PQC250 Series
250W 3" x 5" Convection Cooled AC-DC Power Supply
DESCRIPTION
The PQC250 series switching power supplies utilize advanced component and circuit technologies to
deliver high efficiency and low power dissipation in both operational and standby operation in a compact
3.0" x 5.0" x 1.40" package. Designed for medical, computing, communications, telecom, industrial,
consumer, and other OEM applications, deployable in 1U customer systems. All models offer universal AC
input capability with active power factor correction (PFC) and compliance to worldwide safety and EMC
standards.
ORDERING GUIDE (BASIC MODEL NUMBER)
Main output (V1)
Current
@ 50°C
250W
Aux Output (V2)
Max. Load
Capacitance Main
output
Current
@ 70°C
1 200W
16.7A
Current
50°C and 70°C
Voltage
VDC
Voltage
VDC
Model Number
PQC250-12-xxx
PQC250-18-xxx
PQC250-24-xxx
PQC250-36-xxx
PQC250-48-xxx
PQC250-54-xxx
PQC-COVER
12
18
24
36
48
54
20.8A
13.8A
10.4A
6.9A
5.2A
4.6A
6000µF
1,600uF
1200µF
1000µF
750µF
11.1A
8.3A
5.6A
4.2A
3.7A
5
0.5A
500µF
Optional cover kit assembly see PQC-COVER datasheet for details
1 Output De-Rating at 70°C is for horizontal orientation with component side up only. Please refer to ACAN-77 for details
2 Please contact Murata for additional details and availability for Cover/Chassis kit
3
29V model available, consult with factory for more informaiton
INPUT CHARACTERISTICS
FEATURES
Parameter
Conditions
Single Phase
Min
90
47
75
65
Nom
100/240 264
50/60
Max
Units
VAC
Hz
VAC
VAC
Industry leading MTBF
Input Voltage AC Operating Range
Input Frequency
Turn-on input voltage
Turn-off input voltage
2 DC input1 refer to:
Certified to IEC60601 Ed.3 medical (2 x MOPP Pri-Sec; 1 x
MOPP Pri-Chassis Ground); PQC250-xx Series.
60950-1 compliant
63
90
80
300
400
Input rising
Input falling
IEC60335-1 Certificate
Designed to comply with IEC60601-1-2 4th Edition EMC
127
260
Standard Requirements1
Part_Number_Options_Guide
250W compact high density; operation to 250W at +50°C
Very low no load standby power; designed to meet
ENERGY STAR® Program Requirements for Single Voltage
External AC-DC Power Supplies
True zero load operation of the Main (V1) output; no
minimum load requirements
3" x 5" industry standard footprint
Optional DC input capability
High efficiency 94% typical
Vin = 115VAC; Full Load
2Vin = 127-300
2.5
30
Arms
A
A
Apk
W/VA
msec
Maximum input current
2.7
1.5
2 Vin = 260-400
Inrush Current
Power Factor
Hold-up Time
230VAC,Cold start, 25°C;
At 115VAC, full load
90VAC; Full Load
20% Full Load
50% Full Load
0.95
16
88.5
94
95
Efficiency @ 230VAC for PQC250-48
model.
%
W
100% Full Load
(PS_ON = OFF; Aux (V2) = 0A
Remote sense, main output
No Load Input Power Consumption
<0.5W
Universal AC input with active PFC
Less than 1U high
RoHS compliant
1 Consult with factory for details and availability
Medical certification applies to AC input models only.
2
OUTPUT CHARACTERISTICS
Parameter
Active inrush protection
Conditions
Main (V1) Output1
Aux (V2) Output
Stable Operation
Zero to Full Load2
Min
0
Nom
Max
1
5
Units
%
Compatibility with MVAC250 Series products1,2
Droop Current Share option
Line, Load Regulation
1 When deployed in End User Systems
2 Some features of MVAC250 Series not available on this product
Minimum Load Capability
Output Ripple
A
3
Pending certification
120
mVp-p
1 zero load output regulation will increase by up to +10% of nominal set point voltage for all models. 200mA min. load current is required to keep output
voltage within 1%.
CB Test Certificate and Test Reports available upon request
2 Ripple and noise are measured with 0.1uF ceramic capacitor and 10uF tantalum capacitor. A short coaxial cable with 50 ohm termination is used.
AUXILIARY OUTPUT CHARACTERISTICS (ALL MODELS)
Aux Output
Voltage
5V
Line, Load, Cross
Regulation
5%
Ripple Voltage &
Noise
120mVp-p
Auxiliary Output
Load Current Load Capacitance
0 to 0.5A 0 to 220µF
Aux (V2)
M
Available now at www.murata-ps.com/en/3d/acdc.html
12V Model
Certificate and Test Report
For full details go to
Applies to AC Input models
www.murata-ps.com/rohs
www.murata-ps.com/support
PQC250.A06 Page 1 of 7
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