We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for Switching Power Supply.
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Switching Power Supply Product List and Ranking from 77 Manufacturers, Suppliers and Companies | IPROS GMS

Last Updated： Aggregation Period:Jan 21, 2026～Feb 17, 2026
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:Jan 21, 2026～Feb 17, 2026
This ranking is based on the number of page views on our site.

  1. Daitron Co., Ltd. Tokyo//Trading company/Wholesale
  2. null/null
  3. GO FORWRAD ENTERPRISE CORP Taiwan//Electronic Components and Semiconductors
  4. 4 ユタカ電機製作所 Tokyo//Industrial Electrical Equipment
  5. 5 神鋼商事 機械・溶接本部　機械ユニット　産機・情報機材部　機能材料グループ Osaka//Trading company/Wholesale
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Switching Power Supply Product ranking

Last Updated： Aggregation Period:Jan 21, 2026～Feb 17, 2026
This ranking is based on the number of page views on our site.

  1. Ultra-Low Noise Switching Power Supply 'LFS50A/LFS150A' Daitron Co., Ltd.
  2. 50W Ultra-Low Noise Switching Power Supply 'RFS50A' Daitron Co., Ltd.
  3. Ultra-Low Noise Power Supply Series Daitron Co., Ltd.
  4. 4 300W Ultra-Low Noise Switching Power Supply 'PFS300A' Daitron Co., Ltd.
  5. 5 Ultra-Low Noise Power Supply "RFS, LFS, PFS Series" Daitron Co., Ltd.

Switching Power Supply Product List

121～150 item / All 475 items

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Switching Power Supply "DIMENSION X Series"

Switching Power Supply "DIMENSION X Series"

Supports high-load devices such as motors! Ideal for compact and low-cost solutions (PULS manufactured switching power supply).

The "DIMENSION X Series" is a switching power supply manufactured by PULS, developed with a focus on high efficiency, compact size, lightweight design, and ease of wiring. It is capable of supporting high-load devices such as motors with a three-phase input half-wave rectification type. It achieves high precision and stable voltage output as well as buffer time with low loss. The DIMENSION X Series is ideal for compact and low-cost solutions. 【Features】 ○ Three-phase input half-wave rectification type ○ Supports high-load devices such as motors ○ High precision and stable voltage output ○ Achieves buffer time with low loss ○ Ideal for compact and low-cost solutions ※ In the DIN rail power supply market, it achieved the world's No. 1 share in sales and production volume in 2015, according to the Global DIN Rail Power Supply Industry 2016 market research report by QYR Machinery and Equipment Research Center. For more details, please contact us or download the catalog.

  • power supply
  • UPS/Uninterruptible Power Supply
  • Switching Power Supply

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Switching power supply "DIMENSION CP10"

Switching power supply "DIMENSION CP10"

Achieved 95.2% efficiency! High-performance, high-end model with 240W single-phase input type (PULS manufactured switching power supply).

The "DIMENSION CP10" is a high-performance, high-end model that incorporates SiC modules in its LLC converter, achieving a world-class efficiency of 95.2%. This represents a 46% improvement in efficiency compared to the CS10. By re-evaluating the circuit configuration and thermal layout, we have achieved a compact design with a width of 39mm. It is a 240W single-phase input type, capable of operating at an ambient temperature of 40°C and achieving 120,000 hours at rated load, significantly exceeding previous product lifespans. 【Features】 ○ 240W single-phase input type ○ High-performance, high-end model ○ Achieves 95.2% efficiency ○ Compact design with a width of 39mm ○ Significant increase in product lifespan ※ In the DIN rail power supply market, it achieved the world's No. 1 share in sales and production volume in 2015, according to the Global DIN Rail Power Supply Industry 2016 Market Research Report by QYR Machinery and Equipment Research Center. For more details, please contact us or download the catalog.

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  • power supply
  • UPS/Uninterruptible Power Supply
  • Switching Power Supply

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Switching power supply "Railway Power Supply"

Switching power supply "Railway Power Supply"

【Comprehensive catalog giveaway!】Power supply with DC110V voltage! Railway power supply with insulated protective coating on the circuit board.

