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  • RoHs Compliant
  • Over 10 Years’ Experience
  • Wide array of Tg150
  • Excellent Quality

1. What are the common TG170 material?

There are many material types that can meet TG170, the common we have in stock is: IT180A, S1000-2, S1170, KB6167.

We are also able to get the material you specified, like TU768, FR406, FR408, IS410. Every PCB has a different TG value based on it’s substrate.

High TG pcb performs better at higher temperature with better stability, if your pcb is for high standard application, it is recommended to use TG170 material

common TG170 material
a reliable TG170 PCB

2. When do you need a reliable TG170 PCB?

When your application needs to be subjected to higher temperatures, and you will need a high TG PCB when the product is operating at a high temperature above 150 degrees.

When your products is exceeding 150 degrees, make sure to use high TG pcb on it, remember to use high TG PCB rather than a normal printed circuit board.

3. Can the TG170 pcb support Lead free assembly?

Yes FR TG170 material can support with lead free assembly. FR4 TG170 can withstand the high temperatures of soldering and reflow in lead-free assembly process.

It meets the characterization specifications for lead-free assembly.

It also meets the newer requirements of lead-free assembly.
Therefore, it will guarantees the good performance throughout the range of higher temperatures of lead-free soldering.

Can the TG170 pcb support Lead free assembly?

Venture offers PCB with TG170 base PCB boards. Most of the standard multilayer boards use these FR4materials.

Venture designed Tg170 to improve the heat resistance, chemical resistance, moisture resistance, stability resistance of your circuit board. It produces better temperature resistance of the sheet, especially in the lead-free process.


Your Leading Tg170 Supplier in China

A PCB board with a typical Tg ≥ 170 ° C is called a high Tg board. Venture is manufacturing a wide range of Tg170 material for better dimensional stability and more resistant to deformation.

We manufacture excellent quality Tg170 for the electronics industry, such as the electronic products represented by computers. Because the development of high multi-layer and high functionality requires the higher resistance of PCB substrate materials.

Venture Tg170 is suitable for the high TG PCB circuit board. It is made with FR-4 board material. We can produce Tg170 with OSP (organic solderability preservative) surface treatment, and with green solder mask.

Our Tg170 raw material is well known in the LED industry. It is because the heat dissipation of LED is higher than normal electronic components.

If your PCB working temperature is higher than 170/180C, like 200C, 280C, or even higher, then we recommend you use our Ceramic board which can go through -55~880C.

If you are looking for an expert manufacturer of TG170 for your PCB, Venture is the best place to rely on. We’ve been designing high-quality tg170 materials for more than 10 years.

We are committed to excellence and innovations in our Tg170 products. Venture is an expert in providing satisfying products to our clients.

As a reliable manufacturer, we can provide 24/7 sales and tech support teams and professional after-sale service. We will be your best partner for your business.

Please feel free to contact us anytime!

Tg 170: The Ultimate FAQ Guide


If you have any question about Tg 170, you will find the answer right here.

This guide will help you understand every aspect of TG 170.

Let’s dive right in.

What is Tg 170?

Tg 170 is a high glass transition temperature where the solid PCB materials change to rubber like material.

You can operate your PCB with Tg 170 in high temperatures as long as it does not exceed 170 degrees centigrade

TG 170 PCB

TG 170 PCB

What are the Features of PCB Tg 170?

The best way to identify the glass fabric-based epoxy resin copper clad laminate is by looking at the features.

You ought to look at the features because they are the most unique description that will detail the Tg 170.

Here are the features that you must identify to really ascertain a PCB with Tg of 170 degrees centigrade.

Glass Transition Temperature (Tg)

The most important identifier that you can focus on is the Tg where the materials change from solid to rubberlike substances.

In your tests, you must achieve a temperature of 170 degrees centigrade before the solid-state changes to soft rubberlike materials.

Great Thermal Delamination Properties

You will also note that there is difficulty when it comes to weakening of bond of the PCB laminates.

Implying that, PCBs with Tg 170 have great laminate bonds that will not give way even at very high temperatures.

