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Our Mission Our mission is to support the OEM, ODM, & CM market through well established, ,skilled, and diverse factory partnerships in Asia. We deliver value-added services that enable companies to manage, improve, and add profitability to their business.
Cable Assemblies Our custom cable assembly capabilities furnish the OEM and ODM market with superior product at a significantly reduced cost. Our cable manufacturing services range from design, prototypes, to full production.
Custom Connectors Supply Concepts has a state of the art mold/tooling fabrication shop which allows us to quickly go from concept to mass production in weeks, not months. Our in house mold facility provides flexibility to react quickly to changes in customer requirements.
CNC Machining Unsurpassed accuracy is the end result with our CNC capabilities, which include the full array of CNC fabricating techniques. If the project demands the upmost of accuracy our CNC solutions is the answer.
Die Casting and Extrusion Supply Concepts Die Casting and Extrusion process offers the widest range of shapes than any other metal manufacturing technique. From die design to finished product, with the end result always being the same, and economical, quality product.
Custom Metal Work Whether it be a simple stand alone single part, or a totally customized multi faceted assembly, Supply Concepts has the expertise and quality facilities to get your project done right the first time. Our partnered factories capabilities range from a simple stamping to the most intricate multi process fabrication.
Injection Moulding Utilizing the latest CAD systems, coupled with our experience, Supply Concepts can undertake the most difficult Injection Moulding Projects. Whether it be the selection of raw material or color, we have the expertise and experience to create the quality finished product are customers expect.
Transformers We make sure all our transformers comply with the safety standards denoted by our customer’s, UL, CSA, VDE. IEC, and AS/NZS and others. Making sure all of our electrical products meet the highest safety standards is paramount at Supply Concepts.  
Heatsink Supply Concepts offers many different standard type heat sinks. Many of these heat sinks can be slightly modified to meet most of our customer’s need. Having a large inventory of these basic designs in stock offer you, our customer, a very cost effective, quick turnaround solution to your heat sink needs. If need be, we can always design and deliver a totally customs solution.  
LCD Display and Modules Supply Concepts offers a wide range of custom and standard LCD displays and modules. Our custom capabilities range from the simplest of monochrome displays to the highest resolution available in today’s technology.

Transformers made to specification are  common item sourced via Supply Concepts from China. We have a long standing relationship with number of Chinese transformer manufacturers specializing in:

- IE Type transformers
- Toroidal (toroid) transformers
- High Frequency transformers used in Switch Mode Power Supplies
- Chokes and inductors

When you need a Transformer manufacturer that offers 'value-add' service, which includes manufacturing wiring harness, assembly of made transformers on to PCB or in to the enclosure and doing some base wiring, contact us.We have close relationships with power transformer manufacturers, current transformers manufacturers, electrical transformers manufacturers and several toroidal transformer manufacturer facilities.
Below is a short summary of different types of transformers and there’s benefits.

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EI transformer

EE and EI Transformers:

- A wide range of single or multiple voltages, currents or power
- Low idle losses
- Excellent heat dissipation

ER, ETD and PQ Transformers:

- Provide an optimized ratio of volume to winding area and surface area
- Good heat dissipation.
- High power outputEFD transformer
- Low idle losses

EFD, EP and EPC type of Transformers offer:

- Wide range of power rating.
- Excellent magnetic shielding
- Good heat dissipation.
- Low idle losses
POT transformer

POT and RM types of Transformers:

- Good magnetic shielding
- Small distributed capacitance
- Can be supplied gapped with tuner
- Well-suited for high Q inductors & tuned transformers. 

Toroid / Toroidal Transformers:toroidal transformer

- Can be made of any size
- Wide range of power output
- Low exterior magnetic field
-Wide range of input/output voltages available
- Low idle losses

Wire type Transformer:

- Wide range of power output
- Good heat dissipation
- Low idle losses

High Standards Guaranteed

Supply Concepts International has a longstanding relationship with testing authorities in both Australia and China. This ensures that all products supplied by manufacturers comply with current electrical safety standards (AS/NZS) for a variety of applications.  On behalf of its customers, PA International has also worked with various testing authorities to assist customers in obtaining electrical approvals of their products.

We’ll manage the relationship with each power transformer manufacturer, current transformer manufacturer and the electrical transformer manufacturers performing transformer manufacturing in China for you.


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manufactured in china transformer toroidal transformer choke transformer transformars and inductors china

Points to consider when ordering Transformers


Custom transformers can be designed to the applicable sections of other standards, such as: UL, IEC, VDE, CSA, AS/NZS and others. 


Unless specified otherwise, transformers are made to meet Class B (130°C). However, we use four UL approved insulation classes, which may be specified as required, up to class H (180C). 

Temperature Rise

Transformer temperature rise may be specified as required in given operating ambient. The basic design guideline is 60°C. With a Class B (130°C) insulation system, this would allow operation in a maximum 70°C ambient. 


Most common input voltage for transformers is 220VAC. We can design and manufacture transformers with other voltage inputs including multy-voltage tapings.

Line Frequency

Standard transformers are designed to operate at 50 or 60 Hz. Grain oriented steel cores can be used at frequencies up to 2 kHz. For higher frequencies we use such materials as ferrite, powdered metal and other composites. 


Power requirements up to 25 kVA per phase (75 kVA for three phase transformers). 


The output loading of the transformer may be specified in either of two ways: 
-AC (RMS) voltage and current (IAC) or power (VA) and duty cycle for each secondary output. 
-DC load parameters. We can engineer the optimum transformer from your specific DC load data. This data should include: DC voltage, current, rectifier type (full wave, full wave bridge, etc.) and specification, capacitor type and value, regulator type and specifications, and special load characteristics, including duty cycle. Please supply a simple schematic, if possible. With this information, we will determine the optimum secondary AC specifications for each output. 


In addition to the standard potted center toroidal transformer and mounting disk with washers, we can supply custom toroids with threaded inserts, bushings, or studs pressed into a potted center; special molded bases; complete molded enclosures; printed circuit mount cases or custom sheet metal brackets and enclosures. 


Leads may be specified as solid (stripped and/or tinned) or stranded (with special stranding ratios, stripped and/or terminated). Insulation layers and type may be specified (Teflon, PVC, single, double, etc.). Lengths of transformer leads are required. 

Thermal Protection

Customer specified temperature and type: self resetting switch or fuse. We use specially packaged (for high mechanical stress) internationally approved devices in our transformers.

Electrostatic Screen

Customer specified. To reduce capacitive coupling, and/or create a physical barrier insert (known as safety screen), between primary and secondary or between specified secondary’s windings of transformer. Copper foil laminated between insulation provides 100% coverage. 

Magnetic Shield

Toroidal transformers radiate about 1/10 the magnetic field of standard EI transformers, but to further attenuate stray magnetic fields in very sensitive applications, such as in close proximity to a CRT, an additional magnetic shield may be called for. Magnetic shields consist of multiple layers of grain oriented silicon steel, or a high nickel content alloy, such as MU-Metal, Magnifier 79, etc.., laminated between insulation. Wrapped around circumference of transformer. Disks are also available for use within potted assemblies. 


Height and diameter of the electrical transformers made to suit, as long as the core cross section is held constant.