< img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=1724791474554128&ev=PageView&noscript=1" />

Ventec VT- 901

  • Premium quality Ventec VT- 901
  • Wide variety of Ventec VT- 901
  • Erfahrene Ingenieure und Designer
  • Exzellenter Kundenservice

General Information of Ventec VT-901

Hohe Tg(Tg250°C)and Extreme Operating Temperature
• High Thermal Resistance(Td390°C)and Several
• AssemblyProcessing.Improved FractureToughness
• LowZ-axisCTEfor ThroughHole Reliability


Availability of Ventec VT-901

VT-901TC laminates are available in thicknesses from 0.004″ to 125″ with copper foil thickness of 0.004″ to 125″ 1/2 oz to 3 oz;

we usually use double-sided and single-sided copper foils, but double-sided and reverse-sided copper foils are not suitable for VT-901 laminates because the peel strength is not as good as traditional materials.

VT-901PP prepreg is available in various E-Glass styles such as 7628, 76291506, 1500, 2113, 2313, 3313, 2116.

VT-901 Prepreg shelf life

1. Short term (3 months):keep temperature below 23°C and relative humidity below 55%.

2. For long-term storage (6 months):keep the temperature below 5°C and the relative humidity below 55%.

3. Long-term preservation of prepregs must be placed at room temperature for more than 4 hours before use, requiring ultraviolet light and strong light irradiation.

4. Expired prepregs should be re-tested to confirm their characteristics before use.


Ventec VT- 901 description

Venture is an authorized supplier of high-quality Ventec VT- 901 in China for over 10 years now! As a professional, we manufacture top-quality Ventec VT- 901 with our advanced production facilities. We also have the right tools and equipment to manufacture superior quality Ventec VT- 901.

Our 10 years of experience is a guarantee that we can supply you the highest-quality Ventec VT- 901 that will suit your requirements and needs.

Your Leading Ventec VT- 901 Supplier in China

Ventec VT- 901 article 1

Venture manufactures premium quality Ventec VT- 901 with Tg 250˚C transition glass temperature. We supply Ventec VT- 901 available in sheet or panel form.

We designed Ventec VT- 901 with ¼ oz up to 6 oz copper foil. Our Ventec VT- 901 prepregs are also available in panel or roll form.

Our Ventec VT- 901 is also made from different varieties of e-glass styles. Aside from that, our Ventec VT- 901 is manufactured with the following features:

  • High Td
  • Enhanced fracture toughness
  • Niedriger Z-Achsen-CTE
  • Meets NASA requirements for zero bromine visibility

Ventec VT- 901 article 2

Because of its advanced features, our Ventec VT- 901 can be suitable for the following applications:

  • Burn-in and military board
  • Chiphersteller
  • Backplane/power supply
  • Flight/engine controls

Venture Ventec VT- 901 is approved with UL E214381 and more industry quality standards. Therefore, you can assure that our Ventec VT- 901 is manufactured with professional quality!

Are you a distributor or electronic engineers looking for a top-quality Ventec VT- 901? Venture is your best supplier!

We always aim to help skyrocket your business and projects in the market. To be your best supplier, we offer Ventec VT- 901 along with great deals!

To support you, we offer Ventec VT- 901 with the best price with the best delivery options. We also provide flexible payment terms without minimum order required!

For more inquiries, you can contact call or email us. Our friendly customer service team will guide and assist you with our transactions!

Send inquiries for your next Ventec VT- 901 orders!

Ventec VT-901: The Ultimate FAQ Guide


All information you’re looking for about Ventec VT-901 is right here.

From classification, properties, features, qualities to alternative materials that can replace this Ventec-Leiterplattenmaterial – you will find all information right here.

Keep reading to be an expert in Ventec VT-901 material.

What is Ventec VT-901?



The Ventec Group manufactures the Ventec VT-901 product for use as a dielectric layer in circuit boards.

You find the VT-901 to be a polyimide-based material that is highly reliable with a high glass transition temperature.

You can employ VT-901 in wide usage in printed wiring board construction to achieve decent performance.

What are the Types of VT-901?

You find both Laminate and Prepreg materials of Ventec VT-901 can achieve diversity of use.

With each separate variation, you can find the VT-901 with the most effective for your application.

Common Ventec VT-901 derivations you have at your disposal are:

What are the Qualities of the Ventec VT-901?

You find several impressive features on Ventec VT-47, making them highly popular in the manufacture of PCBs.

