1.2 kW front-end power supply modules fit 1U shelf

August 27, 2015 // By Graham Prophet
Murata Power Solutions’ D1U54-D-1200 series of DC-input front end power supply modules are 1000VRMS isolated power supplies that provides 12Vdc output at 1200W, with a standby voltage at up to 20W.

With power density of 28 Watts per cubic inch, the 54.5mm width and 1U height format minimises space to maximise user rear panel area. This configuration is popular with 1U and 2U applications in servers, storage equipment, data centres, and telecommunications network equipment.

D1U54-D-1200 Series DC-input models accommodate an operating input voltage range of -40Vdc to -72Vdc. This product series complements the AC-input D1U54P-W-1200 models and allows plug and play compatibility between products.

The hot swap enabled D1U54-D-1200 Series has integral MOSFET ORing in conjunction with active current sharing of the main output. These features allow up to eight units to operate in parallel, providing the capability to drive larger loads or to build in N+N redundancy of supplies.

With a PMBus compliant digital interface, the supply can be monitored, managed and controlled using industry standard PMBus protocol commands. Safety features of the D1U54-D-1200 Series include over-voltage, over-current and over-temperature protection.

Model selection in the D1U54-D-1200 Series includes choice of 3.3Vdc or 5.0Vdc standby outputs as well as forward or reverse airflow.

Murata Electronics Europe; www.murata.com