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Transformer Product List and Ranking from 157 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Nov 19, 2025～Dec 16, 2025
This ranking is based on the number of page views on our site.

Transformer Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Nov 19, 2025～Dec 16, 2025
This ranking is based on the number of page views on our site.

  1. TSURUTA ELECTRIC CO., LTD. Ibaraki//Industrial Electrical Equipment
  2. ジェーピーシー Tokyo//Electronic Components and Semiconductors
  3. オーエン Saitama//Electronic Components and Semiconductors
  4. 4 松田精機 Hyogo//Manufacturing and processing contract
  5. 5 MEIHO Electronics Co., Ltd. Head office:Nagoya, Japan Tokyo branch:Chiyoda-ku, Tokyo Aichi//Trading company/Wholesale
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Transformer Product ranking

Last Updated： Aggregation Period:Nov 19, 2025～Dec 16, 2025
This ranking is based on the number of page views on our site.

  1. Three-phase transformer for solar power generation 50kVA~ PPSC slave device TSURUTA ELECTRIC CO., LTD.
  2. UL・CE compliant compact lightweight energy-saving transformer MEIHO Electronics Co., Ltd. Head office:Nagoya, Japan Tokyo branch:Chiyoda-ku, Tokyo
  3. Three-Phase Double-Winding Isolation Transformers Large Capacity TH Series/Japanese Domestic Standard TSURUTA ELECTRIC CO., LTD.
  4. 4 Isolation Transbox Series for Medical Devices CDF・CFW 東亜電子
  5. 4 Film polishing device "SP-100 type" 松田精機

Transformer Product List

661～675 item / All 846 items

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*Technical materials are being presented! Musashino Tsukou "Transformer and Reactor Comprehensive Catalog"*

*Technical materials are being presented! Musashino Tsukou "Transformer and Reactor Comprehensive Catalog"*

One-stop support from design to mass production! Technical information such as key material data and winding techniques (edgewise winding of rectangular wire, litz wire) is also included! Please take a moment to read it.

This catalog is a comprehensive catalog of products handled by Musashino Doko Co., Ltd. It includes a variety of items such as "power transformers," "control transformers for distribution boards," "reactors," and "switching transformers." We provide high-quality transformers backed by reliable technology, from design to mass production, all in a one-stop service. We invite you to read through it. *For those who wish, we will send the comprehensive catalog by mail, so please feel free to download it or contact us! [Contents] <Power Transformers> ■ Board-mounted transformers ■ Transformers for equipment installation ■ NCW transformers ■ OI transformers ■ Cut core transformers *For more details, please refer to the PDF materials or feel free to contact us.

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[Custom Order Example] Slim OI Transformer Compliant with DIN Standards

[Custom Order Example] Slim OI Transformer Compliant with DIN Standards

Customization requiring delicate processing! Introduction of a case where we manufactured a transformer that fits into the customer's product.

We would like to introduce an example of a slim OI transformer that complies with DIN standards. We received a request from a customer who wanted to adopt a power transformer that fits within a 1 DIN size but was struggling with the height limitations of existing slim transformers. In response, our company further customized the well-regarded OI transformer, known for its slim design under 100W, to create a transformer that fits the customer's product. By utilizing the dead space of the O-shaped iron core to draw out taps, we achieved a slim design and size reduction. 【Custom Product Specifications】 ■ Size and Dimensions: 73mm × 50mm × 35mm ■ Voltage Specifications: Primary Voltage 100–200V / Secondary Voltage 100–200V ■ Capacity: 8–156VA ■ Applicable Standards: JIS-C6436 ■ Insulation Type: Class E ■ Products Used: Measurement equipment, disaster prevention equipment *For more details, please refer to the PDF document or feel free to contact us.

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High-frequency transformer with controlled inductance tolerance for flyback transformer.

High-frequency transformer with controlled inductance tolerance for flyback transformer.

We can provide high-precision prototypes with short delivery times through cross-adjustment by processing! This transformer can accommodate from EPC17 to large cores.