You derive the following benefits from employing VT-901 in your applications:

  • Ability to operate at extreme temperatures with a high glass transition temperature of over 250 0
  • You find VT-901 capable of tolerating multiple assemble processes.
  • Thermal resistance of VT-901 is impressive, with the temperature of decomposition at about 390 0
  • You note the tendency of VT-901 to fracture when subjected to extreme conditions is low.
  • The Ventec VT-901 has a low coefficient of thermal expansion, especially in the z-axis.

Why is Low Z-axis CTE Desired for VT-901?

The coefficient of expansion of a material informs the material’s dimensional response when subjected to temperature changes.

When you increase a material’s temperature, there’s a likelihood of a change in the material’s form or structure.

You observe dimensional material changes along the x, y, and z axes, with changes in the z-axis considered more.

You note several components of the VT-901 along the z-axis, such as through holes.

Through-holes inboard, construction performs two essential roles of providing interlayer connectivity and creating paths for thermal dissemination.

Consequently, you note that changes in the material structure along this axis interfere with the through-holes make-up.

Expansion can cause your through-holes’ outer walls to be separated from the VT-901, resulting in cavities.

These cavities can act as heat traps or zones that can eventually damage your board due to thermal strain.

When this happens, you fail to achieve the through-hole role, leading to poor board connectivity and thermal management.

Therefore, you find low expansion in the z-axis suitable as it promotes the reliability of the through-hole.

Where can you use VT-901?

Many modern electronic products employ printed wiring boards for their circuitry due to their simplistic design and ease of use.

You use Ventec VT-901 in the wiring boards of various electronic equipment in multiple industries.

You will find Ventec VT-901 employed in the following areas:

  • Chip manufacturers use Ventec VT-901 for making chip packages.
  • Many control equipment, such as engine controls and flight controls, employ VT-901 in their structures.
  • You will find power supply equipment employing VT-901 in their circuit boards.
  • You note the high reliability when operating in an extreme temperature environment allows VT-901 in military equipment.
  • Burn-in boards employ VT-901 in their circuitry.

What Copper Weights are Employed for Ventec 901 TC Laminates?

Ventec VT-901 TC laminates employ copper films in their layer configuration for use as signal planes.

You note that the classification of copper films used is in terms of their weight given in ounces (oz).

You describe a single oz copper thickness as achieved when you spread the film over a square foot.

You can employ copper with weights from as low as half an ounce to three ounces for your VT-901.

What is the Thickness of a Ventec VT-901 TC Laminate?

The thickness of a VT-901 Laminate is the measure of its depth across the multiple layers.

The individual layers you have in a laminate contribute to the overall thickness set upon lamination.

You realize that the thickness of a Ventec VT-901 Laminate influences the design of the thermal management system.

Additionally, the laminate thickness can be affected by the thermal expansion coefficient requiring particular attention.

You will find VT-901 TC Laminates with a wide range of thicknesses depending on their areas of application and design.

There are such laminates with a thickness of as little as 0.004” to those reaching 0.125“.

Are Treated Copper Films used In Ventec VT-901 TC Laminates?

You undertake copper treatment processes such as chemical roughening to improve its surface bonding ability during the lamination process.

When treating copper films, you perform treatment on either a single surface or both surfaces.

Furthermore, when treating a single surface of a copper foil, you can treat the front or reverse sides.

There are Ventec VT-901 TC Laminates that you can find furnished with treated copper films.

However, you find limited use of copper foils that are reverse treated and double surface treated.

The limitation of their service is the low peel strength exhibited in VT-901 laminates, unlike standard materials.

What is the Difference Between VT-901PP HW and VT-901PP NF/LF Polyimide?

You note that the VT-901PP HW and VT-901PP NF/LF Polyimide are variations of prepreg materials with different performance features.

The VT-901PP HW is a polyimide prepreg that is filled with ceramic and has high performance.

You find this particular prepreg is useful where you have a multilayer polyimide construction with heavy copper.

In this instance, you employ the VT-901PP HW to fill the etched areas.

You can also employ this prepreg as a filler for holes used for clearance in metalized cores.

You observe that the filler lowers shrinkage while preventing cracks formation when through-holes are bored in this area.

The VT-901PP Polyimide No Flow and Low Flow prepreg is a resin-based product typically employed in Flexi-rigid applications.

You use this material is to regulate flow while ensuring greater strength in bonding.

Why is the CTI of Ventec VT-901 Essential?



The Comparative Tracking Index is useful in determining an insulating material’s resistance to electrical breakdown.

