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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 efficiency 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 overtemperature faults, and have logic and PMBus status signals. Their low profile 1U package and >15W/cubic inch
power density make them ideal for delivering reliable, efficient power to servers, workstations, storage
systems and other 12V distributed power systems.
ORDERING GUIDE
FEATURES
Part Number
„ 850W output power
„ 80 PLUS® Gold efficiency
Power Output
Main
Output
Standby Output1
Airflow
850W
12V
3.3V
Back to front
Front to back
D1U3CS-W-850-12-HC4C
D1U3CS-W-850-12-HC3C
„ 12V main output
„ 3.3V or 5V standby output of 20W
INPUT CHARACTERISTICS
„ 1U height: 3.20" x 11.00" x 1.57"
Parameter
Conditions
Voltage Operating Range
Frequency
Turn-on Voltage
Turn-off Voltage
Maximum Current
Inrush Current
Power Factor
„ 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)
Efficiency (230Vac) excluding fan
load
Ramp up
Ramp down
850W, 100Vac
Cold start between 0 to 200msec
At 230Vac, full load
20% load
50% load
100% load
Min.
Nom.
Max.
Units
90
47
115/230
50/60
264
63
90
Vac
Hz
10
25
Arms
Apk
73
88
92
88
0.98
89
93.5
93
Vac
%
OUTPUT VOLTAGE CHARACTERISTICS
„ PMBus™ / I²C interface
Output
Voltage
„ RoHS compliant
12V
3.3VSB
1
2
Parameter
Conditions
Min.
Typ.
Max.
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise2
Output Current
Load Capacitance
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise2
Output Current
Load Capacitance
50% load
11.97
11.4
12.0
12.02
12.6
120
69.2
10000
3.32
3.46
50
6
350
20MHz Bandwidth
0
50% load
3.28
3.13
20MHz Bandwidth
0
3.3
Units
Vdc
mV p-p
A
μF
Vdc
mV p-p
A
μF
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
CB
Test Certificate
and Test Report
For full details go to
www.murata-ps.com/rohs
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D1U3CS-W-850-12-HxxC.A03 Page 1 of 6
D1U3CS-W-850-12-HxxC Series
81mm 1U Front End AC-DC Power Supply Converter
OUTPUT CHARACTERISTICS
Parameter
Output Rise Monotonicity
Start-up Time
Transient Response
Conditions
No voltage excursion
AC ramp up
12V, 50-100% load step, 0.1A/μs di/dt
5VSB, 50-100% load step, 0.1A/μs di/dt
3.3VSB, 50-100% load step, 0.1A/μs di/dt
Current sharing accuracy (up to 4 in parallel)
At 100% load
Hot Swap Transients
Hold-up Time
All outputs remain in regulation
At full load
Min.
20
Typ.
Max.
Units
1.5
150
TBD
165
3
s
2.5
±7
%
5
%
ms
mV
25
ENVIRONMENTAL CHARACTERISTICS
Parameter
Storage Temperature Range
Operating Temperature Range
Operating Humidity
Storage Humidity
Altitude (without derating at 45°C)
Shock
Sinusoidal Vibration
MTBF
Acoustic
Conditions
Noncondensing
30G non operating
0.5G, 5 – 500 Hz
Per Telcordia SR-322 M1C1 @40°C
Min.
-40
-10
5
5
3000
Typ.
Max.
85
55
90
95
Units
°C
%
m
500K
55
Safety Approvals
CSA/UL 60950-1-07-2nd Ed.
IEC 60950-1:2005 (2nd Edition)
EN 60950-1:2006 +A11
CE Marking per LVD DIRECTIVE 2006/95/EC
Input Fuse
Power Supply has internal 15A/250V fast blow fuse on the AC line input
Switching Frequency
90KHz for Boost PFC Converter
130KHz for Main Output Converter
Weight
3.15lbs (1.43kg)
hrs
dB LpAm
PROTECTION CHARACTERISTICS
Output
Voltage
12V
3.3VSB
Parameter
Conditions
Overtemperature (intake)
Overvoltage
Overcurrent
Overvoltage
Overcurrent
Autorestart
Latching
Latching
Latching
Autorecovery
Min.