We would like to introduce a case of a flyback transformer with controlled inductance tolerance. In the development of switching power supplies, we received a request to reduce the inductance variation of the flyback transformer and to conduct early practical evaluations of the transformer. Typically, inductance adjustments are made using processed products from ferrite core manufacturers or space materials, but there are challenges regarding delivery times and accuracy. However, our company, which owns grinding processing equipment, has overcome these challenges and was able to provide prototypes in a short time. Additionally, this transformer can accommodate sizes from EPC17 to large cores. 【Custom Product Specifications】 ■ Size and Dimensions: EER9.5 to PQ100 ■ Applicable Standards: UL1446 ■ Insulation Type: Class B ■ Products Used: Industrial equipment, medical devices, measuring instruments *For more details, please refer to the PDF document or feel free to contact us.

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Trans Reactor Custom-Made Service

Trans Reactor Custom-Made Service

We will support the introduction from the specification review and design stage!

We offer custom-made transformers and reactors. We support you from the specification consideration and design stage, and can respond to a wide variety of customer requests, including the application of international safety standards and the reproduction of other companies' off-the-shelf products. Please feel free to contact us with your requests. 【Features】 ■ Custom-made to match usage conditions and product specifications ■ Support from transformer selection and capacity calculation to implementation ■ Comprehensive support from design compliant with international safety standards to standard application ■ Proposals for reproduction and improvement of other companies' off-the-shelf products ■ Flexible response to small lot and prototype projects *For more details, please contact us.

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High Current High Frequency Compatible Custom Transformer for EV Fast Chargers

High Current High Frequency Compatible Custom Transformer for EV Fast Chargers

We can address various challenges such as heat generation and loss measures in high-frequency skin effect, improving magnetic coupling efficiency, and provide one-stop support from design development to mass production!

"Are you having trouble selecting transformers or choke coils in the high-frequency range?" ◆ High heat generation and losses ◆ Low magnetic coupling, large leakage flux, and leakage inductance ◆ Unable to select the configuration of litz wire (stranded wire) ◆ Cannot achieve DC superimposition characteristics "Musashino Electric has various know-how to solve your problems!" ★ Measures against skin effect in the high-frequency range Suppression of current distribution distortion through subdivision of conductors using litz wire ★ Measures to improve magnetic coupling Significant improvement in magnetic coupling through our unique method of "sandwich winding" ★ Proposal for litz wire configuration Based on abundant experimental data, we propose an optimal balance of litz wire (wire diameter, number of twists, number of turns) in terms of efficiency vs. heat generation. ★ Proposal and grinding processing of magnetic materials suitable for the frequency range We propose magnetic materials with suitable high-frequency characteristics such as ferrite, dust, and amorphous materials. Achieve low tolerance inductance values through gap processing with our uniquely developed magnetic material grinding equipment. ◎ We design and develop custom transformers and choke coils suitable for various power conditioners and motor drive inverters that meet high-frequency high current requirements, overcoming various challenges!

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Isolation Transformer "Noise Attention Type"

Isolation Transformer "Noise Attention Type"

An isolation transformer that demonstrates sufficient effectiveness against induced noise from lightning strikes!

The insulated transformer "Noise Attention Type" is a product designed to prevent various types of noise from entering through the power line. It has very low leakage current, making it suitable for medical devices. Additionally, it can be used with both input and output voltages of 100V or 200V. 【Features】 ■ Provides sufficient effectiveness against induced noise from lightning strikes ■ Extremely low electrostatic content between input and output due to triple shielding *For more details, please download the PDF or feel free to contact us.

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  • Transformers

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400Hz dedicated small power transformer

400Hz dedicated small power transformer

You can choose the output based on efficiency and temperature rise! If the output VA is similar, the same dimensions are also possible.

We handle "400Hz Dedicated Small Power Supply Transformers." We have prototyped models PK19(7) and PK26. Output can be selected based on efficiency and temperature rise. The withstand voltage is 1.5KV, but the voltage between the secondary cores is set at 1KV. If the input and output voltage values have slight variations and the output VA is approximately the same, we can also accommodate the same dimensions, so please feel free to consult with us. 【Features】 ■ Output can be selected based on efficiency and temperature rise ■ Withstand voltage is 1.5KV, but the voltage between the secondary cores is 1KV ■ Custom products can be accepted based on these criteria *For more details, please refer to the PDF document or feel free to contact us.

