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Switching Power Supply Product List and Ranking from 78 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Oct 22, 2025～Nov 18, 2025
This ranking is based on the number of page views on our site.

Switching Power Supply Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Oct 22, 2025～Nov 18, 2025
This ranking is based on the number of page views on our site.

  1. ダイトロン Tokyo//Trading company/Wholesale
  2. OZUNO TRADING JAPAN Tokyo//Building materials, supplies and fixtures
  3. ブライト 東京支店 Tokyo//Electronic Components and Semiconductors
  4. 4 null/null
  5. 5 アイガ電子工業 Ibaraki//Industrial Electrical Equipment
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Switching Power Supply Product ranking

Last Updated： Aggregation Period:Oct 22, 2025～Nov 18, 2025
This ranking is based on the number of page views on our site.

  1. Ultra-Low Noise Power Supply Series ダイトロン
  2. Ultra-Low Noise Switching Power Supply 'LFS50A/LFS150A' ダイトロン
  3. 50W Ultra-Low Noise Switching Power Supply 'RFS50A' ダイトロン
  4. 4 DIN rail switching power supply 'STEP3 USB'
  5. 5 300W Ultra-Low Noise Switching Power Supply 'PFS300A' ダイトロン

Switching Power Supply Product List

136～150 item / All 464 items

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[Power Supply Design Proposal Example] Ultra-wide range support for input DC 24V to 110V.

[Power Supply Design Proposal Example] Ultra-wide range support for input DC 24V to 110V.

By eliminating the switch, it is possible to achieve stable output! Reliability has also improved!

We received a request from a customer to develop a power supply with an ultra-wide input voltage range of 12 to 110V. Typically, when the range is wide, it is necessary to separate the power supply by input voltage, such as 12 to 24V or 48 to 72V, or to use a switch to toggle between them. By using a buck-boost switching converter that can automatically switch between boost and buck operations, we can accommodate an ultra-wide input range of DC 24V to 110V. Eliminating the switch allows for stable output and improves reliability. [Challenges] ■ Development of a power supply with an ultra-wide input voltage range of 12 to 110V ■ When the range is wide - It is necessary to separate the power supply by input voltage, such as 12 to 24V or 48 to 72V - Or it is necessary to use a switch to toggle between them *For more details, please refer to the related link page or feel free to contact us.

  • Power Supplies

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[Power Supply Design Proposal Example] Miniaturization in Wide Range Power Supplies

[Power Supply Design Proposal Example] Miniaturization in Wide Range Power Supplies

Adopted synchronous rectifier circuit for output! Achieved high efficiency within the size of 60×250×150!

We received a request to fit a power supply with an output of 24V 10A and an input of AC 100-200V wide range, including peripheral circuits such as output signal control, into a size of 60×250×150. Typically, in natural air cooling, the power supply is calculated at 8.5cc per watt, and if a standard circuit design is used, it will not fit within the requested size. Therefore, our company has achieved high efficiency by adopting a synchronous rectification circuit at the output to enhance the conversion efficiency of the switching regulator, fitting it into the size of 60×250×150. [Challenges] ■ Power supply with output of 24V 10A and input of AC 100-200V wide range - We want to fit it into a size of 60×250×150, including peripheral circuits such as output signal control. *For more details, please refer to the related link page or feel free to contact us.

  • Power Supplies

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[Free Handbook] "Circuit Configuration and Design Methods of Switching Power Supplies"

[Free Handbook] "Circuit Configuration and Design Methods of Switching Power Supplies"

An explanation of the basics of power circuit design, including how to determine specifications, an overview of the main circuits and principles of switching power supplies!

The handbook "Circuit Configuration and Design Methods for Switching Power Supplies" explains the key items to keep in mind when designing power supply circuits, using specific circuit diagrams. It is an essential book for engineers involved in the development and design of switching power supplies. 【Contents】 ■ Key items in power supply circuit design ■ Types and characteristics of power supply circuits 　◎ Chopper method 　◎ Converter method 　　Flyback converter method, forward converter method, 　　active clamp forward method, push-pull method, 　　half-bridge method, full-bridge method ■ Main circuits and basic principles of switching power supplies 　　Switching circuit configuration, function of transformers, filter circuits, 　　inrush current limiting circuits, input reverse connection circuits, input smoothing circuits, auxiliary power supply circuits, 　　active clamp circuits, snubber circuits, output smoothing circuits, 　　check terminal protection, thermal design, momentary power interruption circuits, startup and shutdown circuits *If you would like the handbook, please request the materials or view the PDF data (excerpt version) from the download.

  • Switching Power Supply

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Switching power supply / power supply unit repair/replacement service

Switching power supply / power supply unit repair/replacement service

If the cause of the failure is unknown, we will conduct a failure analysis to identify the faulty part and propose repair details.

We offer repair and replacement services for switching power supplies and power devices. For aging equipment's power supplies, we provide repair services that consider replacement with equivalent parts. We address not only failures due to aging but also unexpected breakdowns. Repairing power supplies allows for the operation of equipment and devices, helping to reduce investment costs. 【If you have these concerns】 ■ I want to request repairs, but the manufacturer has gone out of business, and there are no contractors available. ■ I am considering new installation due to a breakdown, but since it takes time for delivery, I would like to temporarily extend the life through repairs. ■ The equipment is aging, and the manufacturer will not accept repairs for the power supply. *For more details, please refer to the PDF document or feel free to contact us.

  • Calibration and repair

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Cordless Electric Tool Reference Design

Cordless Electric Tool Reference Design

Equipped with 40V U-MOSIX-H series MOSFET!

