DC-DC Converters feature EMC shielding and 2:1 input range.

Press Release Summary:

Housed in 2 x 1 in. package, 50 W Series PQA50-D incorporates 6-sided metal shielding and provides efficiency up to 93%. Single-output modules are available with 18~36 Vdc or 36~75 Vdc input voltage and deliver output voltages of 3.3, 5, 12, 15, or 24 Vdc. Operating from -40 to 85°C, converters feature 1,500 Vdc input-to-output isolation, load regulation of ±1% max from 10–100% load, and line regulation of ±0.5% max. Units are suited for IT equipment, telecommunications, and industrial systems.

Original Press Release:

Ultra-Compact 50 W Dc-Dc Converter Cuts Board Space and Cost In Telecommunications, Industrial and ITE Applications

2 x 1” package equipped with EMC shielding, precise voltage regulation and high efficiency figures across the entire input range

TUALATIN, Ore. – CUI Inc has announced one of the industries smallest 50 W dc-dc converters, the PQA50-D. The series’ feature set makes it ideally suited for IT equipment, telecom and industrial systems.

The dc-dc converter series is a low cost, high performance family with a 2 x 1 inch (50.8 x 25.4 mm) footprint – an industry standard size for less powerful devices. It incorporates six sided metal shielding for improved EMC performance and efficiency up to 93%.

The converters maintain high efficiency figures across the entire input voltage range - including under light loads, making the PQA50-D series ideal for designs where minimizing power consumption at various operating conditions is a priority.

The single output isolated dc-dc converter modules feature a 2:1 input range and are available with an 18~36 Vdc or 36~75 Vdc input voltage range and 3.3, 5, 12, 15 or 24 Vdc output voltages.

The series has 1500 Vdc input-to-output isolation and protections for output over voltage, short circuit, over load, and input under voltage.

The series offers precise voltage regulation, featuring load regulation of +/- 1% max. from 10% to 100% load and line regulation of +/- 0.5% max. Additional features of the new PQA50-D series include an operating temperature range of -40~85 °C, remote on/off control, and voltage adjustability of +/- 10%.

The PQA50-D series is now available through distribution with prices starting at $85.12 for 100 pieces OEM pricing is available upon request.


Product name: PQA50-D series

Availability: 8-10 weeks

Possible users: ITE, telecommunication, industrial market

Primary features: 2”x 1” ultra compact package, six-sided shielded case, -40~85 °C operating temp range

Cost: Prices start at $85.12 for 100pcs through distribution.

Relevant links

CUI dc-dc converters page

PQA50-D series web page

PQA50-D datasheet

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.

Tina O'Mahoney


T: +44 (0) 1225 470 000

E: tina.omahoney@publitek.com

W: www.publitek.com

18 Brock Street, Bath, BA1 2LW, UK

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