Custom Transformer & Magnetic Components FAQ
Concise technical and sourcing answers for customized transformers, inductors, chokes, reactors and related magnetic components used in industrial OEM equipment.
Transformer Design
What information is normally required for a custom transformer?
Typical information includes input and output voltage, power or current, operating frequency, dimensions, insulation requirements, winding configuration, mounting method and application conditions. If a complete specification is unavailable, KATOY can also review drawings, existing product information or reference samples.
What affects transformer temperature rise?
Temperature rise is influenced by copper loss, core loss, current density, operating frequency, ventilation, ambient temperature, duty cycle and mechanical construction. A custom design should be evaluated under the actual electrical and thermal conditions of the equipment.
Can KATOY develop transformers from drawings or samples?
Yes. Projects can be evaluated from customer specifications, drawings, existing transformer information or reference samples. Additional circuit and operating information may be required before prototype development.
Can KATOY support 50 Hz and 60 Hz transformer projects?
Yes. KATOY can evaluate mains-frequency transformer projects for 50 Hz and 60 Hz systems. Core, winding and thermal design must correspond to the specified frequency and electrical operating conditions.
Inductors, Chokes & Reactors
What is the difference between a common-mode choke and a differential-mode inductor?
A common-mode choke is designed primarily to impede common-mode noise while carrying the intended differential current. A differential-mode inductor acts on current in the differential path and may be used for filtering or energy-storage functions. Core material, winding arrangement and current conditions differ by application.
What information is needed for a custom inductor or choke?
Useful information includes inductance or impedance target, rated and peak current, operating frequency, DCR target, core or size constraints, winding arrangement, mounting and thermal conditions. Waveform information is also useful where saturation or core loss is important.
What information is required for a custom reactor?
Typical inputs include required inductance, rated and peak current, operating frequency, waveform, circuit voltage, insulation requirements, allowable temperature rise, dimensions, mounting and terminal requirements.
Are all reactors line reactors, DC reactors or output reactors?
No. Those terms describe specific circuit applications. Reactor type should be identified according to its actual electrical function and operating conditions rather than inferred from appearance alone.
Customization & Manufacturing
Does KATOY only manufacture the product families shown on the website?
No. The website presents major product families and representative constructions. KATOY can evaluate additional custom transformer and magnetic-component structures according to customer electrical, mechanical and application requirements.
Can KATOY help optimize magnetic components for a power module?
Yes, within the magnetic-component scope. KATOY can support core and winding design, insulation, thermal considerations and mechanical integration for transformers, inductors and related magnetics used within power modules and power-electronic equipment.
Can KATOY support prototypes before recurring production?
Yes. Custom projects can proceed from technical review and prototype development through sample validation and recurring manufacturing. The exact development process depends on product complexity and the information available.
Is there a fixed MOQ for every custom product?
No. MOQ depends on the product structure, materials, manufacturing process and project stage. Prototype quantities and recurring production requirements are evaluated individually.
Quality & Compliance
What quality system does KATOY operate?
KATOY operates an ISO 9001:2015 quality management system. Inspection and testing are performed according to approved product specifications and project requirements.
What electrical tests can be performed?
Applicable tests depend on the product design. They may include winding resistance, ratio, inductance, electrical parameter verification, insulation-related tests and other project-specific checks defined during technical review.
Are all KATOY products UL or CE certified?
Certification and compliance requirements are product- and project-specific. They should be confirmed during technical review rather than assumed to apply universally to every customized product.
How should a customer start a custom project?
Send the available electrical specifications, mechanical dimensions, drawings, application conditions or reference sample information. KATOY can then review the magnetic-component requirements and identify any additional data needed for development.
Still Have a Technical Question?
Send your specifications, drawing or application information and KATOY can review the magnetic-component requirements for your project.