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Toroidal transformer, toroidal coil (custom-made product)

Toroidal transformer, toroidal coil (custom-made product)

A high-end transformer that achieves excellent efficiency and voltage fluctuation rate, with low leakage and space-saving design. Compatible with everything from automatic winding to complex specifications for manual winding.

This product achieves excellent efficiency and voltage fluctuation rates, featuring low leakage and a space-saving high-end transformer. By using a core that maximizes magnetic properties without cutting processes, it can achieve high efficiency and miniaturization. It can be used in broadcasting equipment, measuring instruments, medical devices, and audio applications. Using a toroidal core, it can be manufactured according to design specifications such as arbitrary number of turns, inductance, and current values. It supports insulation types from Class A to Class B. RoHS compliance is possible. It can be produced from automatic winding to complex hand-wound specifications. ★☆★☆Regarding inquiries from customers not registered with Ipros★☆★☆ For inquiries from unregistered Ipros users, please contact us through the related link below. 【Nikko Electric Co., Ltd. Inquiry Form (Please contact us here if you are not registered with Ipros)】 ☆★☆★↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓☆★↓↓↓↓↓↓↓↓☆★ ☆★☆★↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓☆★↓↓↓↓↓↓↓↓☆★ ☆★☆★↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓☆★↓↓↓↓↓↓↓↓☆★

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コイルボビン式巻鉄心変圧器『NCWトランス』

コイルボビン式巻鉄心変圧器『NCWトランス』

狭いスペースにトランスを設置したい！省スペース・軽量・高効率を実現

★☆2022年4月1日より本社・工場の電気は100%再エネ電気を採用しております。 日幸電機の製品は【CO2フリー電気から生まれる電源トランス】へ★☆ 『NCWトランス』は、“ロ”の字型のコイルボビンに巻線がされ、 コイルボビンの両端に帯状の珪素鋼板が巻き付けられた巻鉄心変圧器。 優れた鉄心素材をムダなく活用しているため、装置重量の大幅削減 作業効率の大幅アップが期待されます。 さらに、1次コイルと2次コイルが完全に独立しているため、高い絶縁性能を実現しました。 ※詳しくはPDF資料をご覧いただくかお気軽にお問い合わせ下さい。 ★☆★☆イプロス未登録のお客様の問い合わせに関して★☆★☆ イプロス未登録の方のお問い合わせは、 本文下にある関連リンク 【日幸電機株式会社問い合わせフォーム(※イプロス未登録の方はこちらからお問い合わせください)】 よりお問い合わせください ☆★☆★↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓☆★↓↓↓↓↓↓↓↓☆★ ☆★☆★↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓☆★↓↓↓↓↓↓↓↓☆★

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Cut core transformer (custom-made product).

Cut core transformer (custom-made product).

Custom-made cut-core transformers tailored to customer specifications. The compact and lightweight design improves workability and efficiency during implementation.

As of April 1, 2022, our headquarters and factory have adopted 100% renewable energy electricity. The products of Nikkou Electric are powered by CO2-free electricity. ■ Production Range Single-phase Type Core Size: CS6.3 to CS2500 : SL1700 to SL7500, etc. Three-phase Type Core Size: SE201 to SE215, etc. Compared to conventional punched types, we have achieved miniaturization and weight reduction. The magnetic characteristics are also excellent, and by using materials like super cores, we can reduce losses in high-frequency equipment. Our products can be considered not only for commercial power transformers but also for high-frequency power transformers. ★☆ Inquiries from customers not registered with Ipros ☆★ For inquiries from those not registered with Ipros, please use the related link below. 【Nikkou Electric Co., Ltd. Inquiry Form (For those not registered with Ipros, please contact us here)】 Please reach out to us. ☆★☆★↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓☆★↓↓↓↓↓↓↓↓☆★ ☆★☆★↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓☆★↓↓↓↓↓↓↓↓☆★ ☆★☆★↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓☆★↓↓↓↓↓↓↓↓☆★