We provide a reference design for motor drive circuits for cordless electric tools, assuming the application of three-phase DC brushless motors. By applying a new generation process and optimizing the element structure, we achieve low on-resistance, low output charge, and low switching surge voltage. 【Features】 ■ Switchable between two types of motor drive methods: rectangular wave drive and sinusoidal wave drive ■ The board is equipped with a three-shunt current detection circuit, compatible with sensorless control ■ Protection functions against abnormalities such as overcurrent are included *For more details, please download the PDF or feel free to contact us.

  • Other electronic parts

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Power Distribution Unit 'AXPHDY-PDU'

Power Distribution Unit 'AXPHDY-PDU'

Various current and voltage monitoring with a maximum of 12 bits. The control units are configured to not interfere with each other.

The "AXPHDY-PDU" is a device that distributes supplied power into a 28V unregulated power supply and a 5V regulated power supply. The power supply path is configured with complete dual redundancy, and the control units are designed to not interfere with each other. This allows for continued power supply to connected devices even if part or all of one control circuit fails. 【Features】 ■ UVC and overcurrent trip control functions for connected devices ■ OBC communication function via RS422/485 (Command reception & control, telemetry transmission) ■ Electrically isolated configuration between analog and digital sections ■ Electrically isolated configuration between BUS power and 5V power ■ Various current and voltage monitoring with up to 12-bit resolution *For more details, please refer to the PDF document or feel free to contact us.

  • Other power sources

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Technical Data: About DC Constant Voltage Constant Current Power Supply

Technical Data: About DC Constant Voltage Constant Current Power Supply

Detailed explanation of the rack/accessory and variable switching series!

This document introduces a DC constant voltage and constant current power supply. The rack/accessories section includes dimensional drawings and installation images of the plank panel and rack frame. For the variable switching series, explanations of the front panel, rear panel, and connections for input and output wires are provided with accompanying diagrams. [Contents (excerpt)] ■ Rack/Accessories - Plank Panel - Rack Frame - Installation Images *For more details, please download the PDF or feel free to contact us.

  • power supply

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UNOWT3010

UNOWT3010

Switching power supply

This is a standard switching power supply with a 10W rating that is compatible with installation. It is designed to match the installation size of market products, making it an ideal model for replacing your existing power supply.

  • Switching Power Supply
  • power supply

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UNOWT3015

UNOWT3015

Switching power supply

This is a standard switching power supply with a 15W model that is compatible with installation. It is designed to match the installation size of market products, making it an ideal model for replacement from your existing power supply, and features a simple circuit design.

  • Switching Power Supply

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UNOWT3030

UNOWT3030

Switching power supply

This is a standard switching power supply of 30W that is compatible with installation. It is designed to match the installation size of market products, making it an ideal model for replacement from your existing power supply, and it allows for voltage adjustment.

  • Switching Power Supply

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UNOWT3050

UNOWT3050

Switching power supply

This is a standard switching power supply with a 50W rating that is compatible with installation. It is designed to match the installation size of market products, making it an ideal model for replacement from your existing power supply, and it allows for voltage adjustment.

  • Switching Power Supply

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UNOWT3100

UNOWT3100

Switching power supply

This is a standard switching power supply of 100W that is compatible with installation. It is designed to match the installation size of market products, making it an ideal model for replacement from your existing power supply, and it allows for voltage adjustment.

  • Switching Power Supply

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Toroidal transformer

Toroidal transformer

Compact and lightweight! Introducing a toroidal transformer that can be mounted on a printed circuit board with a slim design.

We would like to introduce our "Toroidal Transformers." Using "wound iron cores" as transformers for miniaturization and weight reduction of equipment is a good utilization method that takes advantage of the properties of magnetic materials. Recently, the performance of magnetic materials has significantly improved in terms of high magnetic flux density and low loss. By effectively using these advanced magnetic materials, we can achieve a reduction of over 40% in volume and more than 30% in weight compared to conventional cut-core transformers. This transformer is highly promising for miniaturization and weight reduction of equipment. 【Features】 ■ Compact and lightweight (volume and weight are less than 2/3 of cut-core types) ■ Slim design allows for mounting on printed circuit boards ■ Minimal leakage flux *For more details, please refer to the PDF document or feel free to contact us.

  • transformer

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TS shape transformer

TS shape transformer

For 3-phase power supply transformers! Widely used in a reliable manner for marine applications, automatic control, and more.

We would like to introduce our "TS Type Transformer." Designed for three-phase power supply transformers, the "41TS Type" features insulation varnish treatment, while the "61TS Type" is coated with epoxy resin. It excels in moisture resistance and salt damage resistance, making it widely used in marine applications, automatic control systems, and more, with high reliability. 【Features】 ■ For three-phase power supply transformers ■ Excellent moisture resistance and salt damage resistance ■ Widely used in marine applications, automatic control systems, etc., with high reliability ■ 41TS Type: Coated with insulation varnish treatment ■ 61TS Type: Coated with epoxy resin *For more details, please refer to the PDF document or feel free to contact us.

  • transformer
  • Transformers

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Cut core transformer

Cut core transformer

A lineup including "43・63VC type" and "16CD type・22CD type" using cut cores in iron hearts.

We would like to introduce our "Cut Core Type Transformers." Starting with the "43・63HA type," we also offer the "43・63VC type" which uses a cut core in the iron core, as well as the "16CD type, 22CD type," and "43HC type, 63HC type" in our lineup. Please feel free to contact us when you need our services. 【Features of the 43HC type and 63HC type】 ■ Uses a cut core in the iron core ■ Compact and lightweight structure ■ Excellent vibration resistance ■ Good moisture resistance ■ High reliability *For more details, please refer to the PDF materials or feel free to contact us.

  • transformer
  • Transformers

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