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Murata Intros AC/DC Power Supplies
Front-end power supply.
Mansfield, MA — Murata Power Solutions has introduced a family of AC/DC front end power supplies — called the D1U4-W series — that deliver bulk power with high efficiency of up to 90.9 percent and high power density up to 17.9W/in.3. The new units are suitable for use in servers, network equipment and other distributed power architecture applications.

The power supplies are housed in a 1U low-profile package and are offered with output power of 1600 W (220VAC) or 1200W (110VAC) and main output voltages of 12V.

The power supplies have active power factor correction and active current sharing on their main outputs. Integrated OR-ing FETs support N+1 operation including hot docking. In addition to the main output, standby outputs of either 3.3V or 5V that give up to 20W of standby power are provided to support system housekeeping and monitoring requirements.

The highly efficient electrical and thermal design uses proven topology and components and includes integral cooling fans to further support highly reliable operation; the D1U4-W series is an extension of the D1U product family that has a demonstrated field reliability of 6.8 million hours.

Protection features include auto-recovery from both over-current and over-temperature faults. Status information is provided via front panel LEDs, logic signals and an I2C management interface. Overall dimensions of the D1U4-W Front End power supply are 355.6 x 101.6 x 41mm (14.0 x 4.0 x 1.6-in.). If required, four units can be packaged together in an optional 19-in. power shelf (S1U-4X) to provide up to 4.8kW of power. All models are fully RoHS compliant and are EMC class A rated. Operating temperature range is 0 to +50°C.

Contact: Murata Power Solutions, Inc., 11 Cabot Blvd., Mansfield, MA 02048-1151 800-233-2765 or 508-339-3000 fax: 508-339-6356 E-mail: websales@cd4power.com Web:
http://www.cd4power.com or http://www.murata-ps.com


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