AC/DC Switching Power Supply has 9.2 W/in.³ power density.

Press Release Summary:




Supplied in 4 x 7 x 1.59 in. package, CEF400-112C series provides 400 W of continuous power in 1U form-factor without requiring additional system airflow. There is one always-on, 5 V auxiliary output in addition to main 12 V output, and I²C interface allows monitoring of operating status. In addition to active PFC, features include N+1 redundancy with integral OR-ing FET and current sharing, Class B conducted EMI, integral fan, and on-board monitoring/control.



Original Press Release:



New Product - CEF400 AC/DC Power Supply



AC/DC power supply provides 400W of continuous power in 1U form-factor without need for additional system airflow

True 1U compatible package is 1.59"H
4" x 7" footprint delivers 9.2W/in3 power density
Integral fan
I2C interface allows monitoring of operating status
Active power-factor correction to EN61000-3-2
N+1 redundancy with integral OR-ing FET and current sharing
Class B conducted EMI

Murata Power Solutions has introduced its CEF400-112C series, a new 400W, single output AC/DC switching power supply for distributed power architecture (DPA) designs requiring reliable 12V bulk power.

The IEC EN61000-3-2 compliant power supply accepts a universal input voltage range of 85 to 264VAC or 120 to 300VDC. In addition to its main 12V output, the CEF400-112C also features an 'always on' 5V auxiliary output for applications that require standby operation. A built-in OR-ing FET enables current sharing for N+1 redundancy and fault-tolerant applications.

Why would I specify the CEF400?

The 12V output was developed to support systems using a 12V DPA
The active power-factor-corrected (PFC) power supply features an integral fan enabling it to deliver 400W of continuous power in a low-profile 1U package without the need for additional external airflow
Compact high power density design
Important monitoring and control features such as AC power fail, DC power good, remote on/off, remote sense, and droop current share
Status and control can alternately be accomplished through the I/O pins or the integral I2C interface
Murata Power Solutions offers many 12V POL products to complement the CEF400-112C in 12V DPA applications
Industry-standard 4"x7" footprint

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