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D1U4-W-1200-12-Hx Series

AC/DC Front End Power Supply

D1U4-1200-12-Hx.A03 Page 1 of 5

For full details go to

www.murata-ps.com/rohs

　

SELECTION GUIDE

Part Number

Power Output

High Line AC

Power Output

Low Line AC

Main Output

Standby

Output

Airflow

D1U4-W-1200-12-HC2C

1200W

900W

12V

3.3V

Back to front

D1U4-W-1200-12-HA2C

1200W

900W

12V

5V

Back to front

D1U4-W-1200-12-HC1C

1200W

900W

12V

3.3V

Front to back

D1U4-W-1200-12-HA1C

1200W

900W

12V

5V

Front to back

INPUT CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Input Voltage Operating Range

Low Line AC

90

140

Vac

High Line AC

180

264

Input Frequency

47

50/60

63

Hz

Turn-on Input Voltage

Ramp up

78.5

86.5

Vac

Turn-off Input Voltage

Ramp down

70.5

78

Maximum Input Current

Low Line AC 90Vac

15

Arms

High Line AC 180Vac

10

Inrush Current

Cold start between 0-1msec

100

Apk

Power Factor

Output load >90%

95%

Output load >50%

75%

OUTPUT VOLTAGE CHARACTERISTICS

Output

Voltage

Parameter

Conditions

Min.

Typ.

Max.

Units

12V

Voltage Set Point Accuracy

12.12

Vdc

Line and Load Regulation

11.75

12.48

20MHz Bandwidth

120

mV p-p

Output Current

0

98.3

A

Load Capacitance

40000

μF

3.3Vsb

Voltage Set Point Accuracy

3.3

Vdc

Line and Load Regulation

3.2

3.4

20MHz Bandwidth

33

mV p-p

Operating Range

0

6

A

Load Capacitance

1530

μF

5Vsb

Voltage Set Point Accuracy

5

Vdc

Line and Load Regulation

4.85

5.15

20MHz Bandwidth

50

mV p-p

Operating Range

0

4

A

Load Capacitance

1530

μF

FEATURES

RoHS compliant

1200W (220Vac), 900W (110Vac)

Output power

12V Main output,

3.3V or 5V standby output

1U sized; dimensions 14.0” x 4.0” x 1.6”

13.4 Watts per cubic inch density

N+1 redundancy capable,

including hot-docking

Active current sharing on main output

Over-voltage, over-current,

over-temperature protection

Internal cooling fans

I²C Bus Interface with status indicators

Optional 1U x 19” power-shelf

PRODUCT OVERVIEW

The D1U4-W-1200 is a 1200 Watt, power-factor-corrected (PFC) front-end power supply for hot-

swapping redundant systems. The main output is 12V and standby output of either 5V or 3.3V. Packaged

in 1U low profile, it is designed to deliver reliable bulk power to servers, workstations, storage systems

or any 12V distributed power architecture systems requiring high power density. The highly efficient

electrical and thermal design with internal cooling fans supports reliable operation conditions. The

D1U4-W-1200 is designed to auto-recover from over-current and over-temperature faults. Status

can be packaged into an optional 19” 1U power shelf to provide up to 3.6kW of power.

of the power supply outputs. The output noise requirements apply over a 0 Hz to 20 MHz bandwidth. A short coaxial

cable with 50ohm scope termination is used. See Ripple Test Setup diagram.