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Taconic TLF-34

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Taconic TLF-34 PCB Board

Taconic TLF-34 PCB materials have gained recognition as a high-performance solution for RF (Radio Frequency) applications. With their exceptional characteristics, TLF-34 laminates offer engineers and designers a reliable option for achieving low signal loss, high-frequency stability, and excellent peel strength. In this article, we will explore the advantages, considerations, and applications of Taconic TLF-34 PCB materials.

Taconic TLF-34 PCB Materials

Taconic TLF-34 is a type of PCB (Printed Circuit Board) material offered by Taconic, a renowned manufacturer in the industry. TLF-34 is specifically designed for high-performance applications in the field of microwave and radio frequency electronics. It is an organic-ceramic laminate that incorporates woven glass reinforcement as its core structural element.

TLF-34 is widely regarded as an excellent choice for commercial projects that prioritize cost-effectiveness and high-volume production. Its unique composition and engineering make it particularly well-suited for applications where low-cost manufacturing and large-scale deployment are key factors.

One of the notable advantages of TLF-34 is its exceptional peel strength when used with copper layers of ½ ounce and 1 ounce. This characteristic sets it apart from standard epoxy-based materials, making it an ideal option when rework or repairs are anticipated.

In terms of performance, TLF-34 is specifically designed to deliver superior high-frequency capabilities. It exhibits low moisture absorption rates and a low dissipation factor, which work together to minimize phase shifts with varying frequencies. This ensures that the material maintains excellent signal integrity, even in demanding high-frequency environments.

Additionally, TLF-34 offers dimensional stability due to the use of woven fabrics in its construction. This stability is crucial in maintaining the integrity and reliability of the PCB over time, particularly in applications where temperature variations or mechanical stress may be present.

Overall, Taconic TLF-34 is a highly regarded PCB material that combines cost-effectiveness, high-volume production capabilities, excellent peel strength, superior high-frequency performance, and dimensional stability. Its unique properties make it a preferred choice for a wide range of commercial microwave and radio frequency applications.

Benefits of Choose Taconic TLF-34 PCB Substrates

Choosing Taconic TLF-34 PCB substrates offers a range of benefits that make it an advantageous option for various applications. Here are the key advantages of selecting TLF-34:

1.Exceptionally low loss:

TLF-34 exhibits an exceptionally low loss, meaning it minimizes the attenuation of signals passing through the PCB. This characteristic is crucial in high-frequency applications where signal integrity is paramount, as it helps maintain the accuracy and quality of the transmitted or received signals.

2.Stable at high frequency:

TLF-34 is engineered to provide stability even at high frequencies. It effectively mitigates the undesirable effects of signal degradation, such as phase shifts and signal distortions, that can occur in high-frequency electronic systems. This stability ensures reliable and consistent performance in demanding high-frequency environments.

3.Stable at high temperature:

TLF-34 demonstrates excellent stability at high temperatures. It can withstand elevated operating temperatures without significant degradation in its electrical and mechanical properties. This feature is vital in applications where the PCB is exposed to heat-generating components or environments with high ambient temperatures.

4.Low moisture absorption:

TLF-34 has a low moisture absorption rate, which means it absorbs minimal moisture from the surrounding environment. This property is advantageous in humid conditions or applications where exposure to moisture is a concern. It helps maintain the dimensional stability and electrical performance of the PCB, preventing issues such as delamination or changes in dielectric properties.

5.Excellent peel strength:

TLF-34 offers exceptional peel strength, particularly when used with ½ ounce and 1 ounce copper layers. This characteristic is crucial in scenarios where rework or repairs are necessary. The robust adhesion between copper layers and the substrate ensures the integrity of the PCB during these processes, reducing the risk of damage or delamination.

6.Excellent price/performance ratio:

TLF-34 provides an excellent price/performance ratio, making it a cost-effective choice for commercial applications. It combines desirable attributes such as low loss, high-frequency stability, temperature resistance, moisture resistance, and peel strength, all at a competitive price point. This makes TLF-34 a preferred option for projects that prioritize both performance and cost efficiency.

