D1U3CS-W-850-12-HxxC Series

81mm 1U Front End AC-DC Power Supply Converter

D1U3CS-W-850-12-HxxC.A03 Page 1 of 6

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ORDERING GUIDE

Part Number

Power Output

Main

Output

Airflow

D1U3CS-W-850-12-HC4C

850W

12V

3.3V

Back to front

D1U3CS-W-850-12-HC3C

Front to back

INPUT CHARACTERISTICS

Parameter

Conditions

Min.

Nom.

Max.

Units

Voltage Operating Range

90

115/230

264

Vac

Frequency

47

50/60

63

Hz

Turn-on Voltage

Ramp up

90

Vac

Turn-off Voltage

Ramp down

73

Maximum Current

850W, 100Vac

10

Arms

Inrush Current

Cold start between 0 to 200msec

25

Apk

Power Factor

At 230Vac, full load

0.98

Efficiency (230Vac) excluding fan

load

20% load

88

89

%

50% load

92

93.5

100% load

88

93

OUTPUT VOLTAGE CHARACTERISTICS

Output

Voltage

Parameter

Conditions

Min.

Typ.

Max.

Units

12V

Voltage Set Point Accuracy

50% load

11.97

12.0

12.02

Vdc

Line and Load Regulation

11.4

12.6

20MHz Bandwidth

120

mV p-p

Output Current

0

69.2

A

Load Capacitance

10000

μF

3.3VSB

Voltage Set Point Accuracy

50% load

3.28

3.3

3.32

Vdc

Line and Load Regulation

3.13

3.46

20MHz Bandwidth

50

mV p-p

Output Current

0

6

A

Load Capacitance

350

μF

1

For 5vSB, contact Murata Sales for availablity.

2

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.

FEATURES

850W output power

12V main output

3.3V or 5V standby output of 20W

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)

PMBus™ / I²C interface

RoHS compliant

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 overtempera-

ture 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.

CB

Test Certificate

and Test Report

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