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C1U-W-1200-48-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 48V with a standby output of either 5V, 3.3V, or 12V.
Packaged in a 1U low pro?le chassis, it is designed to deliver reliable bulk power to servers, worksta-
tions, storage systems or any 48V distributed power architecture systems requiring high power density.
The highly ef?cient electrical and thermal design with internal cooling fans supports reliable operation
conditions. The C1U-W-1200 is designed to autorecover from overtemperature faults.
SELECTION GUIDE
?
?
? 1200W (110/220Vac) Output power
? 48V Main output,
3.3V, 5V or 12V standby output
?
?
? Dimensions: 5.5" x 14.2" x 1.67"
? 9.2 Watts per cubic inch density
?
?
? N+1 redundancy capable (up to 3 in parallel)
? Active current sharing on main output
Part Number
C1U-W-1200-48-TA1C
C1U-W-1200-48-TC1C
C1U-W-1200-48-TA2C
C1U-W-1200-48-TC2C
C1U-W-1200-48-TB1C
C1U-W-1200-48-TB2C
Power Output
Universal Line
1200W
1200W
1200W
1200W
1200W
1200W
Main Output
48V
48V
48V
48V
48V
48V
Standby
Output
5V
3.3V
5V
3.3V
12V
12V
Air?ow
Front to back
Front to back
Back to front
Back to front
Front to back
Back to front
?
? Overvoltage, overcurrent,
overtemperature protection
?
?
? Internal cooling fans
? RoHS compliant
INPUT CHARACTERISTICS
Parameter
Input Voltage Operating Range
Input Frequency
Turn-on Input Voltage
Turn-off Input Voltage
Conditions
Ramp up
Ramp down
Min.
90
47
78.5
70.5
Typ.
115/230
55
Max.
264
63
86.5
78
Units
Vac
Hz
Vac
Maximum Input Current
Inrush Current
15
90
Arms
Apk
Power Factor
Output load >90%
Output load >50%
95%
75%
OUTPUT VOLTAGE CHARACTERISTICS
Output
Voltage
48V
Parameter
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise 1
Conditions
20MHz Bandwidth
Min.
46.54
Typ.
48
Max.
49.44
480
Units
Vdc
mV p-p
Output Current
Load Capacitance
2
24.6
10000
A
μF
Voltage Set Point Accuracy
Line and Load Regulation
3.2
3.3
3.4
Vdc
3.3Vsb
Ripple Voltage & Noise 1
Operating Range
Load Capacitance
20MHz Bandwidth
0
50
4.5
1530
mV p-p
A
μF
Voltage Set Point Accuracy
Line and Load Regulation
4.85
5
5.15
Vdc
5Vsb
Ripple Voltage & Noise 1
Operating Range
Load Capacitance
20MHz Bandwidth
0
50
4
1530
mV p-p
A
μF
Voltage Set Point Accuracy
Line and Load Regulation
11.2
12
12.4
Vdc
12Vsb
Ripple Voltage & Noise 1
Operating Range
Load Capacitance
20MHz Bandwidth
0
120
1.7
1530
mV p-p
A
μF
1
Ripple and noise are measured with 0.1 uF of ceramic capacitance and 10 uF of tantalum capacitance on each of
　
the power supply outputs. A short coaxial cable with 50ohm scope termination is used.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
CPS_C1U-W-1200-48-Tx.A09 Page 1 of 5
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