D1U4-W-1200-12-Hx Series
www.murata-ps.com
AC/DC Front End Power Supply
PRODUCT OVERVIEW
The D1U4-W-1200-12-Hx is a 1200 Watt, power-factor-corrected (PFC) front-end power supply for hot-swapping
redundant systems. The main output is 12V with a standby output of either 5V or 3.3V. Packaged in a 1U low-profile
enclosure, 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 autorecover from
overcurrent and overtemperature faults. Status information is provided with front panel LEDs, logic signals and I2C
management interface. Four units can be packaged into an optional 19" 1U power shelf to provide up to 4.8kW of
power.
ORDERING GUIDE
Power Output
High Line AC
Power Output
Low Line AC
Standby
Output
FEATURES
Part Number
Main Output
Airflow
ꢀ
1200W (220Vac), 900W (110Vac)
D1U4-W-1200-12-HC2C
D1U4-W-1200-12-HA2C
D1U4-W-1200-12-HC1C
D1U4-W-1200-12-HA1C
1200W
1200W
1200W
1200W
900W
900W
900W
900W
12V
12V
12V
12V
3.3V
5V
Back to front
Back to front
Front to back
Front to back
Output power
ꢀ
12V Main output,
3.3V
5V
3.3V or 5V standby output of 20W
ꢀ
1U height: 4.0" x 14.0" x 1.6"
INPUT CHARACTERISTICS
Parameter
Input Voltage Operating Range
Input Frequency
ꢀ
13.4 Watts per cubic inch density
Conditions
Min.
90
47
Typ.
115/230
50/60
Max.
264
63
Units
Vac
Hz
ꢀ
N+1 redundancy capable,
including hot-docking
Turn-on Input Voltage
Turn-off Input Voltage
Ramp up
Ramp down
Low Line AC 90Vac
High Line AC 180Vac
Cold start between 0-1msec
Output load >90%
78.5
70.5
86.5
78
15
10
100
ꢀ
Active current sharing on main output
Vac
ꢀ
Overvoltage, overcurrent,
overtemperature protection
Maximum Input Current
Inrush Current
Arms
Apk
ꢀ
Internal cooling fans
95%
75%
Power Factor
ꢀ
I²C Bus Interface with status indicators
Output load >50%
ꢀ
Optional 1U x 19" power-shelf
OUTPUT VOLTAGE CHARACTERISTICS
ꢀ
RoHS compliant
Output
Parameter
Voltage
Conditions
Min.
Typ.
Max.
Units
Vdc
Voltage Set Point Accuracy
Line and Load Regulation
12.12
11.75
0
12.48
120
98.3
12V
3.3Vsb
5Vsb
Ripple Voltage & Noise1
Output Current
Load Capacitance
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise1
Operating Range
20MHz Bandwidth
mV p-p
A
40000
µF
3.3
5
Vdc
3.2
0
3.4
33
6
20MHz Bandwidth
20MHz Bandwidth
mV p-p
A
µF
Load Capacitance
1530
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise1
Operating Range
Vdc
4.85
0
5.15
50
4
mV p-p
A
Load Capacitance
1530
µF
1 Ripple and noise are measured with 0.1 uF of ceramic capacitance and 2 x 270 uF of OSCON capacitance on each
of the power supply outputs. A short coaxial cable with 50ohm scope termination is used. See Ripple Test Setup
diagram.
CB
Test Certificate
and Test Report
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
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