Excellent Heat Resistance

Still in the matter of high temperatures, you will also note that Tg 170 PCBs have very good heat resistance properties.

You will not experience damages on devices with Tg 170 under high temperatures as long as it does not exceed 170.

Lead Free Assembly

In addition to the above features, we ensure that we manufacture the Tg 170 PCBs with no lead materials.

You are, therefore, safe when you use these materials and you will also reduce the possibility of environmental pollution.

ANTI-CAF Properties

PCBs with Tg 170 also have Anti-CAF properties which help in preventing damages that occur from oxidation.

You will can rest easy that these properties only help in increasing durability of the PCBs with Tg 170.

What are the General Properties of PCBs at Tg 170?

Another form of identification that you can use on PCBs with TG 170 is by looking at the properties.

All PCBs with Tg 170 exhibit particular properties that define their working conditions.

Here are the main properties that you should have a look at in consideration to Tg 170.

Physical or Mechanical Properties

Here, you will look at the behavior of the materials with Tg 170 when you apply mechanical forces on them.

Some of the factors to consider when looking at physical properties of materials with Tg 170 are:

i. Peel strength wit a value of 1.30 kgf/cm or 1.25 kgf/cm depending on the test conditions.

ii. Flexural Strength with a value of 589 or 456 N/mm2 depending on the test conditions

iii. Arc Resistance with a value of 125 Sec.

Thermal Properties

The thermal properties will dictate the behavior of these materials when you expose them to heat of various temperatures.

In this case, some of the properties that you should pay close attention to are:

i. Glass Transition Temperature of 170 degrees centigrade.

ii. Flammability with a V-O rating under UL-94 test method

iii. Coefficient of Thermal Expansion (CTE) along the Z and Z/Y – Axis expansion

Electrical Properties

You should also observe the behavior of materials with Tg 170 degrees centigrade when you expose them to electrical fields.

Here, the main properties that you should have a look at are:

i. Surface Resistance with a value of 1.0×107

ii. Volume Resistance of 1.0×109

iii. Dielectric Breakdown with a value of 70 KV

iv. Dielectric Constant with a value of 4.5

v. Dielectric Strength of 44 Kv/mm

vi. Loss Tangent of 0.018

Chemical Properties

You must also concentrate on the reaction of these materials when you expose them to various chemical elements.

The main chemical properties that you ought to concentrate on are:

i. Anti- CAF Properties with value of 1000%

ii. Rate of Moisture Absorption with a value of 0.15%

To achieve the above results, there are special conditions that we must look at which are:

  • Maintenance of the original shape of the materials
  • Humidity Conditioning
  • Temperature conditioning
  • Immersion in distilled water for temperature conditioning

Which Applications Require the Use of PCB Tg 170?

Well, there are numerous applications where high temperatures take center stage during the operations.

Under such applications, you should consider using high glass transition materials such as Tg 170 materials.

Here are some of the applications where Tg 170 come in handy.

Computer Applications

In the modern world, technological advancements place a lot of pressure on computers even under high temperatures.

It is the same reason why we have computers with Tg 170 that can handle high temperature conditions.

Communication Equipment

You should also note that most of the communication infrastructure go through a great deal of heat and high temperatures.

To ensure proper function of this equipment, you will have PCBs with Tg 170 that will enhance performance of the equipment.

Office Automation (OA) Equipment

You will also have the PCBs with Tg 170 degrees centigrade on office automation equipment for accomplishment of different tasks.

Having high glass transition temperature materials such as Tg 170 degrees will help withstand the high temperature working conditions.

Which Information Do You Require to Order PCB Tg 170?

You ought to follow a specific criterion whenever you are ordering for the PCB Tg 170 materials.

In that light, there are specific ordering information that you should have at your fingertips.

In other words, when you order for the Tg 170 printed circuit boards, you should provide:

  • Base Color of the materials which can be yellow or any color you prefer
  • Dimensions such as thickness of the materials which can range between 0.05 to 3.2 mm
  • Copper cladding which can be 18/35/70/105 micro meters.
  • Regular Sizes which can be 1092 mm by 1245 mm, 940 by 1245 mm or 1041 by 1245 mm

Which Group Does the PCB Tg 170 Belong To?

