• Preferred Supplier

CUI Inc.

Image of CUI's Internal AC-DC

Internal AC-DC

Compact & efficient internal ac-dc power supplies from CUI offer board mount, chassis mount and DIN rail styles, with power ranging from 1 to 550 W.

Image of CUI's External AC-DC

External AC-DC

CUI’s diverse selection of wall plug-in and desktop adapters offer a full suite of safety approvals, high efficiency and 3 to 250 W of power.

Image of CUI's DC-DC


The 1000+ model range of CUI’s dc-dc converters offers economical low power solutions as well as robust high-power dc-dc modules, with power options from 1 to 600 W.

Tools and Support

Featured Videos

VOF-C/VOF-C-CNF | Datasheet Preview
符合 IEC 62368-1 的电源 | Datasheet Preview
IEC 62368-1準拠電源 | Datasheet Preview
IEC-62368-1-konforme Netzteile | Datasheet Preview
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Recent PTMs

5 minutes
Preparing for IEC 62368-1 Implementation
This presentation will provide background and basics of safety standard IEC 62368.
5 minutes
Smaller and Lighter Power Supplies Using Gallium Nitride
This presentation will discuss information regarding what GaN technology is and the features it provides when used in power supplies.
5 minutes
High Efficiency Switching DC Regulators
Available configurations, advantages versus linear regulators, key specifications, and possible applications for CUI's high efficiency switching DC regulators.
5 minutes
Low Power DC-DC Converters
Provides an economical and reliable means of converting and/or isolating DC rails within a distributed power system for a variety of applications.
5 minutes
Encapsulated AC/DC Power Supply Series
This presentation will provide an overview of CUI’s encapsulated AC/DC power supply family, including a summary of available models, features, and target applications.
10 minutes
Power Supply Safety Standards, Agencies and Marks
Reviewing the power supply international safety standards, the major agencies, and regional safety marks.
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About CUI Inc.

Since 1989, CUI has focused on improving the way power products are purchased now and, in the future, while also improving the experience for the design engineer. Along with unparalleled customer service and a variety of power resources, CUI also provides a diverse range of ac-dc power supplies, dc-dc converters, and power filters.