The "railway switching power supply" is a switching power supply that supports a power supply voltage of DC110V (-30%/+40%), an instantaneous voltage drop of -40% (66V), and operates for 0.1 seconds. It has a buffer time of 200% against the EN50155 Class S2 requirements. The circuit board is coated with insulation protection. We offer a lineup including 100W "QS5.241-60", 200W "QS10.241-60", and 400W "CPS20.241-60". 【Product Lineup】 ○ QS5.241-60: 100W DC input ○ QS10.241-60: 200W DC input ○ CPS20.241-60: 400W DC input ○ QS10.241-C1: 240W AC input ○ CPS20.241-C1: 480W AC input ○ QT20.241-C1: 480W AC input ※ In the DIN rail power supply market, we achieved the world's No. 1 share in sales and production volume in 2015, according to the Global DIN Rail Power Supply Industry 2016 Market Research Report by QYR Machinery and Equipment Research Center.

  • Switching Power Supply
  • Other power sources
  • power supply
  • Switching Power Supply

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Rikei Corporation / PULS GmbH

Rikei Corporation / PULS GmbH

Quickly bringing the world's advanced systems. We provide optimal solutions.

Rikei Corporation is a solution vendor in the IT and electronics industry. We provide a variety of solutions centered around cutting-edge technology and advanced products in the fields of system solutions, network solutions, and electronic components and equipment. The backbone of this is our network with some of the world's leading manufacturers and partners. We have been certified as a sales partner of PULS in Germany and have started selling a wide range of DIN rail standard switching power supplies. PULS was established in 1980 in Munich, Germany, and was the first in the world to start producing DIN rail mount type switching power supplies. Development is conducted in Germany, with production taking place in factories in the Czech Republic and China. In 2015, PULS achieved the number one global market share in sales and production volume in the DIN rail power supply market. According to the Global DIN Rail Power Supply Industry 2016 Market Research Report by QYR Machinery and Equipment Research Center.

  • Other security and surveillance systems
  • SFA/Sales Support System
  • Production Management System
  • Switching Power Supply

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Switching Power Supply Compatible with DIN Rail Standards for the Railway Industry - Explanation Document

Switching Power Supply Compatible with DIN Rail Standards for the Railway Industry - Explanation Document

Outstanding performance in Europe! Compliant with standards for vibration resistance, temperature changes, EMC noise resistance, and fire prevention.

We are currently offering a "description document" that explains the product features and specific applications of the German PULS company's "Power Supply for Railways," which we handle. "DIN-RAILway" boasts a wealth of experience in Europe as a DIN rail-compatible switching power supply that meets the stringent demands of the railway industry. 【Examples of Applications in the Railway Industry】 ■ Central Control ■ Air Conditioning ■ In-train and External Communication ■ Signals ■ Operation Safety Devices (ATC), etc. ★ We are also offering a collection of case studies related to railways in Germany and Switzerland! *For more details, please download the PDF document. Additionally, those who download the document will receive an invitation to the "Railway Technology Exhibition 2017"! Please feel free to contact us.

  • Switching Power Supply
  • Switching Power Supply

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PULS manufactured medical standard (IEC60601) certified switching power supply

PULS manufactured medical standard (IEC60601) certified switching power supply

Excellent MTBF characteristics, long lifespan! High-efficiency switching power supply that achieves continuous natural air cooling.

PULS Corporation, as a leading manufacturer of DIN rail power supplies, offers DIN rail switching power supplies certified to various standards, including railway standards (EN50501), marine standards (GL and ABS), and European explosion-proof standards (ATEX). This product is a switching power supply that has obtained certification for medical standards (IEC60601). It achieves high efficiency with continuous natural air cooling and boasts high flexibility due to DIN rail mounting. For detailed product information (main specifications), please download the PDF materials for reference. Members who download will receive detailed data sheets and the PULS product selection guide. 【Features】 ■ High efficiency achieving continuous natural air cooling (over 95%) ■ Excellent MTBF characteristics and long lifespan ■ 2MOPP (redundant measures for patient protection) *For more details, please refer to the PDF materials or feel free to contact us.

  • Switching Power Supply
  • Switching Power Supply

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[PULS] Switching Power Supply 'PIANO Series'

[PULS] Switching Power Supply 'PIANO Series'

High efficiency, long lifespan, high reliability, compact size! Achieving maximum cost performance.

