Open Frame AC-DC Power Supplies range from 30-85 W.

Press Release Summary:

Accommodating universal input voltage of 90~277 Vac at 47–63 Hz, VOF Series includes 30, 50, 70, and 85 W versions offering single output options of 5, 12, 15, 18, 24, 28, and 48 Vdc. Units reach efficiencies up to 90% and include output voltage adjustability of ±5% via onboard potentiometer. Models VOF-30, VOF-50, and VOF-70 are rated for operation at 100% load from -20 to 50°C, derating to 50% load at 60°C, while VOF-85 operates at 100% load from -20 to 40°C, also derating to 50% load at 60°C.

Original Press Release:

Open Frame Power Supplies Ranging from 30~85 W are Efficient and Economical

Next Generation Ac-Dc Family Delivers Higher Efficiencies, Improved No-Load Performance and Boost in Power

TUALATIN, Ore. — CUI Inc today launched four new series of compact, open frame ac-dc power supplies, which range from 30 W to 85 W – The VOF Series.

The single-output supplies advance the company’s existing offering, delivering higher efficiencies, improved no-load performances, and a boost in power versus the previous generation.

The power supplies can accommodate a wide universal input voltage of 90~277 Vac at 47-63 Hz input, offering global compatibility for OEM manufacturers. It has been created to provide an industry leading combination of efficiency and competitive pricing, making the series ideally suited for use in ITE, industrial, and consumer electronics applications.

Available in 30, 50, 70, and 85 W versions, the power supplies offer output voltage options of 5, 12, 15, 18, 24, 28 and 48 Vdc depending on the series. All models include output voltage adjustability of +/-5% via an onboard potentiometer.

The VOF-30, VOF-50, and VOF-70 models are rated for operation at 100% load from -20°C to 50°C, derating to 50% load at 60°C. The VOF-85 operates at 100% load from -20°C to 40°C, also derating to 50% load at 60°C.

The new, compact open frame units measure just 101.6 x 50.75 x 33.6 mm (4.00 x 2.00 x 1.32 in), with the 30 W series shrinking this further to 90 x 50.8 x 21.1 mm (3.54 x 2.00 x 0.83 in).

Reaching efficiencies of up to 90% and no-load power consumption as low as 0.18 W, the VOF Series also carries UL/cUL and TUV 60950-1 safety certifications and are qualified for the CE mark, EN 55022 Class B, and FCC Class B EMI standards. Protections for over voltage, over current and short circuit are included as well as primary to secondary isolation voltage of 3 K Vac.

The new VOF series is available through distribution with prices starting at $18.43 per unit at 100 pieces. Please contact CUI for OEM pricing.


Availability: 8-10 weeks

Possible applications: ITE, telecommunication, industrial applications

Primary features: Compact, efficient, economical

Cost: Prices starting at $18.43 for 100 pieces through distribution

Media contacts


Maggie Lefor

+1 503 612 2300

About CUI Inc

CUI Inc is a technology company focused on the development and distribution of electronic components. At the leading edge of power supply design, the organization supports customers as they strive to improve the energy efficiency and environmental credentials of their application.  The company's power group is complemented by a portfolio of world-class board level components, consisting of interconnect, sound, motion control and thermal products.  An unwavering commitment to create collaborative partnerships with customers and a drive to see that their design project is a success has been a hallmark of CUI's sustained growth since its founding in 1989.   As a leader in the industry, CUI will continue to invest in the future through new technologies, talented employees, expanded manufacturing capabilities, and a growing global reach.

CUI Inc is a subsidiary of CUI Global, Inc., a publicly traded company whose common stock trades on the NASDAQ Exchange under the symbol CUI.

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