Transformer Product List and Ranking from 68 Manufacturers, Suppliers and Companies | IPROS

Last Updated: Aggregation Period:Jan 28, 2026~Feb 24, 2026
This ranking is based on the number of page views on our site.

Transformer Manufacturer, Suppliers and Company Rankings

Last Updated: Aggregation Period:Jan 28, 2026~Feb 24, 2026
This ranking is based on the number of page views on our site.

  1. ウエルネス Osaka//others
  2. 電研精機研究所 Tokyo//others
  3. 日幸電機 仙台営業所 Miyagi//Electrical equipment construction business
  4. 4 鎌田信号機 Osaka//others
  5. 5 鶴田電機 Ibaraki//Electrical equipment construction business

Transformer Product ranking

Last Updated: Aggregation Period:Jan 28, 2026~Feb 24, 2026
This ranking is based on the number of page views on our site.

  1. リゾートホテルの料理、設備での導入事例│活水器『νG7F 6連』 ウエルネス
  2. Active Water Device "νG7 (New G Seven)" ウエルネス
  3. Non-combustible interior finishing material with a stone texture | stonetex トーザイクリエイト
  4. 4 Noise Cut Transformer NCT-I3 電研精機研究所
  5. 5 Smart Coil Corporation - Transformers, Coils, Reactors 光アルファクス

Transformer Product List

151~180 item / All 298 items

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Noise Trouble Consultation Room

With over 50 years of experience, we offer consulting services for noise control suitable for your company's electromagnetic environment.

Our "Noise Trouble Consultation Room" was established in 1983 as a specialized technical department for noise trouble measures. Since then, we have received consultations on various noise disturbances amounting to 3,000 cases annually and have been working on their resolution. To date, we have accumulated an extensive track record and rich experience, receiving significant recognition from various sectors.

  • Lightning protection
  • Transformer

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Noise Cut Transformer - Comprehensive Catalog for Barrier Wave Isolation Transformers

We will reliably protect information processing devices, equipment, systems, etc., from high-frequency noise interference.

The noise cut transformer is a barrier wave blocking transformer that serves as an isolation-type noise prevention device. It reliably protects information processing devices, equipment, and systems from high-frequency noise interference even in the worst electromagnetic environments. The "Noise Cut Transformer Barrier Wave Blocking Transformer Comprehensive Catalog" features a variety of models, including the standard model "NCT-F1," which is easy to use with both 100V and 200V input/output, the "NCT-F3 and F4" models that consider aesthetic design, and the mid-capacity models "NCT-F5, F6, and F6-CE" that pursue cost performance. 【Featured Products】 ○ NCT-F1 ○ NCT-F3 and F4 ○ NCT-F5, F6, and F6-CE ○ NCT-J ○ NCT-I1 and I2, among others For more details, please contact us.

  • Substation equipment
  • Transformer

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Noise Cut Transformer NCT-J

Decisive effect against noise leakage from inverters! It can also be widely used for other three-phase applications.

This is a "Noise Cut Transformer" developed to prevent malfunctions and communication disruptions caused by noise associated with the rapidly increasing use of "general-purpose inverters." Of course, it can also be used for other applications. The noise generated by conventional inverters has been difficult to sufficiently mitigate with LC filters and similar devices. This is due to the presence of a significant amount of noise in the frequency range below 100 kHz, where the effectiveness of the filters diminishes, as well as issues such as leakage current when filters are used, and the influence of grounding conditions and the impedance of power and load devices. The NCT-J is a trump card that can solve these problems all at once.

  • Substation equipment
  • Transformer

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Noise Cut Transformer NCT-I3

It is a low-cost model equipped with basic performance. It is very convenient when connecting loads such as measuring instruments and audio equipment via a plug.

This is a small, low-cost "Noise Cut Transformer" developed with a focus on general-purpose electronic devices for mass production and portable electronic devices. By utilizing a newly developed noise prevention mechanism (which has been patented), it effectively blocks normal mode noise across a wide frequency range that cannot be prevented by standard isolation transformers or shielded transformers, thereby significantly improving the noise resistance of the connected devices. Additionally, its wideband common mode noise blocking capability protects the load devices from surges caused by induced lightning. In addition to standard voltage models, we can also produce units with custom voltages upon request, allowing for replacement of the power transformer in the connected devices. Furthermore, it can eliminate the need for other noise prevention components such as power filters.