The "PIANO Series" is an excellent switching power supply developed for users seeking a simple and highly reliable power source for applications. It emphasizes basic functionality while pursuing cost performance. The housing is made of sturdy and lightweight polycarbonate. Additionally, the new circuit design allows for space-saving. The 90W type can be housed in a compact size of 36x90x91mm, and it reduces power loss to less than 0.5W under no load. 【Features】 ■ Focus on basic functionality and pursuit of cost performance ■ High efficiency, long lifespan, and high reliability ■ Sturdy and lightweight polycarbonate housing ■ Monitoring function (DC-OK signal and relay contact) ■ Achieves high efficiency in a small size *For more details, please refer to the PDF materials or feel free to contact us.

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  • Switching Power Supply
  • Switching Power Supply

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High-efficiency switching power supply implemented with EtherCAT.

High-efficiency switching power supply implemented with EtherCAT.

Real-time application data! Avoid downtime and improve overall efficiency.

The power supply from PULS (Germany), which features high efficiency, ease of use, and excellent connectivity with an EtherCAT port, can be directly connected to an EtherCAT controller without the need for an additional gateway, allowing for easy and quick access to various application data and power functions. The real-time capabilities and high-speed transmission of EtherCAT are well-suited for maintenance, logging, and remote control of large-scale systems. 【Features】 ■ EtherCAT communication functionality ■ EtherCAT port (RJ45 x2, with Link/Activity LED) ■ High-speed transmission ■ Built-in: ESI file - EEPROM data ■ System optimization ■ Avoidance of downtime ■ Improvement of overall efficiency We would appreciate it if you could download the PDF file for more details. If you have any questions or concerns, please feel free to contact us.

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  • 産業用通信ネットワーク画像.png
  • Switching Power Supply
  • Switching Power Supply

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[Switching Power Supply Solutions and Proposal Examples] Innovations in Circuit Configuration

[Switching Power Supply Solutions and Proposal Examples] Innovations in Circuit Configuration

Innovative circuit configuration! Introducing a case that achieved an input voltage range of three-phase 440 to 480V.

We would like to introduce a case study of solutions and proposals for "switching power supplies." The issue we are presenting this time is the concern that "adding a transformer to accommodate high voltage increases product size and cost." Currently, there are few components that can handle the voltage, and a step-down transformer is being used to reduce the voltage. To address this, we devised a circuit configuration and used available components to achieve a switching power supply that supports an input voltage range of three-phase 400V. 【Case Overview】 ■ Challenge - Adding a transformer to accommodate high voltage increases product size and cost. ■ Result - Achieved a switching power supply that supports an input voltage range of three-phase 400V. ■ Product - Switching power supply. *For more details, please refer to the related links or feel free to contact us.

  • Switching Power Supply
  • Switching Power Supply

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Introduction of PULS Power Supply from Germany.

Introduction of PULS Power Supply from Germany.

To achieve high efficiency, we would like to introduce a power supply that contributes to carbon dioxide reduction.

We would like to introduce the power supplies manufactured by PULS that we handle. They save space in the cabinet due to their high efficiency and small size. Additionally, their high efficiency contributes to reducing operational costs for companies and lowering CO2 emissions, while the low thermal loss significantly reduces stress on electronic components. 【Features】 ■ Reduces system costs ■ Minimizes operational costs ■ Long lifespan ■ Reduces carbon dioxide emissions *For more details, please refer to the PDF document or feel free to contact us.

  • power supply
  • Switching Power Supply
  • Power Supplies
  • Switching Power Supply

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Introduction of Switching Power Supplies (15W~1500W) lineup.

Introduction of Switching Power Supplies (15W~1500W) lineup.

We offer a wide range of products! Let us introduce the switching power supplies we handle.

We would like to introduce the "Switching Power Supply" manufactured by WOONYOUNG, which we handle. We offer a wide range of capacities from 15W to 1500W. <WOOYOUNG> WOOYOUNG is a South Korean manufacturer specializing in the production of various control devices in the fields of power electronic control protection devices, automation solution control devices, power quality improvement devices, and power distribution control devices. 【Product Lineup】 DIN RAIL type Terminal block type Terminal block and DIN RAIL type *For more details, please download the materials or contact us through our website.