PCB Tg 170 belongs to the high temperature glass transition group.

This is a very high temperature region where polymers will transition from hard glass like materials.

An increase of the temperatures beyond this point results into a soft and rubberlike material.

You will also realize that circuit materials at this high Tg range can never burn but change its form.

So, any Tg that goes beyond 170 degrees centigrade is under the high Tg group.

High Tg PCB

 High Tg PCB

What are Some of the Materials for Manufacturing PCB Tg 170?

There are different materials that you can use in the manufacturing process of printed circuit boards.

Well, to manufacture printed circuit boards with Tg 170, you have to choose special types of raw materials.

Some of the raw materials that you should use in this case include:

  • S1170 & S1000-2
  • FR406, FR408, IS410 & DS370HR
  • MCL-E-679
  • N4000-6 & N4000-11

How Does the General PCB Tg Compare to the High PCB Tg?

Since there is a wide range of glass transition temperatures, you have to expect highs and lows.

Due to such expectations, you will also realize various classifications of glass transition temperature.

In that case, we have the general or standard glass transition temperature and the high glass transition temperature.

General or standards glass transition temperature is the group that has the lowest Tg.

The temperature range runs below 140 degrees centigrade.

On the other hand, high Tg is a group that has the high glass transition temperatures.

Here, you will note that the temperature range starts from 170 degrees upwards.

Apart from the temperature range, you will also realize a difference in terms of stability.

Implying that, the higher the glass transition temperature range, the higher the level of stability.

In other words, high Tg PCB materials have greater stability in comparison to the standard or general Tg.

What is the Difference Between Moderate PCB Tg and High PCB Tg?

On the same note of Tg classification, you will realize the moderate PCB Tg and the high PC Tg.

Moderate PCB Tg falls within the mid-range of PCB Tg where the temperature ranges from 150 to 170 degrees centigrade.

On the other hand, high Tg classifies PCB Tg with temperature ranging from 170 degrees and above.

Obviously, the stability rule also applies in this case where the higher the Tg, the greater the stability.

In that case, high Tg materials have better stability in comparison to the moderate PCB Tg.

What are Some of the Quality Certifications for PCB Tg 170?

You will have better performance and longer durability of materials when you use high quality materials.

You can only ensure that the materials are of high quality by looking at the quality certifications.

Here are the main quality certifications that you should pay close attention to.

  • UL Quality Certification
  • ANSI/ AHRI Quality Certifications
  • CE Quality Certifications
  • International Standards Organization (ISO) Quality Certifications
  • RoHS Quality Certification

RoHS Standard TG170 FR4 PCB

RoHS Standard TG170 FR4 PCB

How Does PCB Tg 150 Compare to PCB Tg 170?

PCB Tg 150 and PCB Tg 170 have very different glass transition temperature ranges.

Tg 150 belongs to the moderate or medium Tg group while Tg 170 belongs to the high Tg group.

Tg 150 materials will change in state from hard glass like materials to soft rubber like materials at 150 degrees centigrade.

On the other hand, the same transition will happen on Tg 170 materials when the temperature reaches 170 degrees centigrade.

In addition to transition, there is a great difference between the stability of Tg 150 and that of Tg 170.

Tg 150 is less stable in comparison to Tg 170 which exhibits higher levels of stability.

What’s more, the higher the glass transition temperature, the higher the difficulty in mechanical processing.

Implying that, you will find it easier to mechanically process Tg 150 than it would be to process Tg 170 materials.

What is the Difference Between PCB Tg 130 and PCB TG 170?

On the same note of comparison, you can also opt for Tg 130 or Tg 170 materials.

You will classify Tg 130 under the standard Tg and the Tg 170 materials under high Tg.

Despite the difference in classification, the main difference is in the stability during manufacturing processes.

Here, you should know that the higher the Tg, the easier the mechanical processes.