  • Substation equipment
  • Transformer

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Noise Cut Transformer NCT-G

We have received high praise from cutting-edge research institutions, starting with the field of nuclear physics.

The coil's positioning is structured in an eccentric axis and eccentric core format, making it particularly effective in high-frequency areas and suitable for achieving high prevention effects. Compared to the NCT-F series, a higher attenuation rate can be achieved. It is designed faithfully to the principles of noise prevention, featuring a triple shielding body and a robust, low-impedance outer casing, constructed with shapes and materials that shield all conductive parts, including terminals and lead wires.

  • Substation equipment
  • Transformer

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Noise Cut Transformer NCT-Z

The core, coil, shield, case, and even the lead wires have all been manufactured in strict adherence to the theory.

This product has been developed through efforts since 1960, revealing the theoretically most superior design and obtaining patents for its structure and manufacturing methods. It has been made commercially available by improving the manufacturing methods and materials. The core shape and coil arrangement are of an off-axis eccentric twist design, exhibiting outstanding performance from several kHz to GHz. It is primarily used in laboratories, space development, laser-related equipment, precision experimental instruments, and for measuring minute signals.

  • Substation equipment
  • Transformer

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Noise trouble case / Flow meter values fluctuate during inverter pump operation.

Numerous examples! Introducing case studies of troubles caused by noise. Robots, logistics warehouses, plasma arc welding, servo-based weighing systems, etc...

【Noise Trouble Cases】 ■ The flow meter value fluctuates when the inverter pump is operating. ■ When the painting robot operates, the leakage breaker malfunctions. ■ In the logistics warehouse, the sensor module frequently fails. ■ The system experiences abnormal stops during plasma arc welding. ■ In the servo-based weighing system, the analog signal from the weighing controller fluctuates. ■ Frequent errors occur in the district heating and cooling system. ■ When the overseas compressor operates, a leakage current alarm is triggered. We also introduce many cases on our company website "Noise Maybe Blog," so please take a look. (You can view it from the link below.)

  • Substation equipment
  • Transformer

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Noise Cut Transformer NCT-R3-U2

This model has obtained certification for the insulation material UL standard "UL1446" and the structural UL standards "UL5085-1, UL5085-2."

This is a medium-capacity noise filter transformer that complies with UL standards. It is a model certified under the UL standard for insulation materials "UL1446" and the UL standards for construction "UL5085-1, UL5085-2." This product will be custom-made according to your specifications.

  • Substation equipment
  • Transformer

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[Case Study] An alarm for leakage current is triggered when the overseas compressor operates.

I want you to clarify the cause of the alarm sounding! Here is an introduction to noise countermeasure examples!

Since you have already confirmed that there are no abnormalities in the insulation of the equipment, we considered another possibility. Generally, high-frequency noise is generated from the compressor. Typically, some noise reduction product is installed on the compressor to prevent the high-frequency noise generated from affecting surrounding equipment. In principle, that noise reduction product should be able to sufficiently prevent the outflow of high-frequency noise. However, when several adverse conditions overlap, that noise reduction product can sometimes become a cause of dispersing high-frequency noise. Upon checking with the customer, it was confirmed that a noise reduction product is also installed on the compressor of the equipment, so we focused our investigation on the surrounding area. *For more details, please refer to the PDF document or feel free to contact us.*

  • Other Management Services
  • Transformer

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[Information] This will solve it! An Introduction to Noise Countermeasures for Inverters

A simple explanation of the generation principles and specific countermeasures regarding the theme of "inverter noise issues."

The Electric Research Institute has accumulated numerous case studies of noise trouble resolution over more than half a century since its establishment. In this document, we will introduce the basics of noise countermeasures for inverters based on the knowledge we have gained so far. With the theme of "Inverter Noise Issues," we will explain the generation principles and specific countermeasures in an easy-to-understand manner. We hope this will be helpful in addressing noise problems. 【Contents (excerpt)】 ■ Is that really harmonics? ■ I want to quickly try countermeasure products without all the roundabout explanations... ■ It's amazing how easily I can understand this, like magic! ■ Let's consider the balance between effectiveness and cost! *For more details, please refer to the PDF document or feel free to contact us.

