![[UNIFIVE]AC/DC Power 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 to mass production, safety standards compliance, quality assurance, and after-sales service
For industrial equipmentAC/DC Power Adapter
High-quality AC/DC Power Adapter that withstands harsh environments and long hours of use
Trust UNIFIVE for medical power supplies
Power supplies that support the safety and reliability of medical equipment. We offer an extensive lineup of medical power supply series.
USB PD Compatible 20W AC/DC Power Adapter 2 Series, 6 Models Released
With multi-voltage outputs of 5V/9V/12V and the latest high-efficiency design, it delivers stable power supply suitable for embedded device applications.
TECHNO-FRONTIER 2026 Exhibition Report
From high-capacity 450W to ultra-compact GaN-equipped models, board-mounted switching power supplies and battery chargers are also on display
Founded in 1989 as an AC/DC Power Adapter and switching power supply manufacturer, UNIFIVE
provides high value-added Products that meet global needs while complying with international standards and advancing miniaturization, weight reduction, and enhanced 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 shipment of over 15,000 sample units per year, our development and manufacturing bases maintain a highly flexible production system.
Proven Global Track Record
UNIFIVE was established in Tokyo in 1989 and has since expanded its sales bases worldwide, building an extensive track record.
We have established a quality assurance system covering all processes, from market needs assessment 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.
Specifications can be fine-tuned and customized, so please feel free to contact us.
In addition to applications, you can narrow down the optimal Products using the following criteria.
You can check the connection terminals required for AC/DC Power Adapter 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 also flexibly accommodate detailed requests such as crimping special terminals, adjusting the length of the metal part of DC plugs, and changing cable lengths. We propose the optimal combination according to your application and device specifications.
UNIFIVE provides custom support for AC/DC Power Adapter and switching power supplies. We can accommodate various requirements such as safety standards, durability, noise countermeasures, and special connectors. From 3W to 1.5kW, we propose optimal power supply specifications according to your application.
Learn about UNIFIVE's commitment to quality. As a manufacturer of AC/DC Power Adapter and switching power supplies, we have established a thorough quality assurance system covering every stage, from market needs assessment to design, development, mass production, and post-shipment maintenance activities.
UNIFIVE flexibly accommodates everything from modifications of existing Products to complete full custom solutions according to customer needs.
| Semi-custom solutions utilizing existing molds and designs with proven development results enable short lead times, while full custom development from scratch supports diverse 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. |