  • Switching Power Supply
  • Switching Power Supply

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Asia Electronics Industry Co., Ltd. Business Introduction

Asia Electronics Industry Co., Ltd. Business Introduction

Our products are active in a wide range of fields!

Asia Electronic Industry Co., Ltd. is a company engaged in the research and development, design, manufacturing, and sales of switching power supplies. We offer a range of products with a strong track record in the industrial sector, which are used in various advanced systems such as optical communication systems and transportation systems, as well as in aircraft and medical devices. With ample development and production space, we respond to our customers' new needs, so please feel free to contact us with your requests. 【Business Activities】 ■ Research and development, design, manufacturing, and sales of switching power supplies (DC-DC converters, AC-DC converters, DC-AC inverters) *For more details, please refer to our catalog or feel free to contact us.

  • Switching Power Supply
  • converter
  • Switching Power Supply

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TG13-0270-01

TG13-0270-01

Flex ATX 270W for NAS, gaming devices, and other uses.

Flex ATX 270W for NAS, gaming devices, and other uses.

  • power supply
  • power supply
  • Switching Power Supply

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250W substrate type 2x4

250W substrate type 2x4

Small size, board type 250W, single-phase output, designed to be easy.

Small size, circuit board type 250W, single-phase output, designed to be easy to use. There are four types of single-phase output: 12V/24V/48V/55V.

  • Switching Power Supply
  • Switching Power Supply

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17070 SAW12D

17070 SAW12D

The output type is code type, USB type A! The output capacity is 15W.

We would like to introduce the switching power supply '17070 SAW12D' that we handle. The specifications of this product are PSE/UL/EU/UK/AU/KC/CCC/BIS/BSMI, and the output types are cord type and USB Type A. Additionally, the output voltage/current is 5V/9V/12V/15V/24V 2.1A max. Please feel free to contact us if you have any requests. 【Specifications】 ■ Output capacity: 15W ■ Output voltage/current: 5V/9V/12V/15V/24V 2.1A max ■ Output types: cord type, USB Type A ■ Standards: PSE/UL/EU/UK/AU/KC/CCC/BIS/BSMI *For more details, please download the PDF or feel free to contact us.

  • Office supplies
  • Switching Power Supply

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20190 SAW12G/SAW15A

20190 SAW12G/SAW15A

Output voltage/current is 5V/9V/12V/15V/24V 2.5A max! The output capacity is 15W.

We would like to introduce the switching power supply '20190 SAW12G/SAW15A' that we handle. The output type of this product is a cord type, and the output capacity is 15W. The standards are PSE/UL/EU/UK/AU/KC/CCC/BIS/BSMI. Additionally, the output voltage/current is 5V/9V/12V/15V/24V 2.5A max. Please feel free to contact us if you have any requests. 【Specifications】 ■ Output capacity: 15W ■ Output voltage/current: 5V/9V/12V/15V/24V 2.5A max ■ Output type: Cord type ■ Standards: PSE/UL/EU/UK/AU/KC/CCC/BIS/BSMI *For more details, please download the PDF or feel free to contact us.

  • Office supplies
  • Switching Power Supply

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18060 SAW24/SAW24D

18060 SAW24/SAW24D

The output capacity is 24W! The output voltage/current is 5V/9V/12V/15V/24V 3.0A max.

We would like to introduce the switching power supply '18060 SAW24/SAW24D' that we handle. The specifications of this product are PSE/UL/EU/UK/AU/KC/CCC/BIS/BSMI. The output voltage/current is 5V/9V/12V/15V/24V 3.0A max. Additionally, the output capacity is 24W, and the output type is cord type. Please feel free to contact us if you have any requests. 【Specifications】 ■ Output capacity: 24W ■ Output voltage/current: 5V/9V/12V/15V/24V 3.0A max ■ Output type: cord type ■ Standards: PSE/UL/EU/UK/AU/KC/CCC/BIS/BSMI *For more details, please download the PDF or feel free to contact us.

  • Office supplies
  • Switching Power Supply

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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
  • Switching Power Supply

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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
  • Switching Power Supply

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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
  • 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
  • Switching Power Supply

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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
  • Switching Power Supply

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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
  • Switching Power Supply

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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
  • Switching 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
  • Switching 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
  • 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
  • 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
  • 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
  • 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
  • Switching Power Supply

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