• Over 10 years’ manufacturing experience
  • Fast turnaround
  • Eye-catching
  • Excellent customer service

Why is PCB red?

To understand the colors of PCB, we must be conscious that the coloring on a PCB is not the real color of the initial circuit. It’s the layer on the material of the FR-4 PCB. The color follow on each board is because the solder mask color, that protect the pure conductors on the panel.

A red PCB color code is normally used to resolution the circuit from other boards. The main impersonal of adopting a red PCB color code is to distinguish any tangible component in a collective assembly.

PCB red
Advantages of Red PCB

Advantages of Red PCB

Red PCBs could help you to connect all these field and use copper paths instead of wires so that relative tiny modules and wire saving are well to control.

Ø Easy to repair

Ø Fixed components

Ø Lesser chances

Ø Electronic noise reduction:

Ø Lower price

How red PCB is?

The solder mask or copper color choice should be so high that it contrasts well with the top copper wires, and they can be identified readily.
The colorful layer prevents the copper cables from short circuits. It also forms a protective layer against ordinary wear and scratches caused by extreme weather stress or any other potential cause for board deterioration.

As a leading color PCB manufacturer and supplier, Venture offers different colors of PCB such as red. You can even specify matte finish for red colors. We have the common colors of Venture PCB mostly are green, red, blue, yellow, black, and white.

Your Leading Red PCB Supplier in China

The best way of protecting your PCB is a solder mask. As a leading manufacturer, we can fabricate several colors for solder mask like green, red, white, black, blue, yellow, and many more.

Venture Red PCB helps protect your PCB from oxidation. We manufacture red PCB to prevent solder bridges from forming between solder pads that are close together.

Our red PCB looks professional and bold. The contrast between planes, trace, and empty space is good. However, the red PCB is observably lower compared to a green board.

Actually, there is no big difference between red solder mask PCB and green solder mask PCB. But, this Venture red PCB is eye-catching.

Venture red color helps in covering the defects. The same with yellow, red PCB has stable exposures, but the thickness effect on the impedance is large.

Along with our state-of-the-art technologies, Venture is capable of manufacturing different color PCB.

Try out our red PCB if you want an outstanding board.

Aside from the red PCB, Venture also an expert in manufacturing orange PCB, yellow PCB, green PCB, blue PCB, purple PCB, white PCB, and black PCB.

Venture has the best PCB solutions on the market and specializes in providing high customer service.

Red PCB: The Ultimate FAQ Guide


If you have any question about red PCBs, you will find the answer right here.

It’s because this guide covers all information you should know about red PCB.

Keep reading to learn more.

What is Red PCB?

Red PCB refers to a printed circuit board that used Red solder mask color.

The main function of PCB solder mask is to protect bare copper traces found in your PCB.

The solder mask is essential since it protects the circuit board against short-circuiting. It does this by preventing oxidation and minimizing solder bridges.



Is there a Difference Between Solder Mask and Solder Resist?

No, there is no difference between a solder mask and a solder resist. They all imply the same thing and their function is to protect the bare copper trances present on your PCB.

The main material for a solder mask or solder resist is glass-epoxy and is available in different colors.

What is the Importance of Silkscreen to the Functionality of Red PCB?

Silk screening is essential in the identification of all the tested points of your red PCB.

Silkscreen is also critical in providing relevant information that enhances the functionality of your red PCB.

Such information includes:

  • Warning symbols
  • Identifying unique numbers for each board
  • Locating part via reference designators
  • Parts polarity
  • Manufacturer logos

Does PCB Solder Mask Prevent the Occurrence of Solder Bridges in Red PCB?

Yes, a PCB solder mask prevents the occurrence of solder bridges in red PCB.

A solder bridge occurs when there is an unexpected short occurrence between electrical elements. These elements can be pads, traces of leads.

To prevent the short from happening, the solder mask forms a barrier between the electrical elements.

The solder mask also prevents solder bridges during reflow. This is by creating a wicking effect together with the tinned pads.

What is the Difference Between an LPI Solder Mask and a Peelable Solder Mask of Red PCB?

The main difference between an LPI solder mask and the peelable solder mask of red PB is in their functionality.

The function of a peelable is for the protection of specific areas on your red PCB. This is during wave soldering, reflow soldering, or during the surface finish.

