![[Unifive] AC Adapter & Switching Power Supply Manufacturer](common/img/header-logo.svg){kind=logo}
We are Unifive, a specialized manufacturer of AC/DC adapters & switching power supplies.
Comprehensive support from design and mass production to safety standards compliance, quality assurance, and after-sales service
AC adapter for industrial equipment
High-quality AC adapter that withstands harsh environments and long hours of use
Leave medical power supplies to Unifive as well
Power supplies that support the safety and reliability of medical equipment. We offer a wide lineup of medical power supply series.
Announcement of Exhibiting at "Manufacturing World 2026 [Tokyo] MEDIX Healthcare & Medical Device Development Expo"
Dates: July 1 (Wed) - July 3 (Fri), 2026 10:00-17:00
Venue: Tokyo Big Sight, East Exhibition Hall
Booth Number: E8-21
Announcement of Exhibiting at "TECHNO-FRONTIER 2026 Power Supply System Exhibition"
Exhibition Period: July 15 (Wed) - July 17 (Fri), 2026 10:00-17:00
Venue: Tokyo Big Sight West Exhibition Hall West 1 Hall
Booth Number: 1-AA04
Founded in 1989 as a manufacturer of AC adapters and switching power supplies, UNIFIVE has been providing high value-added products that meet global needs while complying with international standards and advancing in compactness, light weight, and high functionality.
Flexible Custom Support
We accurately understand the diversifying needs of markets and customers. We flexibly accommodate custom orders starting from small lots.
With the development of approximately 1,500 new models annually and the shipment of over 15,000 samples per year, our development and manufacturing sites have established a flexible production system.
Proven Track Record Across the Globe
Since its establishment in Tokyo in 1989, UNIFIVE has expanded its sales bases worldwide and built an extensive track record.
We have established a comprehensive quality assurance system covering all processes, from gathering market needs to design, development, mass production, quality inspection, and maintenance services.
You can search by the application of the equipment in which the product will be used.
We can fine-tune specifications and provide customization, so please feel free to contact us.
In addition to application, you can narrow down the optimal product using the following conditions.
You can check the connection terminals required for AC adapters and power supply products. We offer a lineup of over 300 types, including S-type straight, L-type right angle, EIAJ, USB Type-C, and Micro USB. We can also flexibly accommodate detailed requests such as crimping special terminals, adjusting the metal length of DC plugs, and changing cable lengths. We propose the optimal combination according to your application and equipment specifications.
UNIFIVE provides custom solutions for AC adapters and switching power supplies. We can meet diverse requirements including safety standards, durability, noise countermeasures, and special connectors. From 3W to 1.5kW, we propose the optimal power supply specifications according to your application.
Learn about UNIFIVE's commitment to quality. As a manufacturer of AC adapters and switching power supplies, we have established a thorough quality assurance system covering all processes, from gathering market needs to design, development, mass production, and post-shipment maintenance activities.
At UNIFIVE, we flexibly respond to customer needs, from modifications of existing products to complete full custom solutions.
| Semi-custom solutions utilizing existing molds and designs with proven development results enable short lead times, while full custom development from scratch supports a wide range of fields including medical, industrial, information equipment, and IoT. Here we introduce examples of custom power supplies we have developed for various industries and applications. |
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Company Information UNIFIVE CO., LTD. provides an introduction to the company. This page includes information about our head office, our own factories, in-house development bases, and overseas bases, as well as our initiatives and social responsibility, along with our history, agents and retailers handling our Products, major business partners, and recruitment information. |