  • Other Management Services
  • Transformer

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[Information] This will convince you! A Reintroduction to Noise Control

We introduce some creative perspectives and basic knowledge about noise!

Since the establishment of the Noise Trouble Consultation Room, Dengen Seiki Research Institute has been receiving various questions regarding noise on a daily basis. The noise troubles faced by our customers are diverse, and it is necessary to take appropriate measures that fit the specific situation, making it impossible to discuss methods in a general way. In this document, we introduce some creative perspectives and basic knowledge necessary for troubleshooting noise issues on-site. We hope you find it useful in addressing noise problems. [Contents] ■ Volume 1: Let's Identify the Affected Areas! - Introduction - Have you considered re-evaluating your current methods? - What are the reasons for "not understanding"? - Why not think from a broader perspective? *For more details, please refer to the PDF document or feel free to contact us.

  • Other Management Services
  • Transformer

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Booklet: Rediscovering the Charm of Noise-Cutting Transformers! Vol. 1

Extremely wideband among noise suppression elements! Lightning surge voltage can also be significantly attenuated!

This booklet introduces the wideband attenuation characteristics of the "Noise Cut Transformer," which can attenuate not only noise but also "lightning surges." The attenuation range for line noise that can be prevented covers normal mode (between lines) from 10kHz to 1GHz, and common mode from DC to 1GHz. In comparison, the attenuation range of typical LC filters for power supplies is from 100kHz to 30MHz, making the bandwidth of attenuation extremely wide among noise prevention devices. [Contents] ■ Normal Mode Attenuation Characteristics ■ Common Mode Attenuation Characteristics *For more details, please refer to the PDF document or feel free to contact us.

  • Other Management Services
  • Transformer

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Discovering the Charm of Noise-Cutting Transformers Again! Vol. 2

When used indoors where impulse coordination is maintained, it can withstand induced lightning!

This booklet introduces impulse voltages as defined by the overvoltage category/JIS. The standard impulse withstand voltage for the "Noise Cut Transformer" is 5kV (5000V). Up to an impulse voltage of 5kV (standard impulse voltage of 1.2/50μs as defined by JEC-0202), it can protect equipment from induced lightning without insulation breakdown. If you have concerns about impulse coordination or when using it in outdoor panels, please consider the NCT-K type or I4 type with an impulse withstand voltage of 10kV, or the NCT-K type and P type with an impulse withstand voltage of 30kV. [Contents] ■ Impulse voltages as defined by the overvoltage category/JIS *For more details, please refer to the PDF materials or feel free to contact us.

  • Other Management Services
  • Transformer

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[Case Study] Video Production Company M

Solving the blackout of large LED screens! To provide customers with beautiful visuals!

The video production for a concert with an audience of 10,000 will be handled by Company M. During the preliminary rehearsal, the LED screens displayed images without any issues, but during the actual concert, part of the large LED screen suddenly blacked out. Our company conducted an immunity test using a noise simulator. Based on the test results, we determined that the cause of the trouble was likely high-frequency noise. Based on the test results, we recommended that Company M install a "Noise Cut Transformer" on the power line of the video controller. Since then, Company M has ensured that this product is installed during concerts, and the phenomenon of the LED screen blacking out has not occurred again. 【Case Summary】 ■ Problem: Part of the LED screen blacked out ■ Product Introduced: Noise Cut Transformer ■ Effect: The phenomenon of the LED screen blacking out has not occurred again *For more details, please refer to the PDF document or feel free to contact us.

  • Safety and consumables
  • Transformer

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[Case Study] Automatic Welding Machine Manufacturer D Company

Why isn't it resolved even though we are using countermeasure products? Here are examples of noise countermeasures for automatic welding machines!

Company D, headquartered in Tokyo, had been addressing high-frequency noise generated within their factory by installing noise filters on the power lines of their equipment and attaching ferrite cores to the power cables. However, the issues were resolved in only one or two locations, while many areas remained problematic. In an environment where various frequencies of noise coexist, it is believed that solutions targeting only specific frequencies may not yield sufficient results. Therefore, we proposed the introduction of a "Noise Cut Transformer," which can reliably eliminate a wide range of frequencies. As a result, the issues were successfully resolved, and the automatic welding machine began to operate without any problems. [Case Summary] ■ Problem: Troubles persist despite using countermeasure products for noise control. ■ Introduced Product: Noise Cut Transformer ■ Effect: Issues were successfully resolved, and the automatic welding machine operates without problems. *For more details, please refer to the PDF document or feel free to contact us.