This helps in preventing excess accumulation of the solder around the empty pads.

You can also use this mask on parts that you want to manually install after automatic assembly of the PCB

The type of surface finish that you have to use peelable solder mask are hard or soft gold PCB surface finish.

The use of a peelable solder mask here allows you to apply the right surface finish on the necessary PCB areas.

The function of an LPI solder mask is for the protection of the board’s naked copper. This lengthens the product’s shelf life while facilitating the assembly of high-quality PCBs.

Another function of an LPI is to offer the distinct red solder mask color for your PCB. While you have to remove the peelable solder mask, the LPI solder mask is a permanent feature of your PCB.

Which are the Essential Physical and Electrical Properties of Red PCB to Consider During PCB Material Selection?

You have to consider the following physical properties of red PCB during PCB material selection:

Strength and Durability

The red PCB material you select should be strong enough to continue functioning when you apply excessive force to your electrical device.  This assures you functional continuity in case your electrical device falls.

High Quality

A properly functioning red PCB should be of high quality and reliable to ensure that your red PCB functions properly. High quality also makes it possible for hardware updates without having to interfere with other components making up the PCB board.

Red PCB Thickness

Thickness affects the strength and functionality of your red PCB. The thicker the red PCB, the higher the ability to offer support during the connection of heavy objects.

Track Distance

An ideal track distance for red PCB should be at least two inches. This is critical in establishing the impact of the transmission line, especially when evaluating the signal’s integrity.

Vias Condition

A proper functioning red PCB should not have empty vias. This is to offer protection against impurities like dust.

Filled vias increase their current conduction ability.

Main Electrical Properties of Red PCB

Electrical Strength

This is the ability of the red PCB to resist the breakdown or failure of an electrical system. This means that your red PCB should be strong enough to resist this breakdown without interfering with its function.

An effective red PCB should have an electrical strength of between 800V/mil and 1500V/mil.

Red PCB Assembly

Red PCB Assembly

Volume Resistivity

This is the ability of your dielectric PCB to resist insulation or electricity. An effective red PCB should have a volume resistivity of 10 mega ohms-cm.

You have to consider a dielectric material with a higher volume resistivity when selecting your red PCB.

Surface Resistivity

This is the ability of your dielectric material to resist both insulation and electricity. Factors that affect the surface resistivity of your dielectric material are low and high temperature and moisture.

Dielectric Constant

Factors that affect the dielectric constant are impedance, frequency, and signal integrity. An increase in the frequency causes a decrease in the efficiency of the dielectric constant.

An effective red PCB should have a dielectric constant of between 3.5 and 5.5. You should consider a dielectric material with strong and stable surface resistivity.

What is the Difference between Thermal Conductivity (k) and Coefficient of Thermal Expansion (CTE) of Red PCB?

Thermal conductivity refers to the rate of heat transfer through the PCB.

On the other hand, the coefficient of thermal Expansion refers to the expansion rate for your PCB as heat flows through.

Thermal conductivity deals with heat transfer while a coefficient of thermal expansion is the expansion rate.

The measure for thermal conductivity is W/m while the measure for a coefficient of thermal expansion ppm.

What is the Recommended Water Absorption Value (%) for Red PCB Material?

The recommended water absorption value for red PCB material is less than 0.2%.

A higher value than this can affect the thermal and electrical properties of a particular dielectric.

How do Decomposition Temperature (Td) and Glass Transition Temperature (Tg) of Red PCB Compare?

Decomposition temperature refers to the temperature of your red PCB which causes decomposition. This value should always be less than the solder temperature.

The glass transition temperature is the temperature that changes the status of your PCB from soft to hard.

Like the decomposition temperature, the glass transition temperature should also be lower than the solder temperature.

The measurement for both the decomposition temperature and glass transition temperature is °C.

How do you Manage the Effects of Red PCB Material Properties on the Fabrication of your Board?

You can manage the effects of your red PCB material properties on the fabrication of your board by following steps:

Identifying Best Board Design Material

You have to select a material that best defines your PCB requirements. For this to happen, you have to compare the correlation material properties and the board type.

The PCB material that you select should withstand the design requirement that you want.

