Superior Quality Transformer PCB

Transformer PCB Services provide are the best in the industry. Our services are most reliable, cost-effective and flexible. We offer superior quality products at competitive prices. We have a team of experienced professionals who ensure that all orders are executed in a timely manner without compromising on quality. Our services include:

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Step-Up or Step-Down the Voltage with Transformer PCB

A transformer is a device that transfers electrical energy from one circuit to another by electromagnetic induction. It is most often used to change voltage, but it can also be used to change current and impedance. A transformer consists of two or more coils of wire wound around a magnetic core. The wires are electrically insulated from one another, and they are called secondary and primary windings.

When you are working on a project and you need to step up or down the voltage, you can use a transformer. You will need to know the input and output voltages for each of your components. If you have an input voltage of 12 volts and an output voltage of 24 volts, then you will need a step up transformer. If you have an input voltage of 12 volts and an output voltage of 3 volts, then you will need a step down transformer.

If you need help with your transformer PCB, then PCBTok can provide you with a quote or consultation service to assist in your manufacturing process.

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Transformer PCB by Type

Step-Down Transformer

A step-down transformer is a type of stepping down the voltage and increasing the current. It converts high voltage and low current from the primary side of the transformer to low voltage of the circuit boards.

Step-Up Transformer

Step-up the voltage from the primary coil to the secondary coil while managing the same power at the rated frequency in both coils. This means that the resulting voltage is higher than the input voltage.

Isolation Transformer

Can reduce electrical transients and harmonics, as well as provide galvanic isolation. To transfer alternating current power from a source of AC power while isolating the powered device from the power source.

Iron Core Transformer

An Iron Core Transformer is a type of electrical transformer which uses an iron core. It increases the strength of the magnetic field. The magnetic field passes through (or cuts) the secondary coil.

Ferrite Core Transformer

Ferrite core transformers are an important factor in the development of electrical power systems. They are made up of a non-conductive, ferromagnetic compound that has its winding made from ferrite cores.

Toroidal Core Transformer

Offers high magnetic efficiency and comes in small size. Designed with a uniform cross-section area and coated with a material that provides high breakdown voltage, easy to use even in extreme environments.

Transformer PCB By Voltage (5)

  • 6V Transformer

    Our 6V Transformer circuit boards are perfect for circuits that run off of 6 volts. This is the circuit board of choice for many small, simple projects.

  • 9V Transformer

    Made from high quality materials and built to last, this 9V Transformer circuit board is designed to allow you to easily add a power supply option to your project.

  • 12V Transformer

    12V transformer printed circuit boards are made with high quality material and include an internal power supply and average lifespan of 20 years and more.

  • 15V Transformer

    The 15V Transformer circuit boards are regulated, which means that the output voltage of the voltage regulator will be almost the same as input voltage.

  • 20V Transformer

    Designed with the highest quality and reliability in mind. Used to create a space for high-power components and available in different configurations.

Transformer PCB by Function (5)

  • Power Transformer

    Low voltage transformer and associated circuitry to provide the input power required by your product. Provides electrical isolation so that the circuitry inside your product is isolated from the mains power supply.

  • Measurement Transformer

    Allow easy voltage and current measurement. They are used in many different applications including power supply regulation, motor control, crystal oscillators, instrumentation and communications equipment.

  • Distribution transformer circuit boards are commonly used to isolate electrical components from one another and protect them from hazards. They can be used as an output source for power circuits.

  • Pulse Transformer

    Lets you drive servos, DC motors, and other actuators with a pulse signal instead of a continuous one. It can be used for driving stepper motors for precision motion control as well as many other applications!

  • Audio Output Transformer

    Audio Output Transformer circuit boards for audio equipment, where the output amplifier has an unfiltered power supply. The output transformer is typically a high impedance, medium to low voltage.

Convert Alternating Current from One to Another

When we are talking about the conversion of AC to AC, the most commonly used devices are transformers.

A transformer is an electrical device that transfers electrical energy to another circuit using electromagnetic induction. It is usually made with a core made of a magnetic material, such as iron, with a winding of insulated wire around it. The primary and secondary windings are used to transfer power between two circuits that are electrically isolated from each other.