You will experience difficulty in processing Tg 130 and much easier time in processing Tg 170.

Can You Use PCB Tg 170 on the Multilayer Printed Circuit Boards?

Absolutely, you can use Tg 170 on multiple layer printed circuit boards (PCBs).

Practically, most of the multiple layer printed circuit boards have very high Tg most preferably Tg 170.

Apart from the multilayer printed circuit boards, you can have the Tg 170 materials on other PCBs.

Some of the PCBs that have TG of 170 degrees centigrade include:

  • Single layer Printed Circuit Boards
  • Double Layer Printed Circuit Boards
  • Rigid Printed Circuit Boards
  • Flexible Printed Circuit Boards
  • Rigid-flex Printed Circuit Boards

How Does PCB Tg 170 and PCB Tg 180 Compare?

You will classify both Tg 170 and Tg 180 printed circuit board materials under high glass transition temperature.

High glass transition temperature is a group of PCB materials that have Tg which go beyond 170 degrees centigrade.

Despite the fact that the higher the Tg the greater the machining stability, you may encounter a problem.

You will find great stability of PCB material machining at 170 degrees but greater stability at 180 degrees centigrade.

You should, however, be very careful not go very high as that would cause problems with the machining stability.

Tg that goes beyond 180 degrees will start losing the machining stability thus making it difficult to process.

Can You Customize PCBs that Have Tg 170?

Yes, you can customize the PCBs with glass transition temperatures of 170 degrees centigrade.

All you have to do is provide us with the ordering information about the type of Tg 170 that you need.

In case you have a design in place, you can also share the design details.

If not, you can work with our design team who will go through every designing step with you.

As soon as the design is complete, we have to test it by building a prototype with your custom specifications.

If it works well, we will have to proceed with the manufacturing process of the custom PCB with Tg 170.

What are the Advantages of PCB at Tg 170?

The main benefits that you will experience with PCB Tg comes with the classification under High Tg.

One of the greatest benefits is the fact that they are stable in comparison to other PCB Tg.

Here are other benefits that you will experience by using the PCB Tg 170.

Great Dissipation of Heat

Well, the materials that you will use in the manufacturing process of Tg 170 have great heat dissipation capabilities.

You will not experience heat burdens on the devices as the materials dissipate heat from the PCB Tg 170.

Excellent Insulation Reliability

You can also rely fully on the insulation properties of the Tg 170 PCBs as it prevents leakage of electric currents and heat.

This property increases the advantage of the PCB materials to an extent where it becomes highly efficient.

Superior Processability

Due to the high Tg, you will also find it easier and simpler to process the Tg 170 PCB materials.

It is actually closer to the best processing temperatures of 200 degrees centigrade thus making processability simple.

Do You Have Size Limitations for PCBs with Tg 170?

No, we do not have size limitations when it comes to PCBs with Tg 170 degrees centigrade.

You will choose the right size of PCB Tg 170 materials according to your application specifications.

Apart from that, you may also rely on the standard sizes of Tg 170 materials that we have in place.

What are the Different Types of Surface Finishes for PCBs with Tg 170?

You must also ensure that the surface of the PCBs with Tg 170 degrees centigrade serves the purpose.

Implying that, you have to provide the perfect surface finish for the PCBs with Tg 170 degrees centigrade.

The perfect surface finish will not only improve the image of the PCB but also the performance of the PCB materials.

Here are some of the surface finishes that you can opt for.

 Immersion Gold TG 170 PCB

 Immersion Gold TG 170 PCB

  • Hot Air Solder Leveling (HASL) Surface Finish
  • Lead Free Hot Air Solder Leveling (LFHASL) Surface Finish
  • Electroless Nickle/Immersion Gold (ENIG) Surface Finish
  • Immersion Silver Surface Finish
  • Immersion Tin Surface Finish
  • Organic Solderability Preservatives (OSP) Surface Finishes

As you can see, there are many elements you need to know before option for Tg 170 for all your PCB fabrication needs.

If you have any question about Tg 170, feel free to contact Venture Electronics team.

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