Identifying the Board’s Stack Up

It is critical to determine the board’s stack up that you intend to have. While determining the board’s stack up, you have to pay attention to the thickness values for each layer.

These values have an impact on the PCB’s material properties.

Understanding the PCB’s Fabrication Process

Understanding the entire PCB fabrication process helps in selecting various aspects of your PCB like material selection. This helps in facilitating the turnaround time and the overall production cost.

What are the Benefits of Using Red PCB?

A red PCB gives a professional outlook for your electrical system. This is critical when you want your electrical unit to have a visual appeal.

It is easy to contrast the elements of a red PCB compared to other colors. This helps in distinguishing between the empty and plane.

You are also in a position to inspect the traces of your PCB. It is easy to clean the flux residue when using a red PCB than the other colors.

Which are the Common Red PCB layout Parameters to Consider?

Common red PCB layout parameters refer to all the specifications that you should include in the package file.

These packages help your manufacturer in fabricating your circuit board resulting in the desired output.

There are two types of red PCB layout parameters to consider, that is, design for fabrication and design for assembly. Common red PCB layout parameters to consider are:

  • Board edge clearance
  • Solder mask clearance
  • Annular ring size
  • Drill hole ratio
  • Clearance and creepage distance

What is the Purpose of Red PCB Footprint?

PCB footprint refers to an electrical component pattern which you have to solder together on your PCB. You need a footprint if you are to solder a large ball grid array, mount capacitor, or a through-hole capacitor.

What is the Difference between Footprint vs. Land Pattern of Red PCB Components?

A footprint is the real physical size of your red PCB component. The land pattern is the pad’s size and outline for a specific part that you have to design on your PCB.

How does Incorrect Pad Sizes Affect the Fabrication process of Red PCB?

Incorrect pad sizes result in negativity effect on your through-hole parts if the pads are small.

It also affects the solder joints on the surface mount technology components.

If the pads are large, they consume the entire space on your PCB which you can use for other components like trace routing.

The large pad size can also cause floating out of the position of the SMT parts when soldering.

What is the Recommended Via Hole Plugging for Red PCB?

The IPC 4761 type VI that is covered and filled is preferred via hole plugging for red PCB. this is because it fills the target hole.

Which is the Best Surface Finish for RoHS Compliant Red PCB Assembly?

The best surface finish for your RoHS compliant red PCB assembly is electroless nickel immersion gold (ENIG).

This is because it is relatively cheaper compared to the other types of surface finish.

ENIG does not react negatively to the components present on your PCB. this surface finish is also relatively easier to solder.



Why is it Important to Maintain a Clearance Between the Routing Outline and Copper Areas?

It is important to maintain a clearance between the copper areas and your routing clearance to avoid short-circuiting.

Short-circuiting can hurt your electrical product.

The proximity between the copper areas and the routing outline can also result in undesired connections.

How do you Design a Red PCB with Controlled Impedance?

Designing your red PCB with controlled impedance involves the following steps:

Determining the Signals that need CI

The first step is to determine which signal net needs a certain control impedance. If you have not specified which signals require control impedance, your vendor should do this by reviewing your datasheet.

Schematic Explicate with the Requirement of the Impedance

Designing the red PCB begins with your vendor designing your circuit schematics. The vendor should specify the controlled impedance signal and also clarify the specific nets to use.

As a practice, your vendor should add P or N polarity after the specific net.

Specify Trace Parameters for your CI

The description of your red PCB is based on the width height, dielectric constant, or thickness.  You must check on these specifications when designing controlled impedance PCBs.

A quick way of doing this is by giving your manufacturer details about your control impedance. Such details include impedance trace value and several layers and the materials to use.

Which are the Impedance Mistakes to Refrain from when Specifying Impedance Control for Multilayer Red PCB?

Common impedance mistakes to refrain when specifying impedance control for multilayer red PCB are:

Unreasonable Impedance Targets

Average impedance tolerance lies in the range of +/- 10%.

You need to avoid using a higher impedance tolerance since it can result in reworking your PCB.

It is therefore critical that you should check on the range of your impedance before submitting it to your vendor.

Trace Width Inconsistencies

Every PCB layer should have one trace width for it to function appropriately.

You, therefore, have to specify the trace width that you want to use before submitting it to your vendor.

Stack Up and Notes Inconsistencies

You should submit the information that matches your documents.