A transformer consists of two or more coils of wire wound around a core. One coil is referred to as primary coil while other coils are called secondary coils. The primary coil is connected to an alternating current source while secondary coil carries direct current (DC). The process by which AC voltage from one circuit is converted into DC voltage for another circuit is known as rectification.

Convert Alternating Current from One to Another
Certified and Quality Checked Transformer PCBs

Certified and Quality Checked Transformer PCBs

Transformer PCBs manufactured by PCBTok are certified according to the IPC-6012 standard, which is a quality management system for electronics manufacturing companies. This ensures that our customers can rest assured that the products they purchase from us will meet their high standards.

We also meet the requirements of ISO 9001:2008, which means we can provide you with a complete quality control system that meets your exact needs. Our team of experienced engineers will help you discover what works best for your company’s unique needs, as well as how to implement it into your production process.

Because our Transformer PCBs are certified and quality checked, you can be assured that our products will exceed your expectations.

Lighter and Compact Transformer PCB

PCBTok’s transformer boards are designed to be lighter, more compact, and more efficient than other types of transformer. This makes them an ideal choice for your product’s needs—whether it is a medical device, a consumer electronics product, or something else entirely.

Our transformer PCBs are also made with higher quality material than others on the market because we believe in providing our customers with the best possible products. We also offer custom design services if you need something unique.

Lighter and Compact Transformer PCB

Insulating Materials of PCBTok’s Transformer PCB

Insulating Materials of PCBTok’s Transformer PCB
Insulating Materials of PCBTok’s Transformer PCB (1)

PCBTok’s Transformer PCBs are made from Insulating Materials for better efficiency.

It is a high quality, thick and rigid insulation material that has been developed to help transformers and reactors operate at higher efficiency levels. This material can be used in the construction of transformers, reactors and other heat exchangers.

It is an extruded PVC product with an outer layer of aluminum foil. This insulation system improves electrical performance of transformers by lowering the dielectric constant and increasing the leakage current level. The aluminum foil layer also acts as a protective barrier against moisture ingress.

Transformer PCB Fabrication

Moisture Resistant Components

Moisture resistant components are designed to resist exposure to weather and humidity. They don’t corrode or rust, so your transformer PCBs can withstand the elements.

PCBTok’s Transformer PCBs are made from moisture resistant components. The components used in these PCBs have been tested according to the industry standards set by IPC-610D, which is a standard for measuring moisture resistance.

This means that they don’t rust, which is a problem that can cause short circuits and reduce the lifespan of your transformer. The use of moisture resistant PCBs also makes it much easier to install and maintain transformers, since they’re less likely to corrode over time.

Polarity Tested and Ratio Tested Transformer PCB (1)

The primary benefit of polarity testing and ratio testing is its increased safety. This is due to its use of low-voltage energy storage and high voltage conversion. The purpose of this system is to reduce the risk of injury from electrical shock by eliminating the need for live conductors within the machine or device.

In addition, this transformer PCB offers improved efficiency over previous circuit boards. This results from its ability to store more energy than traditional transformers while using less space and weight.

The result is lower operating costs over time as well as reduced maintenance costs associated with replacing old equipment with newer versions that offer better performance levels.

OEM & ODM Transformer PCB Applications

Air Conditioners

It enables motorized air conditioning. It is an energy saving device utilizing the greatest amount of energy in a narrow band frequency range.


This PCB is especially designed for Coolant. The component of cooling fan, water pump and heater can be mounted onto the PCB with ease.

DC Blocker

Use this PCB, along with a few basic components and a power supply, to create your own custom DC Blocker for blocking DC current.


The transformer required for Ammeter. It is a small, flat package that has a winding of approximately 10 turns on it and is mounted in an insulating block.

Power Supply

It reduce the output voltage and create a perfectly smooth waveform. The output of this circuit is often used as the input for various electronic devices

PCBTok Provides Top-Grade Transformer PCB and Service
PCBTok Provides Top-Grade Transformer PCB and Service

Professionally tested Transformer PCBs for the best performance. PCBTok provides you with high quality PCBs at a competitive price.

Inquire about Transformer boards from PCBTok today!

