Murata Power Solutions has introduced a family of AC/DC Front End power supplies that deliver bulk power with the efficiency of up to 90.9% and power density up to 17.9W/in.³ The D1U4-W series is housed in a 1U low-profile package and is offered with output power of 1600 W (220VAC) or 1200W (110VAC) and main output voltages of 12V.

The D1U4-W series has active power factor correction and features active current sharing on its main output. 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.

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 355.6mm (L) x 101.6mm (W) x 41mm (H) – (14.0in. x 4.0in. x 1.6in.). If required, four units can be packaged together in an optional 19in. 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 0ºC to +50ºC.