A contradiction of information on the CAD design image and specifications results in production delays.

Other types of information inconsistence also result in delays in the production of your PCB.

Layer Specification Failure

Failure to specify the number of layers for your PCB can cause a delay.

While specifying the number of layers, you also should include the components for each layer.

Lack of proper specification leads to delays and unnecessary works on your PCB.

What is Red PCB Design for Manufacturability?

This refers to the organization of your PCB layout topology such that there are minimal issues during the manufacturing and assembling process. It is a process that involves two main components:

Design for Fabrication (DFF)

This step usually takes care of fabrication-related issues.

Design for Assembly (DFA)

This step takes care of issues arising during the design of your PCB.

Having a design for manufacturability is critical in reducing your product cost and development time. this includes

  • Facilitating the optimizing the manufacturing process
  • Timely launching of product
  • Maximizing the quality production and quality of compliance.

It is therefore critical that you check on the design manufacturability rules before the production of your red PCB.

How do you choose the Best Design for Manufacturability Rules for Red PCB Design?

You should incorporate the following when selecting the best design for manufacturability rules for your red PCB:

Built-In Specifications

The advantage of incorporating this specification is it does not require editing or the creation of rules. However, its limitation is there is minimal alignment to the CM’s processes and equipment.

Industry Standards

Checking on your industry standards ensures you have the best design for your red PCB. Industry standards use standard rules and practices which ensures quality designing.

The limitation of industry standards is it does not use specific processes and equipment of your CM.

Your CM’s Guidelines

Submitting your CM guidelines reduces the lead time since you have all the specifications necessary. The availability of all the specifications reduces the overall cost of production.

However, CM guidelines involve editing and deleting the rules which are expensive and time-consuming.

What are the Key Manufacturability Mistakes to avoid when Designing Red PCB?

The major manufacturability mistakes that you should avoid when you are designing your red PCB include:

Not Informing your Vendor in Advance

You must inform your vendor in advance who can help in assisting you in designing your red PCB. a vendor can help in flushing out minor errors from your draft which are invisible on paper.

Rectifying these problems facilitates easy procurement of the right components for the manufacturing process.

Placing Components Along the Edges

This is a mistake that can affect the functionality of your red PCB. For instance, it can lead to cracking of the capacitors which render your PCB non-functioning.

A qualified vendor rectifies this and if possible, designs routes along the edges of your red PCB instead of having components.

Board Overstuffing

Overstuffing your board leads to miscommunication of the components and overheating. This causes the PCB to malfunction or not to function completely.

A given PCB should only contain the necessary components needed for its proper functioning. A reliable vendor can assist you in designing your board accordingly.

Overcomplicating Things

Your red PCB should be as simple as possible. That means you should have only the necessary components and of the right size as per the size of your red PCB.

Your vendor should advise you on an appropriate component to use and where to place them on your board.

Unsuitable PCB Finish

There are different PCB surface finishes that you can use. these include electroless nickel immersion gold (ENIG) and hot air soldering leveling (HASL).

HASL is relatively not common since it usually wipes the Sauter present on the board. The advantage of ENG is its suitability and ease of application.

You have to select a surface finish that does not affect the board’s components.

Which is the IPC-6011 Acceptance Standards for Red PCB?

The acceptance standards for red PCB are categorized into:

Class 1

This class defines general electronic products that are of common use. These products are not durable. This acceptance standard allows for product defect as long as it is functioning properly.

Class 2

Class 2 acceptance standard allows for a certain level of defect. It is a common standard for robust computers and communication equipment.

The performance level of these products is relatively higher compared to the others.

Class 3

This is the highest standard for the performance of your red PCB. Products in this standard require uninterrupted service and have a high operational demand.

What is your lead Time for Red PCB Order?

The lead time for red PCB order is between 7 and 20 days. If all the parts of your PCB belong to the same seed’s OPL, then the production lead time is 7 days.

However, the lead time is 20 days if the parts of your PCB do not belong to the same seed’s OPL.

It is important that at the point of submitting your order, you do so with all the relevant details that can facilitate the production process.

At Venture Electronics, we give you the best red PCB for your unique application requirements.

We also support OEM businesses.

For all your red PCB requirements, you can contact Venture Electronics now.

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