Transformer PCB Production Details As Following Up

NO Item Technical Specification
Standard Advanced
1 Layer Count 1-20 layers 22-40 layer
2 Base Material KB、Shengyi、ShengyiSF305、FR408、FR408HR、IS410、FR406、GETEK、370HR、IT180A、Rogers4350、Rogers400、PTFE Laminates(Rogers series、Taconic series、Arlon series、Nelco series)、Rogers/Taconic/Arlon/Nelco laminate with FR-4 material(including partial Ro4350B hybrid laminating with FR-4)
3 PCB Type Rigid PCB/FPC/Flex-Rigid Backplane、HDI、High multi-layer blind&buried PCB、Embedded Capacitance、Embedded resistance board 、Heavy copper power PCB、Backdrill.
4 Lamination type Blind&buried via type Mechanical blind&burried vias with less than 3 times laminating Mechanical blind&burried vias with less than 2 times laminating
HDI PCB 1+n+1,1+1+n+1+1,2+n+2,3+n+3(n buried vias≤0.3mm),Laser blind via can be filling plating 1+n+1,1+1+n+1+1,2+n+2,3+n+3(n buried vias≤0.3mm),Laser blind via can be filling plating
5 Finished Board Thickness 0.2-3.2mm 3.4-7mm
6 Minimum Core Thickness 0.15mm(6mil) 0.1mm(4mil)
7 Copper Thickness Min. 1/2 OZ, Max. 4 OZ Min. 1/3 OZ, Max. 10 OZ
8 PTH Wall 20um(0.8mil) 25um(1mil)
9 Maximum Board Size 500*600mm(19”*23”) 1100*500mm(43”*19”)
10 Hole Min laser drilling size 4mil 4mil
Max laser drilling size 6mil 6mil
Max aspect ratio for Hole plate 10:1(hole diameter>8mil) 20:1
Max aspect ratio for laser via filling plating 0.9:1(Depth included copper thickness) 1:1(Depth included copper thickness)
Max aspect ratio for mechanical depth-
control drilling board(Blind hole drilling depth/blind hole size)
0.8:1(drilling tool size≥10mil) 1.3:1(drilling tool size≤8mil),1.15:1(drilling tool size≥10mil)
Min. depth of Mechanical depth-control(back drill) 8mil 8mil
Min gap between hole wall and
conductor (None blind and buried via PCB)
7mil(≤8L),9mil(10-14L),10mil(>14L) 5.5mil(≤8L),6.5mil(10-14L),7mil(>14L)
Min gap between hole wall conductor (Blind and buried via PCB) 8mil(1 times laminating),10mil(2 times laminating), 12mil(3 times laminating) 7mil(1 time laminating), 8mil(2 times laminating), 9mil(3 times laminating)
Min gab between hole wall conductor(Laser blind hole buried via PCB) 7mil(1+N+1);8mil(1+1+N+1+1 or 2+N+2) 7mil(1+N+1);8mil(1+1+N+1+1 or 2+N+2)
Min space between laser holes and conductor 6mil 5mil
Min space between hole walls in different net 10mil 10mil
Min space between hole walls in the same net 6mil(thru-hole& laser hole PCB),10mil(Mechanical blind&buried PCB) 6mil(thru-hole& laser hole PCB),10mil(Mechanical blind&buried PCB)
Min space bwteen NPTH hole walls 8mil 8mil
Hole location tolerance ±2mil ±2mil
NPTH tolerance ±2mil ±2mil
Pressfit holes tolerance ±2mil ±2mil
Countersink depth tolerance ±6mil ±6mil
Countersink hole size tolerance ±6mil ±6mil
11 Pad(ring) Min Pad size for laser drillings 10mil(for 4mil laser via),11mil(for 5mil laser via) 10mil(for 4mil laser via),11mil(for 5mil laser via)
Min Pad size for mechanical drillings 16mil(8mil drillings) 16mil(8mil drillings)
