- CUI is an electronic components manufacturer with an unwavering commitment to design engineers. The company specializes in a diverse range of product technologies, including power, interconnect, audio, motion control, and thermal management.

Power Solutions

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As a leader in the power supply industry, CUI energizes your ideas with a diverse range of leading ac-dc power supplies and dc-dc converters. Learn More

Thermal Management Solutions

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Defeat heat in your application with CUI’s dc fans, blowers, heat sinks, and Peltier devices—all aimed at enhancing system longevity and performance. Learn More

Audio Solutions

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CUI’s buzzers, speakers and microphones are sound solutions for any design, offering a variety of options for maximum flexibility. Learn More

Featured Products

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Interconnect Solutions

Comprised of power, audio, DIN, RCA and USB connectors, CUI offers quality connections for a range of applications, simplifying the design process. Learn More

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Motion Solutions

CUI is revolutionizing encoder technology with its line of rotary encoders and stepper servo motors, delivering highly reliable solutions in a range of configurations. Learn More

Product Listing View All

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Newest Products View All (143)

DIN Rail AC-DC Power Supplies

CUI's PDRB and PDRC series of DIN rail AC-DC power supplies are available in compact, encapsulated packages, offering 3.3 VDC to 48 VDC. Learn More

High-Density Medical AC-DC Power Supplies

CUI's high-density medical AC-DC power supplies are ideal for medical diagnostic equipment, medical monitoring devices, and dental applications. Learn More

External Medical Power Supplies

CUI's line of 6 W to 250 W medical desktop and wall plug adapters are 60601-1 4th edition certified with DC cord and USB inlet options for medical, dental, and home healthcare applications. Learn More

36 W Medical Desktop Power Adapters

CUI's SDM36-U/SDM36-UD 36 W medical desktop power adapters are ideal solutions for a variety of medical, dental and home healthcare equipment. Learn More

CMEJ Series Electret Condenser Microphones

CUI's CMEJ series microphones are highly economical and feature signal-to-noise ratios ranging from 60 dBA to 70 dBA. Learn More

Microphone Development Kit

CUI’s microphone development kits each consist of four detachable evaluation circuits. Learn More

Recent PTMs View All (24)

Capacitive Absolute Rotary Encoders Updated: 2019-07-16

CUI's AMT series encoders utilize capacitive technology that is flexible and offers numerous mounting options in one encoder.

Duration: 15 minutes
High Efficiency Switching DC Regulators Updated: 2019-06-25

Available configurations, advantages versus linear regulators, key specifications, and possible applications for CUI's high efficiency switching DC regulators.

Duration: 5 minutes
Low Power DC-DC Converters Updated: 2019-06-25

Provides an economical and reliable means of converting and/or isolating DC rails within a distributed power system for a variety of applications.

Duration: 5 minutes
Encapsulated AC/DC Power Supply Series Updated: 2019-06-24

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.

Duration: 5 minutes

Featured Videos View All (29)

AMT13 and AMT33 Mounting Instructions

This video will show the steps of properly mounting and adjust the AMT13 and AMT33 Encoder

CUI CMEJ Electret Condenser Microphones | Digi-Key Daily

CUI’s ECM microphones contain a permanent charge, eliminating the need for an external polarizing voltage. The models are housed in compact packages as small as 3 mm in diameter with depths as low as 1 mm.

CUI Stepper Servo Motors | Digi-Key Daily

NEMA-AMT112S series of stepper servo motors from CUI combines an AMT11 incremental encoder and compact stepper motor into one highly reliable, convenient package.

CUI IP-Rated Audio Solutions | Digi-Key Daily

CUI's waterproof speakers, microphones, and buzzers offer ingress protection (IP) ratings up to IP68, diameters as small as 4 mm, and depths as low as 1.5 mm.

Tools & Support

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IEC 60601-1 Medical Design Standards for Power Supplies

With the transition to IEC 60601-1-2 4th edition, designers of medical equipment must consider a range of new requirements. In this paper, CUI takes a look at the evolution of IEC 60601-1 and its implications for engineers specifying power supplies for medical devices.Learn More

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What is the Most Effective Way to Commutate a BLDC Motor?

Learn about the different methods and tradeoffs for commutating BLDC motors and how CUI's AMT commutation encoder series is providing a valuable solution to the quickly-growing BLDC market. Learn More

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Efficiency Standards for External Power Supplies

This paper examines the evolution of efficiency standards and provides a summary of the current global legislation impacting external ac-dc power supplies. Learn More

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arcTEC™ Structure

This paper takes a look at CUI's arcTEC™ structure, found in its line of high performance Peltier modules, versus general Peltier module construction. Learn how the arcTEC structure provides improved performance and reliability, outperforming conventional thermoelectric cooler design. Learn More

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IEC 62368-1 An Introduction to the New Safety Standard for ICT and AV Equipment

The established safety standards for ICT equipment (60950-1) and AV equipment (60065) are to be phased out in favor of a single standard, 62368-1, in North America and the EU. The new standard introduces a different, hazard-based philosophy to product testing. What does it mean for product certification, and how can OEMs best manage the transition? Learn More

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omniCOOL™ System

Discover how CUI's omniCOOL™ system, found in its line of sleeve bearing axial fans, bridges the gap between traditional sleeve and ball bearing designs, thanks to dramatically reduced fan friction, wobble, and noise, in addition to improved fan life and performance. Learn More

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