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Wound Iron Core Transformer NCW Transformer Product Catalog (Nikko Electric)

Wound Iron Core Transformer NCW Transformer Product Catalog (Nikko Electric)

A transformer that achieves space-saving, lightweight, and high efficiency! Comparison data is also included! (Compared to our products)

This catalog introduces the wound core transformer "NCW Trans." Our product is manufactured based on the concept of winding a core around a coil bobbin. It is a transformer that achieves space-saving, lightweight, and high efficiency. Additionally, we have included data comparing the EI type (1kVA) and NCW1000 (1kVA) based on our company's standards. [Contents] ■ Features of NCW Trans ■ Comparison between EI type (1kVA) and NCW1000 (1kVA) (based on our company) - Space-saving section - Lightweight section - High efficiency section *For more details, please refer to the PDF document or feel free to contact us.

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Wound Iron Core Transformer "NCW Trans" (Nikko Electric)

Wound Iron Core Transformer "NCW Trans" (Nikko Electric)

No joints, minimal leakage flux! A structure where the primary winding, secondary winding, and core are separately insulated!

The "NCW Transformer" is a wound iron core transformer designed based on the concept of winding an iron core around a coil bobbin, achieving space-saving, lightweight, and high efficiency. The structure features winding on a "U" shaped coil bobbin, with strip-shaped silicon steel sheets wrapped around both ends of the coil bobbin. It allows for efficient iron core winding operations and winding work using an automatic winding machine. 【Features】 ■ Efficiency in iron core winding operations ■ Winding work possible with an automatic winding machine ■ Complete separation of primary and secondary windings ■ Use of oriented silicon steel sheets ■ Full utilization of iron core performance due to no cuts ■ No joints, resulting in minimal leakage flux *For more details, please refer to the PDF document or feel free to contact us.

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Cut core transformer.

Cut core transformer.

Compact and lightweight design is achievable! We are also considering high-frequency power transformers!

The "Cut Core Transformer" can achieve miniaturization and weight reduction compared to punched core types. It also has excellent magnetic properties, allowing for reduced losses in high-frequency devices through the use of materials like super core. We encourage consideration not only for commercial power transformers but also for high-frequency power transformers. 【Features】 ■ Achieves miniaturization and weight reduction ■ Excellent magnetic properties ■ Reduces losses in high-frequency devices *For more details, please refer to the PDF materials or feel free to contact us.

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NCW Trans (No Cut Roll).

NCW Trans (No Cut Roll).

Greatly contributes to energy conservation! Coil bobbin-type laminated core transformer with high insulation performance.

The "NCW Transformer" is a coil bobbin type transformer that provides appropriate power for various applications. It is manufactured based on the concept of "winding a core with a coil," featuring energy efficiency, compact size, lightweight and slim design, high performance, and cost-effectiveness. It has high reliability due to the adoption of bobbins compliant with IEC742 and UL94V-0. 【Features】 ■ Achieves high insulation performance ■ Available in a series from 100VA to 2,500VA ■ Insulation type compatible with Class B ■ RoHS compliant ■ High reliability due to the adoption of bobbins compliant with IEC742 and UL94V-0 *For more details, please refer to the PDF document or feel free to contact us.

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Insulated transformer for PCS for solar power generation (with case)

Insulated transformer for PCS for solar power generation (with case)

Insulated transformer for PCS for solar power generation (enclosed case)

【Features of Insulation Transformer Products for Solar Power Generation PCS】 ★ Enables stable power supply with insulation specifications for power generation systems and power grids ★ Comes with a breaker storage box (IP34) (including terminal blocks, breakers, etc.) ★ Prevents leakage current ★ Can be used with heavy-duty round (optional) ★ Compatible with PCS installation (optional) ★ Custom design can be considered for each installation condition. Energy-saving type (optional) Uses amorphous core to reduce standby power (no-load loss) during non-generation at night, demonstrating energy-saving effects.

  • Solar power generator

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