Min BGA pad size HASL:10mil, LF HASL:12mil, other surface technics are 10mil(7mil is ok for flash gold) HASL:10mil, LF HASL:12mil, other surface technics are 7mi
Pad size tolerance(BGA) ±1.5mil(pad size≤10mil);±15%(pad size>10mil) ±1.2mil(pad size≤12mil);±10%(pad size≥12mil)
12 Width/Space Internal Layer 1/2OZ:3/3mil 1/2OZ:3/3mil
1OZ: 3/4mil 1OZ: 3/4mil
2OZ: 4/5.5mil 2OZ: 4/5mil
3OZ: 5/8mil 3OZ: 5/8mil
4OZ: 6/11mil 4OZ: 6/11mil
5OZ: 7/14mil 5OZ: 7/13.5mil
6OZ: 8/16mil 6OZ: 8/15mil
7OZ: 9/19mil 7OZ: 9/18mil
8OZ: 10/22mil 8OZ: 10/21mil
9OZ: 11/25mil 9OZ: 11/24mil
10OZ: 12/28mil 10OZ: 12/27mil
External Layer 1/3OZ:3.5/4mil 1/3OZ:3/3mil
1/2OZ:3.9/4.5mil 1/2OZ:3.5/3.5mil
1OZ: 4.8/5mil 1OZ: 4.5/5mil
1.43OZ(positive):4.5/7 1.43OZ(positive):4.5/6
1.43OZ(negative ):5/8 1.43OZ(negative ):5/7
2OZ: 6/8mil 2OZ: 6/7mil
3OZ: 6/12mil 3OZ: 6/10mil
4OZ: 7.5/15mil 4OZ: 7.5/13mil
5OZ: 9/18mil 5OZ: 9/16mil
6OZ: 10/21mil 6OZ: 10/19mil
7OZ: 11/25mil 7OZ: 11/22mil
8OZ: 12/29mil 8OZ: 12/26mil
9OZ: 13/33mil 9OZ: 13/30mil
10OZ: 14/38mil 10OZ: 14/35mil
13 Dimension Tolerance Hole Position 0.08 ( 3 mils)
Conductor Width(W) 20% Deviation of Master
1mil Deviation of Master
Outline Dimension 0.15 mm ( 6 mils) 0.10 mm ( 4 mils)
Conductors & Outline
( C – O )
0.15 mm ( 6 mils) 0.13 mm ( 5 mils)
Warp and Twist 0.75% 0.50%
14 Solder Mask Max drilling tool size for via filled with Soldermask (single side) 35.4mil 35.4mil
Soldermask color Green, Black, Blue, Red, White, Yellow,Purple matte/glossy
Silkscreen color White, Black,Blue,Yellow
Max hole size for via filled with Blue glue aluminium 197mil 197mil
Finish hole size for via filled with resin  4-25.4mil  4-25.4mil
Max aspect ratio for via filled with resin board 8:1 12:1
Min width of soldermask bridge Base copper≤0.5 oz、Immersion Tin: 7.5mil(Black), 5.5mil(Other color) , 8mil( on copper area)
Base copper≤0.5 oz、Finish treatment not Immersion Tin : 5.5 mil(Black,extremity 5mil), 4mil(Other
color,extremity 3.5mil) , 8mil( on copper area
Base coppe 1 oz: 4mil(Green), 5mil(Other color) , 5.5mil(Black,extremity 5mil),8mil( on copper area)
Base copper 1.43 oz: 4mil(Green), 5.5mil(Other color) , 6mil(Black), 8mil( on copper area)
Base copper 2 oz-4 oz: 6mil, 8mil( on copper area)
15 Surface Treatment Lead free Flash gold(electroplated gold)、ENIG、Hard gold、Flash gold、HASL Lead free、OSP、ENEPIG、Soft gold、Immersion silver、Immersion Tin、ENIG+OSP,ENIG+Gold finger,Flash gold(electroplated gold)+Gold finger,Immersion silver+Gold finger,Immersion Tin+Gold finge
Leaded Leaded HASL
Aspect ratio 10:1(HASL Lead free、HASL Lead、ENIG、Immersion Tin、Immersion silver、ENEPIG);8:1(OSP)
Max finished size HASL Lead 22″*39″;HASL Lead free 22″*24″;Flash gold 24″*24″;Hard gold 24″*28″;ENIG 21″*27″;Flash gold(electroplated gold) 21″*48″;Immersion Tin 16″*21″;Immersion silver 16″*18″;OSP 24″*40″;
Min finished size HASL Lead 5″*6″;HASL Lead free 10″*10″;Flash gold 12″*16″;Hard gold 3″*3″;Flash gold(electroplated gold) 8″*10″;Immersion Tin 2″*4″;Immersion silver 2″*4″;OSP 2″*2″;