Challenges and drawback of Taconic TLF-34 PCB Laminates

While Taconic TLF-34 PCB laminates offer numerous advantages, there are a few challenges and disadvantages that should be considered:

1. Limited material options: TLF-34 is a specific type of PCB laminate offered by Taconic. While it provides excellent performance in certain applications, it may not be suitable for all requirements. Depending on the specific needs of a project, alternative materials with different properties or characteristics may be more suitable.

2. Limited availability: TLF-34 may have limited availability compared to more widely used PCB materials. This can be a disadvantage if a project requires a large quantity of PCBs or if there is a need for immediate availability. It is important to consider the lead times and availability of TLF-34 when planning a project.

3. Manufacturing complexity: TLF-34 PCB laminates may require specialized manufacturing processes compared to more common materials. This can result in higher manufacturing costs or the need for specific equipment or expertise. It is essential to consider the manufacturing complexity and associated costs when selecting TLF-34 for a project.

4. Cost considerations: While TLF-34 offers an excellent price/performance ratio, it may still be relatively more expensive compared to some standard PCB materials. The cost of TLF-34 laminates should be taken into account, especially for projects with strict budget constraints.

5. Design considerations: TLF-34 laminates may have specific design considerations due to their unique properties. Designers need to be aware of these considerations, such as the material’s thermal expansion coefficient, electrical properties, and compatibility with other components or processes. Proper design adjustments and considerations are necessary to optimize the performance and reliability of the PCB.

6. Limited application range: While TLF-34 is suitable for a wide range of commercial microwave and radio frequency applications, it may not be the best choice for every application. Certain specialized applications may require materials with even higher performance characteristics or specific properties that TLF-34 may not provide.

It is important to carefully evaluate these challenges and disadvantages in the context of a specific project’s requirements and constraints. Consulting with PCB manufacturers-JarnisTech, engineers, or material experts can help in making an informed decision regarding the suitability of Taconic TLF-34 PCB laminates for a particular application.

Taconic TLF-34 Vs Taconic TLF-35 and 35A PCB Materials

Taconic TLF-34, TLF-35, and TLF-35A are all high-performance PCB materials designed for microwave and radio frequency applications. While they share some similarities, there are also differences between them. Here’s a comparison of TLF-34, TLF-35, and TLF-35A PCB materials:

1. Dielectric Constant (Dk) and Dissipation Factor (Df):

TLF-34: TLF-34 has a relatively low dielectric constant and a low dissipation factor, resulting in low signal loss and excellent signal integrity.

TLF-35: TLF-35 has a slightly higher dielectric constant compared to TLF-34, which can affect impedance calculations and circuit performance. It also has a low dissipation factor, similar to TLF-34.

TLF-35A: TLF-35A has a lower dielectric constant compared to TLF-35, making it more suitable for applications where lower Dk is desired. It also has a low dissipation factor.

2. Thermal Stability:

TLF-34: TLF-34 offers excellent thermal stability, allowing it to withstand high temperatures without significant performance degradation.

TLF-35: TLF-35 also provides good thermal stability, similar to TLF-34, ensuring reliable performance in high-temperature environments.

TLF-35A: TLF-35A exhibits good thermal stability, similar to TLF-35 and TLF-34.

3. Mechanical Strength and Peel Strength:

TLF-34, TLF-35, and TLF-35A all have good mechanical strength and peel strength, providing durability and reliability in PCB applications.

4. Availability and Cost:

Availability and cost may vary for TLF-34, TLF-35, and TLF-35A. It is important to check with the manufacturer or supplier regarding the availability and pricing of these materials.

When choosing between TLF-34, TLF-35, and TLF-35A, consider the specific requirements of your application, such as operating frequency, signal loss, thermal management, and mechanical strength. Additionally, consider the availability and cost of the materials.

Applications of Taconic TLF-34 PCB Materials

Taconic TLF-34 PCB materials are well-suited for a range of applications in the field of microwave and radio frequency electronics. Here are some common applications where TLF-34 is frequently used:

1. Power Amplifiers: TLF-34 is an excellent choice for power amplifier applications. Its low loss and high-frequency stability help maintain signal integrity and minimize power losses, resulting in efficient power amplification. The stable performance of TLF-34 at high temperatures also makes it suitable for power amplifier circuits that generate significant heat.