  • Safety and consumables
  • Transformer

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Noise Cut Transformer NCT-R3-U1 (UL Compliant Product)

A small capacity model that has obtained certification for the insulation material UL standard "UL1446" and the structural UL standards "UL5085-1, UL5085-2."

- It is UL certified (certified for UL1446, UL5085-1, and UL5085-2). - It has a very high versatility and can be used in a wide range of applications. - With its high noise suppression performance, it can withstand induced lightning surges up to 5000V. - It can reduce the need for other noise prevention components. - It has a structure that is not affected by radiated noise. - Both the primary and secondary sides are cable-connected.

  • Substation equipment
  • Transformer

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Noise filter transformer for embedded devices "NFT-L Series"

Immediate support for EMC measures! Prevents noise from being emitted, entering, and eliminates malfunctions.

The "NFT-L Series" is a noise filter transformer for device embedding with high versatility, capable of wiring to various structures of electronic devices due to its lead wire structure. It is divided into 9 types ranging from 2VA to 150VA, accommodating a variety of specifications as needed, with input voltages from 80V to 240V and output voltages from 5V to 240V. Additionally, the shield is consolidated to the transformer core, eliminating the need for special wiring (for types under 60VA). 【Features】 ■ Lead wire type ■ Can be wired to various structures of electronic devices ■ High versatility ■ No special wiring required as the shield is consolidated to the transformer core ■ Complies with various national standards such as Electrical Appliance and Material Safety Law, UL, CSA, VDE, etc. *For more details, please refer to the PDF materials or feel free to contact us.

  • others
  • Transformer

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Noise filter transformer for equipment embedding "NFT-P series"

The pin terminal structure allows for direct mounting on the printed circuit board, significantly reducing wiring labor.

The "NFT-P Series" is a noise filter transformer for equipment integration, categorized into five types with power ratings from 2VA to 40VA, and capable of accommodating various specifications with input voltages from 80V to 240V and output voltages from 5V to 240V as needed. It complies with various international standards such as Electrical Appliance and Material Safety Law, UL, CSA, VDE, and CISPR. We can also accommodate requests for lead wire configurations. Please utilize it for EMC measures. 【Features】 ■ Pin terminal type ■ Immediate support for EMC measures ■ Prevents noise emission and reception ■ Eliminates malfunctions ■ Significantly reduces wiring labor *For more details, please refer to the PDF materials or feel free to contact us.

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  • Transformer

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Active Water Device "νG7 (New G Seven)"

A water revitalizer that transforms water into highly functional water (quantum water) by passing it through a stainless steel field converter, charging the electrons.

The "νG7 (New G7)" is a quantum water device that requires no maintenance. When water (H2O, dihydrogen oxide) passes through this product, the hydrogen bonds of the water affected by magnetic and weak electromagnetic fields within the hexagon field converter loosen, partially ionizing it and activating it as high-energy potential water that contains oxygen and hydrogen in gas form. The activated water has increased dissolving power and permeability, making it noticeable in phenomena such as water boiling more easily, plants thriving, and oil stains being easier to remove. 【Features】 ■ Obtained Japanese Patent No. 4063768 ■ Sterilization and deodorization effects ■ Increases lactic acid bacteria ■ Improved surfactant power ■ Generates trace amounts of hydrogen ■ Cost-effective with no expenses required after installation *For more details, please download the PDF or contact us.

  • Water supply facilities
  • Transformer

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Improving water environments in residential and commercial settings! Case studies and comprehensive catalogs are currently available.

The amount of sludge in the grease trap has drastically decreased, and there are many achievements such as the elimination of ammonia odors in nursing facilities. We achieve a hygienic environment through water quality improvement!