PCB thickness HASL Lead 0.6-4.0mm;HASL Lead free 0.6-4.0mm;Flash gold 1.0-3.2mm;Hard gold 0.1-5.0mm;ENIG 0.2-7.0mm;Flash gold(electroplated gold) 0.15-5.0mm;Immersion Tin 0.4-5.0mm;Immersion silver 0.4-5.0mm;OSP 0.2-6.0mm
Max high to gold finger 1.5inch
Min space between gold fingers 6mil
Min block space to gold fingers 7.5mil
16 V-Cutting Panel Size 500mm X 622 mm  ( max. ) 500mm X 800 mm ( max. )
Board Thickness 0.50 mm (20mil) min. 0.30 mm (12mil) min.
Remain Thickness 1/3 board thickness 0.40 +/-0.10mm( 16+/-4 mil )
Tolerance ±0.13 mm(5mil) ±0.1 mm(4mil)
Groove Width 0.50 mm (20mil) max. 0.38 mm (15mil) max.
Groove to Groove 20 mm (787mil) min. 10 mm (394mil) min.
Groove to Trace 0.45 mm(18mil) min. 0.38 mm(15mil) min.
17 Slot Slot size tol.L≥2W PTH Slot: L:+/-0.13(5mil) W:+/-0.08(3mil) PTH Slot: L:+/-0.10(4mil) W:+/-0.05(2mil)
NPTH slot(mm) L+/-0.10 (4mil) W:+/-0.05(2mil) NPTH slot(mm) L:+/-0.08 (3mil) W:+/-0.05(2mil)
18 Min Spacing from hole edge to hole edge 0.30-1.60 (Hole Diameter) 0.15mm(6mil) 0.10mm(4mil)
1.61-6.50 (Hole Diameter) 0.15mm(6mil) 0.13mm(5mil)
19 Min spacing between hole edge to circuitry pattern PTH hole: 0.20mm(8mil) PTH hole: 0.13mm(5mil)
NPTH hole: 0.18mm(7mil) NPTH hole: 0.10mm(4mil)
20 Image transfer Registration tol Circuit pattern vs.index hole 0.10(4mil) 0.08(3mil)
Circuit pattern vs.2nd drill hole 0.15(6mil) 0.10(4mil)
21 Registration tolerance of front/back image 0.075mm(3mil) 0.05mm(2mil)
22 Multilayers Layer-layer misregistration 4layers: 0.15mm(6mil)max. 4layers: 0.10mm(4mil) max.
6layers: 0.20mm(8mil)max. 6layers: 0.13mm(5mil) max.
8layers: 0.25mm(10mil)max. 8layers: 0.15mm(6mil) max.
Min. Spacing from Hole Edge to Innerlayer Pattern 0.225mm(9mil) 0.15mm(6mil)
Min.Spacing from Outline to Innerlayer Pattern 0.38mm(15mil) 0.225mm(9mil)
Min. board thickness 4layers:0.30mm(12mil) 4layers:0.20mm(8mil)
6layers:0.60mm(24mil) 6layers:0.50mm(20mil)
8layers:1.0mm(40mil) 8layers:0.75mm(30mil)
Board thickness tolerance 4layers:+/-0.13mm(5mil) 4layers:+/-0.10mm(4mil)
6layers:+/-0.15mm(6mil) 6layers:+/-0.13mm(5mil)
8-12 layers:+/-0.20mm (8mil) 8-12 layers:+/-0.15mm (6mil)
23 Insulation Resistance 10KΩ~20MΩ(typical:5MΩ)
24 Conductivity <50Ω(typical:25Ω)
25 Test voltage 250V
26 Impedance control ±5ohm(<50ohm), ±10%(≥50ohm)

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It normally takes 3-7 business days to deliver a package to most of the addresses in the world.


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TNT has 56,000 employees in 61 countries.
It takes 4-9 business days to deliver the packages to the hands
of our customers.


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It takes 4-7 business days to deliver the packages to the hands
of our customers.


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If your order is of large volume with PCBTok, you can also choose
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Note: if you need others, please contact your sales representative for shipping solutions.

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