Murata has announced the PQU650 series of open-frame, 650W-rated AC-DC power supplies by Murata Power Solutions. The PQU650 series offers the highest power-density product on the market, with forced air- and convection-cooled ambient ratings. The power supplies offer a multitude of standard features including wide output voltage adjustment range, auxiliary power rails and a high transient capability, at a competitive price.

Measuring just 6″ x 4″ by 1 U high, the power supplies accept a universal AC input voltage range of 90 VAC to 264 VAC. Utilizing the latest LLC topology results in world-class efficiency levels of up to 95%, the series maintains a high 450W convection-cooled rating. This means there are no system fan requirements for applications up to 450W at ambient temperatures as high as 50°C, and with as little as 300 LFM forced air-cooling, the available output power rises to 650W at an ambient temperature of 50°C. A useful peak output ‘power boost’ rating of 800W is available for up to 30 seconds to allow initialization of inductive and capacitive loads.

Developed for industrial and medical applications, the PQU650 is an AC-DC, U-channel open-frame PSU certified to EN 60960 and IEC 60601 3rd Edition medical standards, meeting 2 x MOPP primary to secondary, and 1 x MOPP primary to chassis. An isolation figure of 4 KV AC primary to secondary, and 1500 VAC secondary to chassis are standard.

The series comprises ten models with output ratings from 12 to 54 V, and 12.1 to 54.2 A. Standard features include a power OK signal, PS on and remote sense, along with an auxiliary output of 5 V at 0.5 A, and a fan supply output of 12 V at 0.6 A. A safety cover is offered as an optional extra, and screw terminals or pluggable header variants are also available.

The PQU650 is ideally suited for industrial and medical applications where there are size constraints and for ‘no fan’ applications where noise and maintenance are critical, and also for use in transient load applications that require the PSU to provide high power for short durations. Other applications include, but are not limited to, communications, test equipment, visual signage, broadcast, ATE, stage lighting, PoE and datacoms.

PQU650 Series

Further editorial information from:
Amy Collins
Marketing Communications Manager
Murata Power Solutions
Tel: +1-508-964-5270

Contact details for publication:
Murata Power Solutions, Inc.,
129 Flanders Road
Westborough, MA 01581, USA
Tel: +1-508-339-3000

About Murata Power Solutions
Murata Power Solutions ( is headquartered in Westborough, Massachusetts, with over 1,300 employees worldwide. Murata Power Solutions designs, manufactures and distributes DC-DC ConverterAC-DC Power SupplyMagnetic and Digital Panel Meter product lines, and offers these products in custom, standard and modified-standard variations. Murata Power Solutions. products are typically used within electronic applications serving major global market sectors including telecommunications, computing and industrial controls.

Murata Power Solutions is a division of Murata Manufacturing Co., Ltd., a worldwide leader in the design, manufacture and sale of electronic components and power supply modules. Murata’s devices are found in a wide range of applications including consumer and automotive electronics, and wireless devices. The company has employees and manufacturing facilities throughout the world.

Follow Murata Power Solutions on Twitter: @murataps