Typ.
Max.
65
13.2
14.4
81
3.6
4.0
7.4
Units
°C
V
A
V
A
ISOLATION CHARACTERISTICS
Parameter
Insulation Safety Rating / Test Voltage
Isolation
Conditions
Input to Output - Reinforced
Input to Chassis - Basic
Output to Chassis
Min.
3000
1500
500
Typ.
Max.
Units
Vrms
Vrms
Vdc
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D1U3CS-W-850-12-HxxC.A03 Page 2 of 6
D1U3CS-W-850-12-HxxC Series
81mm 1U Front End AC-DC Power Supply Converter
EMISSIONS AND IMMUNITY
Characteristic
Input Current Harmonics
Voltage Fluctuation and Flicker
Conducted Emissions
ESD Immunity
Radiated Field Immunity
Electrical Fast Transients/Burst Immunity
Surge Immunity
RF Conducted Immunity
Magnetic Field Immunity
Standard
IEC/EN 61000-3-2
IEC/EN 61000-3-3
FCC 47 CFR Part 15/CISPR 22/EN55022
IEC/EN 61000-4-2
IEC/EN 61000-4-3
IEC/EN 61000-4-4
IEC/EN 61000-4-5
IEC/EN 61000-4-6
IEC/EN 61000-4-8
Compliance
Complies
Complies
Class A, 6dB margin
Level 3 criteria B
Level 3 criteria B
Level 3 criteria B
Level 4 criteria B
Level 3 criteria A
3 A/m criteria B
Voltage dips, interruptions
IEC/EN 61000-4-11
230Vin, 100% load, Phase 0°, Dip 100% Duration 10ms (A)
230Vin, 50% load, Phase 0°, Dip 100% Duration 20ms (VSB:A, V1:A)
230Vin, 100% load, Phase 0°, Dip 100% Duration > 20ms (VSB, V1:B)
All specifications are at 25°C ambient, unless otherwise stated.
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D1U3CS-W-850-12-HxxC.A03 Page 3 of 6
D1U3CS-W-850-12-HxxC Series
81mm 1U Front End AC-DC Power Supply Converter
OUTPUT CONNECTOR AND SIGNAL SPECIFICATION
DC and Signal Connector: FCI 51721-10002406AA
D1
D2
D3
D4
D5
D6
C1
C2
C3
C4
C5
C6
B1
B2
B3
B4
B5
B6
A1
A2
A3
A4
A5
A6
PB1
Pin Assignment
PB1, PB2, PB3
PB4, PB5, PB6
A1
A2
A3
A4
A5, B5, C5, D5
A6, B6, C6, D6
B1
B2
B3
Signal Name
+12V GND
+12V OUT
PS_ON
+12VRS_RETURN
TEMP_OK
PS_SEATED
+VSB
+VSB GND
AC OK
+12VRS
+12V_ISHARE
B4
PS_INHIBIT/PS_KILL
C1
C2
C3
C4
D1
D2
D3
D4
SDA
SCL
PWR_GD
FAN_FAIL
A0
A1
S_INT
NO CONNECTION
PB2
PB3
PB4
PB5
PB6
Description
Main output voltage, return
Main output voltage
Power supply “ON”
Main output remote sense, return
Temperature “OK” signal output
Power supply is plugged into the system
Standby output voltage
Standby output voltage, return
Input AC voltage “OK” signal output
Main output remote sense
Main output active load sharing bus
Amps per pin
30
30
N/A
N/A
N/A
N/A
2.0
2.0
N/A
N/A
N/A
Floating pin will turn off the power supply (shorter pin, lastmake and first-break contact for hot plugging) . This signal
overrides PS_ON in disabling the main output.