This catalog introduces the 'νG Series' handled by Wellness Co., Ltd. Starting with the "Hexagon AUTO," which allows for easy production of quantum water at home, we also feature products such as "Rebirth" and the "νG7 Series (water activator)." We showcase a wide range of products that can activate all household water for drinking, cooking, and bathing, along with accompanying photos. [Featured Products (excerpt)] ■ Rebirth ■ Hexagon AUTO ■ νG Shower Head ■ νG7 Terahertz 1100 ■ Terahertz 171 Converter We have numerous achievements in restaurants, nursing facilities, agriculture, and livestock industries. We also present case studies, so for more details, please refer to the PDF materials or feel free to contact us.

  • Water Treatment
  • Transformer

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Maintenance-free active water device that contributes to odor prevention *with examples from care facilities

[Free Sample Available] Introducing case studies from nursing care facilities! A maintenance-free water purifier that reduces slime and unpleasant odors in water areas.

We would like to introduce a case where the maintenance-free water revitalizer 'νG7' was implemented at the Fukujuen nursing home located in Koyu District, Miyazaki Prefecture. Since its introduction, there has not been a single instance of the facility's unique odor, which had been a concern at the nursing home. Urine scale in the toilets has disappeared, and there is no longer any slime or water stains around the water areas. Additionally, dirt and mold in the baths have clearly decreased. Our product does not require filter replacements and does not need frequent cleaning, making it cost-effective as well. 【Case Overview】 ■ Installation Location: Fukujuen Nursing Home (Koyu District, Miyazaki Prefecture) ■ Equipment Installed: Maintenance-free water revitalizer "νG-7 (20A)" ■ Benefits of Installation - The facility's unique odor has disappeared - A sense of cost-effectiveness *For more details, please refer to the PDF document or feel free to contact us. *If you would like a sample, please indicate "Request for Free Sample" in your inquiry.

  • Water Treatment
  • Transformer

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Swimming school, case study on water quality improvement of pool facilities │ Water purifier 'νG7'

Reduced chlorine costs by one-third! The amount of chlorine used has decreased, and I no longer worry about the smell of chlorine, rough hair, or wrinkled skin.

We would like to introduce a case study of the 'νG7' that we handle, implemented at Asuka Swimming School (Nara Prefecture). From the day after installing the νG7, the 25m pool became so clear that it looked pristine, and the costs associated with chlorine were reduced by one-third. The odor from the restrooms disappeared, and customers felt the effectiveness in virus prevention. Some customers who took bottles home also reported improvements in their troubling symptoms! I had been concerned about the smell of chlorine and the roughness of my hair and the wrinkles on my skin due to irritation, but after introducing this product, I noticed a change in water quality in about two weeks. 【Case Summary】 ■ Installation Location: Asuka Swimming School ■ Product Introduced: νG7 ■ Effects of Introduction - The water quality of the pool improved from the second day after installation. - The chlorine smell disappeared, and the irritation from chlorine was eliminated. - There was no odor in the pipes, especially the ammonia smell in the restrooms was gone. *For more details, please download the PDF or feel free to contact us.

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  • Water Treatment
  • Transformer

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Nano crystal common mode choke coil

Using nanocrystalline soft magnetic materials is extremely effective for low-frequency noise countermeasures!

Product Outline and Features This is a common mode choke coil using nanocrystalline soft magnetic materials. Compared to ferrite core CMC, it has high noise attenuation characteristics in the kHz range. It ensures stable impedance characteristics over a wide temperature range. Customization is available; please consult us for various modifications. Common mode chokes using nanocrystal cores. Excellent low frequency properties. Stable performance over a wide temperature range. SEIWA offers special ordered CMC.

  • Wiring devices
  • Transformer

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Three-phase nano-crystal common mode choke coil

Common mode choke coil using nanocrystalline soft magnetic materials as noise countermeasure components for high current substrates. Extremely effective for low-frequency noise countermeasures!

Product Outline and Features This product uses a new nanocrystal material for the core, allowing for greater effectiveness. By adopting the nanocrystal common mode choke coil, it is possible to reduce the capacitance of surrounding capacitors, enabling space-saving design. This is a common mode choke coil made with nanocrystalline soft magnetic material. Compared to ferrite core CMC, it has high noise attenuation characteristics in the kHz range. It ensures stable impedance characteristics over a wide temperature range. Customization is available; please consult us for various modifications. Common mode chokes using nanocrystal cores. Excellent low frequency properties. Stable performance over a wide temperature range. SEIWA offers special ordered CMC.