Consequently, you find this index important for Ventec VT-901 laminates and prepregs in isolating conductive layers.

Tracking occurs on the surface of a non-conductive material upon exposure to charring heat.

You observe that the heat breaks the surface interfering with the structural properties and integrity of the material.

You discover that this can alter the material’s conductivity allows the passage of current through the material.

However, the high resistance exhibited will increase generated heat, leading to potential failure.

Ventec VT-901 is made with a low Comparative Tracking Index to safeguard against the adverse effects of current transfer.

You note this is especially significant due to the electrical insulation role played by VT-901 in PCBs.

How many E-glass styles are used in VT-901PP Prepreg?

E-glass refers to electrical grade glass, a name derived from its initially intended use with electrical wires as an insulator.

You find E-glass is free of alkali and makes an impressive reinforcing material for fiberglass material.

E-glass make fine glass filaments used with prepreg material used in Ventec VT-901, offering strength and lightness.

You have different E-glass styles available for VT-901 Prepregs, such as 7628, 1506, 2116, and 3313.

What are the Flammability Classifications used for Material like Ventec VT-901?

You employ flammability classification for plastic-based products highlighting the least to the most flame-retardant.

The least flame-retardant material easily combusts, whereas most flame retardant does not burn up quickly.

You carry out the flammability test on a horizontal or vertical specimen of the test material.

The following are typical classifications employed for materials in ascending order, including VT-901:


You use this classification for materials with a horizontal specimen and whose rate of burning is slow.


In this classification, you use a vertical specimen while avoiding the dripping of flaming parts. Furthermore, the combustion process takes less than thirty seconds.


You also find the use of a vertical specimen with this classification and a burning interval not exceeding thirty seconds. Additionally, you prevent the inflammation of specimen parts.


With this classification, you avoid parts’ inflammation while the vertical specimen’s combustion process occurs within ten seconds.


Here, you observe burning ceases inside of sixty seconds with the vertical specimen being drip-free. You may note the creation of a hole like a feature in some specimen.


Similarly, you observe less than a minute of burning without dripping off the vertical specimen.

A notable difference you will find between this classification and the 5VB is the absence of a hole.

Is Ventec VT-901 Affected by Relative Humidity?

The amount of moisture present in the atmosphere at any given time and point is the relative humidity.

You find relative humidity is an essential condition of storage for Ventec VT-901 alongside temperature.

The two storage conditions will affect the longevity of VT-901 in a useful state by determining its deterioration.

Typically, you realize that the lower the storage temperature and humidity, the longer the shelf life of VT-901.

You find different shelf lives for the VT-901 Prepreg and Laminate, with the Laminate offers longer shelf life.

You can achieve a shelf life of about twenty-four months when you airproof the VT-901 Laminate at room temperature.

What happens when a VT 901PP Prepreg Exceeds Shelf life?

The shelf life of a product is the period you can keep it in storage before subjecting it to useful employment.

You note that the shelf life is affected by different factors, including temperature, relative humidity, and package type.

The VT 901PP prepreg has a shelf life of between three and six months relative to the storage conditions you provide.

Therefore, when you store a prepreg for longer than six months, it is considered to have exceeded its shelf life.

When a prepreg exceeds its shelf life, you subject it to retests to determine its current properties.

It could be that the extension may not have depreciated its qualities, allowing you to use it in its present state.

What is the Desmearing Process of Ventec VT-901?

You use the desmearing process to clean the drilled holes in the VT-901.

In this process, you remove the melted resin that resulted from the friction-induced heat during the drilling process.

You note the rate of desmearing when done for Ventec VT-901 is lower compared to the FR-4’s.

You attribute this to the need to carry out a few modifications to polyimide materials’ desmearing process.

What is Cold Pressing of Ventec VT-901?



Cold pressing is when you subject your press conditions to relatively lower temperatures during the lamination process.

When carrying out a cold press, you use water to maintain the plate at room temperature.

You also adjust other pressing conditions such as the pressure and the curing time.

You find a pressure of a hundred pounds per square inch sufficient for the process.

Furthermore, you need to maintain the conditions for at least sixty minutes before achieving the required press.

You cannot carry out both a hot press and a cold press for the same laminate.

Can you Drill multiple stacks of Ventec VT-901?

You carry out the drilling process for VT-901 upon completion of the lamination process.

You find the drilling process demands high precision to prevent the boring holes with the wrong fit and at the wrong positions.