I2C Data line
I2C Clock line
Power good
Fan failure
Address line least significant bit
Address line most significant bit
System interrupt
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
MATING CONNECTORS
Mating Connector
FCI
Press Fit
Straight
TBD
Right Angle
51761-10002406AA
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D1U3CS-W-850-12-HxxC.A03 Page 4 of 6
D1U3CS-W-850-12-HxxC Series
81mm 1U Front End AC-DC Power Supply Converter
WIRING DIAGRAM FOR OUTPUT
Dotted lines show optional remote sense connections.
Optional remote sense lines can be attached to a load that is a distance
away from the power supply to improve regulation at the load.
+12VRS (Main Output Remote Sense)
B2
PB4-6
+12VRS (Main Output Remote Sense)
+12V OUT
+12V OUT
PB4-6
B2
12V load
D1U3CS
PB1-3
A2
B3
A5,B5,C5,D5
A1
A6,B6,C6,D6
B4
D1U3CS
+12V GND
+12V GND
+12VRS_RETURN
+12V_ISHARE
A2
+12V_ISHARE
B3
PS_ON_L
PS_ON_L
+VSB GND
+12VRS_RETURN
+VSB
+VSB
PB1-3
A5,B5,C5,D5
A1
+VSB load
FET, BJT, wire
or switch (debounced )
to turn on +12V main output
+VSB GND A6,B6,C6,D6
PS_INHIBIT/PS_KILL
PS_INHIBIT/PS_KILL
B4
CURRENT SHARING NOTES
12V Output: Current sharing is achieved using the active current share method. (See wiring diagram for connection details.)
Current sharing can be achieved with or without remote sense connected to the common load.
+VSB outputs can be tied together for redundancy but total combined output power must not exceed 20W. The +VSB output has internal ORing MOSFET for additional redundancy / internal short protection.
The current share pin B3 is a connection between the two units. It is input and/or output as the voltage on the line controls the current share. A power supply will
respond to a change in this voltage but a power supply can also change the voltage depending on the load drawn from it. On a single unit this would read 8V at
100% load. For two units sharing load then this should read 4V for perfect current sharing.
Up to 4 units can be paralleled together. Please consult your Murata sales representative if operation with more than 4 units in parallel is needed.
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D1U3CS-W-850-12-HxxC.A03 Page 5 of 6
D1U3CS-W-850-12-HxxC Series
81mm 1U Front End AC-DC Power Supply Converter
16.50
0.650
MECHANICAL DIMENSIONS
75.00
2.953
Airflow Back to Front
7.04 ±0.80
0.277 ±0.031
39.90 ±0.50
1.571 ±0.020
75.00
2.953
19.50
0.768
83.80 ±0.70
3.299 ±0.028
7.0
0.276
275.50 ±0.70
10.846 ±0.028
279.40 ±0.50
11.000 ±0.020
22.80 ±0.60
0.898 ±0.024
16.20 ±0.60
0.638 ±0.024
75.00
2.953
Power Supply
BACK
17.65
0.695
40.65
1.600
63.65
2.506
Power Supply
FRONT
81.30 ±0.50
3.201 ±0.020
Airflow Front to Back
15.51 ±0.80
0.611 ±0.031
75.00
2.953
AC input connector: IEC 320-C14
Dimensions: 3.20" x 11.00" x 1.571" [81.3mm x 279.4mm x 39.9mm]
OPTIONAL ACCESSORIES
Description
Part Number
12V D1U3CS Output Connector Card
D1U3CS-12-CONC
APPLICATION NOTES
Document Number
Description
Link
ACAN-41
D1U3CS Output Connector Card
www.murata-ps.com/data/apnotes/acan-41.pdf
ACAN-43
D1U3CS-x Communication Protocol
www.murata-ps.com/data/apnotes/acan-43.pdf
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to: http://www.murata-ps.com/requirements/
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice.
© 2013 Murata Power Solutions, Inc.
www.murata-ps.com/support
D1U3CS-W-850-12-HxxC.A03 Page 6 of 6
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