhibits resistance to various chemicals commonly encountered during PCB manufacturing processes, such as etching solutions and soldering fluxes. This chemical resistance helps maintain the material’s integrity and reliability during assembly and operation.

6. RoHS Compliance: Ventec VT-4B5H PCB material meets RoHS (Restriction of Hazardous Substances) compliance standards, ensuring that it is free from hazardous substances like lead, mercury, cadmium, and others. This compliance aligns with environmental regulations and promotes the use of environmentally friendly materials.

It’s important to note that the actual performance of the VT-4B5H material may vary depending on specific application requirements and the design and manufacturing processes employed.

Design Considerations and Guidelines for using Ventec VT-4B5H

When designing with Ventec VT-4B5H Metal Base PCB Laminates, it is important to consider specific guidelines and best practices to ensure optimal performance and reliability. Here are some design considerations to keep in mind:

1. Thermal Management:

Utilize proper heat sinking techniques to maximize the heat dissipation capabilities of the metal base.

Design for adequate airflow and ventilation around the PCB to facilitate heat transfer.

Consider the use of thermal vias or copper planes to enhance thermal conductivity.

2. PCB Layout and Stackup:

Follow recommended design guidelines provided by Ventec for layer stackup, trace widths, and spacing.

Place high-power components and heat-generating elements strategically to optimize heat dissipation.

Minimize the use of vias in high-current paths to reduce impedance and improve thermal performance.

3. Signal Integrity and EMI:

Pay attention to signal integrity considerations, such as controlled impedance matching for high-speed signals.

Use proper ground and power planes to minimize noise and electromagnetic interference (EMI).

Consider signal isolation techniques to prevent crosstalk and ensure signal integrity.

4. Mounting and Assembly:

Follow recommended assembly guidelines to ensure proper bonding and compatibility with soldering processes.

Verify that the PCB material and thickness are suitable for the chosen mounting method (e.g., screws, adhesive).

Consider the coefficient of thermal expansion (CTE) compatibility between the PCB and mounting materials to prevent mechanical stress during temperature variations.

5. Mechanical Considerations:

Design the PCB with appropriate mechanical reinforcement to withstand mechanical stress and vibration.

Consider the weight and size of the PCB, as the metal base may add additional bulk.

Take into account any specific environmental conditions (e.g., humidity, temperature extremes) and design accordingly.

6. Compliance and Standards:

Ensure compliance with applicable industry standards and regulations, such as IPC (Institute for Printed Circuits) standards and RoHS (Restriction of Hazardous Substances) directives.

Verify that the Ventec VT-4B5H material meets the specific requirements of your application.

Different Between Ventec VT-4B5H and Other High quality PCB Materials

Ventec VT-4B5H is a high-quality metal base PCB laminate, but it’s essential to understand how it compares to other high-quality PCB materials to make an informed choice. Here are some key differences that set Ventec VT-4B5H apart from other materials:

1. Metal Base Construction:

Ventec VT-4B5H features a metal base, typically aluminum or copper, which provides enhanced thermal conductivity and heat dissipation capabilities compared to traditional FR-4 or non-metal core laminates.

Other high-quality PCB materials may utilize alternative constructions, such as ceramic-filled or thermally conductive polymer-based laminates, with varying thermal properties.

2. Thermal Conductivity:

Ventec VT-4B5H offers high thermal conductivity, allowing for efficient heat transfer and dissipation from heat-generating components.

The thermal conductivity of other high-quality PCB materials may vary, and it’s important to consider the specific application requirements and thermal management needs.

3. Thermal Expansion and CTE Matching:

VT-4B5H is designed with a coefficient of thermal expansion (CTE) that closely matches copper, reducing the risk of thermal stress and mechanical failures in the PCB.

Other materials may have different CTE values, which can impact the reliability of the PCB assembly, especially during temperature cycling or variations.

4. Electrical Performance:

VT-4B5H offers excellent electrical properties, including low dielectric loss and high electrical insulation, ensuring reliable signal transmission and minimal signal loss.

Other high-quality PCB materials may also provide good electrical performance, but the specific characteristics may vary, such as dielectric constant or dissipation factor.

5. Application Flexibility:

Ventec VT-4B5H is suitable for a wide range of applications that require efficient thermal management, such as power electronics, LED lighting, automotive, and industrial electronics.

Other high-quality PCB materials may be optimized for specific applications or have unique properties that make them more suitable for certain industries or use cases.

6. Manufacturer Expertise and Support:

Ventec is a well-established manufacturer with expertise in PCB materials and thermal management solutions. They offer technical support, application-specific guidance, and extensive documentation for their materials.

Other high-quality PCB material manufacturers may also provide similar support, but the level of expertise and available resources may differ.

It’s important to evaluate the specific requirements of your application, including thermal management needs, electrical performance, and industry standards, and consider the unique properties of Ventec VT-4B5H and other high-quality PCB materials to determine the most suitable option for your project. Conducting thorough research and consulting with PCB material experts can help make an informed decision.

Application of Ventec VT-4B5H

The Ventec VT-4B5H PCB substrate, with its exceptional thermal and electrical properties, finds application in a wide range of industries and specific use cases. Here are some notable applications where the VT-4B5H substrate excels:

1. High Beam & Low Beam: The VT-4B5H is well-suited for high beam and low beam applications in automotive lighting systems. Its high thermal conductivity helps dissipate heat generated by the lighting components, ensuring efficient and reliable operation.

2. Power Conversion: The VT-4B5H substrate is commonly employed in power conversion applications, such as inverters and converters. Its high thermal decomposition temperature (Td) and glass transition temperature (Tg) enable it to withstand the heat generated during power conversion processes.

3. Power Modules: The VT-4B5H is an excellent choice for power module applications. Its ceramic-filled construction enhances thermal conductivity and mechanical strength, making it suitable for high-power applications that require efficient heat dissipation.

4. Motor Drives & Controllers: The VT-4B5H substrate is widely used in motor drives and controllers, where it provides reliable electrical insulation and thermal management. Its high glass transition temperature (Tg) ensures stable performance even in demanding motor control applications.

5. Rectifiers: The VT-4B5H is well-suited for rectifier applications, where it offers excellent thermal conductivity and electrical insulation properties. Its high operating temperature (MOT) allows it to withstand the heat generated by rectification processes.

6. Power Supply: The VT-4B5H substrate is commonly employed in power supply applications, including high-temperature and high-voltage power supplies. Its thermal properties and robust construction make it suitable for demanding power supply designs.

7. Other High-Temperature and/or High-Voltage Applications: The VT-4B5H is versatile and can be used in various other applications that require high-temperature and/or high-voltage performance. Its combination of thermal conductivity, electrical insulation, and stability makes it suitable for demanding environments.

Overall, the Ventec VT-4B5H PCB substrate is utilized in a range of applications, including automotive lighting, power conversion, power modules, motor drives, rectifiers, power supplies, and other high-temperature and high-voltage applications. Its exceptional thermal and electrical properties make it a reliable choice for demanding electronic designs.


Ventec VT-4B5H Metal Base PCB Laminates provide a winning combination of high performance and reliability. With its impressive thermal conductivity, excellent electrical properties, and adherence to environmental standards, the VT-4B5H substrate offers a solid foundation for advanced electronic designs. Whether it’s in industries such as automotive, aerospace, or power electronics, the VT-4B5H laminates deliver the necessary attributes to meet the demanding requirements of modern applications. Trust in Ventec’s VT-4B5H metal base PCB laminates for your next project and experience the benefits of superior performance and quality.

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