C1U-W-1200-12-Tx Series
AC/DC Front End Power Supply
PRODUCT OVERVIEW
The C1U-W-1200 is a 1200 Watt universal AC input, power-factor-corrected (PFC) front-end power supply for general
applications. The main output is 12V and standby output of either 5V or 3.3V. Packaged in U low profile, 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 sup-
ports reliable operation conditions. The C1U-W-1200 is designed to auto-recover from over-temperature faults.
FEATURES
RoHS compliant
1200W (110/220Vac) Output power
12V Main output,
3.3V or 5V standby output
Dimensions: 1.67” x 5.5” x 14.2”
9.2 Watts per cubic inch density
N+1 redundancy capable,
Active current sharing on main output
Over-voltage, over-current,
over-temperature protection
Internal cooling fans
SELECTION GUIDE
Part Number
C1U-W-1200-12-TA1C
C1U-W-1200-12-TC1C
C1U-W-1200-12-TA2C
C1U-W-1200-12-TC2C
Power Output
Universal Line
1200W
1200W
1200W
1200W
Main Output
12V
12V
12V
12V
Standby
Output
5V
3.3V
5V
3.3V
Airflow
Front to back
Front to back
Back to front
Back to front
INPUT CHARACTERISTICS
Parameter
Input Voltage Operating Range
Input Frequency
Turn-on Input Voltage
Turn-off Input Voltage
Maximum Input Current
Inrush Current
Power Factor
Conditions
Min.
90
47
78.5
70.5
Typ.
55
Max.
264
63
86.5
78
15
90
Units
Vac
Hz
Vac
Arms
Apk
Ramp up
Ramp down
Output load >90%
Output load >50%
95%
75%
OUTPUT VOLTAGE CHARACTERISTICS
Output
Voltage
Parameter
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise
1
Output Current
Load Capacitance
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise
1
Operating Range
Load Capacitance
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise
1
Operating Range
Load Capacitance
Conditions
Min.
11.75
Typ.
12.12
Max.
12.48
120
98.3
40000
Units
Vdc
mV p-p
A
μF
Vdc
mV p-p
A
μF
Vdc
mV p-p
A
μF
12V
20MHz Bandwidth
0
3.3
3.2
0
5
4.85
0
3.3Vsb
3.4
33
6
1530
5.15
50
4
1530
5Vsb
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. The output noise requirements apply over a 0 Hz to 20 MHz bandwidth. A short coaxial
cable with 50ohm scope termination is used. See Ripple Test Setup diagram.
1
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries
email: toronto@murata-ps.com, tel:
+1 (866) 740 1232
C1U-W-1200-12-Tx.A04
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MURATA-PS [ MURATA POWER SOLUTIONS INC. ]