2. Low Noise Amplifiers (LNA) and Repeater Power Amplifiers: TLF-34 is often utilized in the construction of LNAs and repeater power amplifiers. LNAs require low noise and high gain characteristics, and TLF-34’s low loss property helps preserve the signal quality and achieve optimal performance. Repeater power amplifiers, which amplify and retransmit signals, benefit from TLF-34’s stability and low loss, allowing for reliable signal amplification.

3. Passive Components: TLF-34 is commonly used for the fabrication of passive components such as transmission lines, striplines, and microstrip lines. These components play a crucial role in signal transmission and distribution. TLF-34’s low loss and high-frequency stability contribute to efficient signal propagation and minimize signal distortions in passive components.

4. Filters/Couplers: TLF-34 is suitable for the construction of filters and couplers, which are essential components in RF systems. Filters are used to selectively pass or reject specific frequency bands, while couplers are used for signal splitting or combining. TLF-34’s stability at high frequencies and low loss characteristics aid in the precise filtering and coupling of signals, ensuring accurate signal processing and transmission.

It’s worth noting that while TLF-34 is commonly used in these applications, the suitability of the material depends on specific design requirements and performance targets. Other factors, such as operating frequency, power levels, and environmental conditions, should also be considered when selecting TLF-34 for a particular application.

Considerations Factor When Use Taconic TLF-34 in PCB Fabrication

When using Taconic TLF-34 in PCB fabrication, several considerations should be taken into account to ensure optimal performance and reliability. Here are some key factors to consider:

1. Operating Frequency: TLF-34 is designed for high-frequency applications, typically in the microwave and radio frequency range. It is important to determine the specific operating frequency range of your application and ensure that TLF-34 can support those frequencies effectively.

2. Signal Loss: TLF-34 is known for its low loss characteristics, which is crucial for maintaining signal integrity in high-frequency circuits. Consider the acceptable level of signal loss in your design and verify that TLF-34 meets those requirements.

3. Thermal Management: TLF-34 has good thermal stability, but it is essential to consider the thermal characteristics of the material and the potential heat generated by your circuit. Adequate thermal management measures, such as proper heat sinking or cooling techniques, should be implemented to prevent overheating and ensure the reliability of the PCB.

4. Mechanical Strength: Consider the mechanical requirements of your PCB, such as the need for rigidity or flexibility. TLF-34 has good peel strength, but it is important to ensure that it meets the mechanical strength requirements of your specific application.

5. Design Constraints: TLF-34 may have specific design considerations due to its unique properties. For example, its thermal expansion coefficient may differ from other materials, requiring careful consideration during the design phase. Ensure that your design accommodates these considerations and that the TLF-34 material is compatible with other components and processes used in your PCB assembly.

6. Availability and Lead Times: Confirm the availability of TLF-34 and consider the lead times associated with its procurement. If you have time-sensitive projects, ensure that TLF-34 can be obtained within your required timeframe.

7. Cost Considerations: Evaluate the cost of TLF-34 and compare it to alternative materials. Consider the overall project budget and determine if the performance advantages of TLF-34 justify the cost.

8. Manufacturing Expertise: TLF-34 may require specialized manufacturing processes or equipment. Ensure that your PCB manufacturer has the necessary expertise and capabilities to handle TLF-34 effectively.

By considering these factors, you can make informed decisions about using Taconic TLF-34 in your PCB fabrication, ensuring that it is the right choice for your specific application and design requirements.


Taconic TLF-34 PCB materials have proven to be a valuable choice for high-frequency RF applications. With their low loss, high-frequency stability, and excellent peel strength, TLF-34 laminates provide engineers and designers with a reliable foundation for power amplifiers, LNAs, repeater PAs, passive components, and filters/couplers. Despite certain challenges such as limited material options and manufacturing complexity, the benefits offered by TLF-34 make it a preferred choice for demanding RF designs. By considering factors like operating frequency, signal loss, thermal management, mechanical strength, and design constraints, engineers can harness the full potential of Taconic TLF-34 PCB materials and deliver robust and efficient RF circuits.

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