  • Wiring devices
  • Transformer

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Amorphous Power Choke Coil Model GR5535

Miniaturization! This is a chalk coil based on powdered amorphous magnetic materials.

The GR5535 model amorphous power choke coil is made based on powdered amorphous magnetic material. Compared to conventional ferrite materials, it has significant features such as high saturation magnetic flux density, miniaturization, and low loss in the high-frequency range. By combining 2 to 4 identical products in series or parallel connections, it is possible to change the inductance, rated current, direct current resistance, and resonance frequency. 【Features】 ○ Based on powdered amorphous magnetic material ○ High saturation magnetic flux density ○ Miniaturization and low loss in the high-frequency range ○ High degree of freedom in capacity and characteristics by combining multiple coils ○ Core material: NT-811AS10 (NTN) For more details, please contact us or download the catalog.

  • Power generation equipment
  • Transformer

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Power choke coil NR4030 type

Multi-purpose use! This is a choke coil with a temperature range of -40 to +120℃.

The NR4030 type is a power choke coil designed for multi-purpose applications based on ferrite magnetic materials. By changing the combination, quantity, and connection method of the coils, the capacity can be increased and the options for characteristics can be expanded. Additionally, by altering the installation method for existing locations, it can flexibly accommodate height restrictions and space-saving requirements. It is compact, easy to handle, simple to install, and offers a wide variety of winding options, contributing to cost reduction. 【Features】 ○ Flat rectangular wire edgewise winding: High winding occupancy rate, optimal for high current applications. ○ Litz wire (twisted wire) winding: Very good high-frequency characteristics, reduces temperature rise, and increases Q characteristics. ○ Single wire (enameled wire) winding: Allows for the creation of high-performance products through various winding material selections. ○ Voltage resistance: Core-coil DC1KV for 1 minute. ○ Insulation resistance: Core-coil DC500V over 100MΩ. For more details, please contact us or download the catalog.

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  • Transformer

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Power choke coil NR2635 type

Multi-purpose use! This is a choke coil based on ferrite magnetic material.

The NR2635 type is a power choke coil designed for multi-purpose applications based on ferrite magnetic materials. The flat wire edgewise winding has a high winding occupancy rate, making it ideal for high current applications. The litz wire winding offers excellent high-frequency characteristics and reduces temperature rise. The single wire winding allows for the selection of various winding materials, enabling the creation of high-performance products. It is compact, easy to handle, easy to install, and offers a wide variety of winding options, contributing to cost reduction. 【Features】 ○ Voltage resistance: Core-coil DC1KV for 1 minute ○ Insulation resistance: Core-coil DC500V over 100MΩ ○ Operating temperature range: -40℃ to +120℃ ○ Compliant with RoHS directive ○ Suitable for multi-purpose applications For more details, please contact us or download the catalog.

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Permalloy Dust Choke Coil

Chalk coils that can be designed in a compact size!!

This is a coil using a pressed iron core made from nickel-iron alloy permalloy powder. It features good DC superimposed characteristics against large currents and very little change in properties with temperature. Additionally, it has low iron loss at high frequencies, allowing for a compact design compared to ferrite cores.

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[Technical Information] A Discussion for Coil Users *Available for Free!

Technical materials are provided to help understand coils, including the differences between coils and inductors.

Among electronic components, it is often heard that coils are very difficult to understand. In this document, we have published a technical column titled "A Talk for People Who Use Coils" to help you understand coils better and encourage their use. We hope it will be helpful for those who are actually designing with coils. 【Contents (Excerpt)】 ■Difference between coils and inductors ■Coil parameters (electrical specifications) ■Coil inductance ■Inductors and heat generation ■Coil Q *For more details, please refer to the PDF document or feel free to contact us.

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First Coil Story" Episode 2: "The Function of the Coil (Noise Removal)

I will explain in detail about the noise removal due to the operation of the coil.

"What is a coil?" This is an introductory column that explains it in an easy-to-understand manner for those learning about it for the first time. It will be published in six parts. Coils have four main functions. In the second installment, we will explain "noise removal." [Contents] ■ Functions of a coil ■ Functions of a coil (Noise removal) - What is noise? *For more details, please refer to the PDF document or feel free to contact us.

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