D1U4-W-1200-12-Hx Series
AC/DC Front End Power Supply
D1U4-W-1200-12-Hx.B02 Page 1 of 5
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ORDERING 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 90 115/230 264 Vac
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
Ripple Voltage & Noise
1
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
Ripple Voltage & Noise
1
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
Ripple Voltage & Noise
1
20MHz Bandwidth 50 mV p-p
Operating Range 0 4 A
Load Capacitance 1530 µF
FEATURES
1200W (220Vac), 900W (110Vac)
Output power
12V Main output,
3.3V or 5V standby output of 20W
1U height: 4.0" x 14.0" x 1.6"
13.4 Watts per cubic inch density
N+1 redundancy capable,
including hot-docking
Active current sharing on main output
Overvoltage, overcurrent,
overtemperature protection
Internal cooling fans
I²C Bus Interface with status indicators
Optional 1U x 19" power-shelf
RoHS compliant
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 I
2
C
management interface. Four units can be packaged into an optional 19" 1U power shelf to provide up to 4.8kW of
power.
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 Certicate
and Test Report