When drilling, you use a preferable stack thickness of 1.6 mm for Ventec VT-901 to simplify the process.

However, you can carry out the drilling process on up to three stacks when faced with an extensive production batch.

You note that working on multiple stacks requires more attention and precision to prevent misalignment and other related drilling deficiencies.

For instance, you appropriately position the laminate stack up with one laminate over the other with straightened edges.



Is Moisture Absorption a Concern for VT-901 Laminates and Prepregs?


Moisture absorption is the tendency of a material to soak up moisture or water content from the external environment.

You find the presence of moisture in a non-conductive material influences its electrical conduction properties.

VT-901 products have a low moisture absorption rate to maintain their insulating property.

You observe that a leakage current causes the water to ionize in an insulating material, causing minimal material conductivity.

Conductivity is discouraged in VT-901 since it serves as an isolation layer for the conductive copper layer(s) in your PCB.

Therefore, when you allow passage of electric charge flow, it results in ineffective board performance.

What are the Properties of Ventec VT-901?

You have different Ventec VT-901 properties, which you classify into three distinct thermal, electrical, and mechanical properties.

You note that these properties allow for your use of the VT-901 in different applications.

You find the following thermal properties common to your VT-901:

  • You experience a high temperature of glass transition and decomposition temperature when using VT-901.

You can achieve a temperature of glass transition of about 250 0C with a decomposition temperature of over 390 0C.

  • Another thermal property you associate with the VT-901 is the coefficient of thermal expansion, where a lower value is preferable.

While expansion occurs along all three-axis, you pay more consideration to the z-axis expansion.

  • Additionally, you identify thermal stress to be a critical thermal property for your VT-901. Thermal stress informs you of the temperature value upon which the VT-901 begins to succumb to temperature increase.

Some of the electrical properties you associate with the VT-901 are:

  • The dielectric constant and the dissipation factor which you have provided for frequencies of up to one gigahertz.
  • You also have volume resistivity and surface resistivity as important electrical properties for your Vt-901. You find volume and surface resistivity to be dependent on the e-glass used and its moisture resistance.
  • Also imperative to your VT-901 is the electrical strength that describes the voltage transferrable per unit distance.
  • Your VT-901’s dielectric breakdown provides you a voltage value upon which the material permits movement of charge.
  • Similarly, you have the Comparative Tracking Index (CTI) and arc resistance of your VT-901 as central electrical properties.

The mechanical properties you need to assess for your VT-901 are:

  • The peel strength of your Ventec VT-901 at standard conditions and upon experiencing thermal stress.
  • Additionally, you must determine the flexural strength of your VT-901 subject to warping and filling.

How do you Choose Ventec Aluminum Base Laminate?

You employ Ventec Aluminium Base laminate in various applications such as LED lights, motor drives, and power converters.

You find choosing Ventec Aluminium Base laminate is dependent on several factors encompassing its composition and electrical and mechanical performance.

Some of the factors you consider when selecting a Ventec Aluminium Base laminate include:

  • The laminate’s thermal conductivity is influenced by
  • electrical and mechanical properties, including dissipation factor, dielectric constant, and peel strength.
  • The area of application of the Ventec Aluminium Base laminate allows you to establish the required flammability classification.
  • The chemical composition of the aluminum laminate is equally vital as you may need it to be halogen-free.
  • The type of glass reinforcement influences the aluminum plate’s required thickness alongside that of the copper plate’s dielectric layer.
  • The styling you require for the aluminium plate, such as anodizing.

Are there Alternatives to Ventec PCB Material?

The application needs and the material’s thermal, electrical, and mechanical properties influence your Ventec PCB material choice.

Some of the properties you find essential are the glass transition and decomposition temperatures, the dissipation factor, and peel strength.

There are other PCB materials you can employ for your application instead of Ventec PCB material.

You note these materials offer you similar electrical, thermal and mechanical properties as the Ventec PCB material.

Some of the products you can employ as an alternative to Ventec PCB material include:

  • You can employ Isola materials as a substitute for Ventec PCB material in different applications. You can get Isola material with both standard and high glass transition temperature quality used for rigid PCBs.
  • When making circuits with high-frequency demands, you can use Rogers PCB material instead of Ventec material. You can achieve different thicknesses for circuit boards with this material measuring between 0.3 – 1.6 mm.

Depending on your specific needs and requirements, Venture Electronics offers a range of Ventec materials for PCB-Herstellung.

Kontaktieren Sie uns jetzt for all your Ventec VT-901 material needs.

Nach oben scrollen