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D1U3CS-W-850-12-HxxC Series
81mm 1U Front End AC-DC Power Supply Converter
PRODUCT OVERVIEW
The D1U3CS-W-850-12-HxxC series are 80 PLUS Gold ef?ciency 850 watt, power factor corrected front
end supplies with a 12V main output and a 3.3V (20W) standby. They have active current sharing and up to
4 supplies may be operated in parallel. The supplies may be hot plugged, they recover from overtempera-
ture faults, and have logic and PMBus status signals. Their low pro?le 1U package and >15W/cubic inch
power density make them ideal for delivering reliable, ef?cient power to servers, workstations, storage
systems and other 12V distributed power systems.
ORDERING GUIDE
FEATURES
850W output power
80 PLUS ? Gold ef?ciency
12V main output
Part Number
D1U3CS-W-850-12-HC4C
D1U3CS-W-850-12-HC3C
Power Output
850W
Main
Output
12V
Standby Output 1
3.3V
Air?ow
Back to front
Front to back
3.3V or 5V standby output of 20W
INPUT CHARACTERISTICS
1U height: 3.20" x 11.00" x 1.57"
15.4 Watts per cubic inch density
N+1 redundancy capable,
including hot plugging (up to 4 in parallel)
Active current sharing on 12V main output;
ORing FET
Overvoltage, overcurrent,
overtemperature protection
Internal cooling fan (variable speed)
Parameter
Voltage Operating Range
Frequency
Turn-on Voltage
Turn-off Voltage
Maximum Current
Inrush Current
Power Factor
Ef?ciency (230Vac) excluding fan
load
Conditions
Ramp up
Ramp down
850W, 100Vac
Cold start between 0 to 200msec
At 230Vac, full load
20% load
50% load
100% load
Min.
90
47
88
92
88
Nom.
115/230
50/60
73
0.98
89
93.5
93
Max.
264
63
90
10
25
Units
Vac
Hz
Vac
Arms
Apk
%
Parameter
PMBus? / I2C interface
RoHS compliant
OUTPUT VOLTAGE CHARACTERISTICS
Output
Voltage
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise 2
12V
Conditions
50% load
20MHz Bandwidth
Min.
11.97
11.4
Typ.
12.0
Max.
12.02
12.6
120
Units
Vdc
mV p-p
Output Current
Load Capacitance
0
69.2
10000
A
μF
3.3VSB
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise 2
Output Current
50% load
20MHz Bandwidth
3.28
3.13
0
3.3
3.32
3.46
50
6
Vdc
mV p-p
A
Load Capacitance
350
μF
1
2
For 5vSB, contact Murata Sales for availablity.
Ripple and noise are measured with 0.1 μF of ceramic capacitance and 10 μF of tantalum capacitance on each of the power supply
outputs. A short coaxial cable with 50Ω scope termination is used.
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Available now at
www.murata-ps.com/en/3d/acdc.html
　
Test Certi ? cate
CB
and Test Report
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
D1U3CS-W-850-12-HxxC.A03 Page 1 of 6
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