PSA, PSR Series Data Sheet
1 to 6 A Switching Regulator
Input voltage up to 144 VDC
Single output of 3.3 to 48 VDC
No input to output isolation
•
•
•
•
Efficiency up to 95%
Low input-output differential voltage
No derating over temperature
Board or chassis mountable
Model Selection
Output
V
o nom
I
o nom
[VDC]
[A]
5
2
5
3
5
4
5
5
5.1
2
5.1
5
12
1.5
12
2.5
12
3
15
1.5
15
2.5
15
3
24
1.5
24
2
24
2.5
36
1.2
36
2
48
1
Input voltage
V
i
[VDC]
8 - 80
8 - 80
7 - 40
7 - 35
8 - 40
7 - 35
18 - 144
15 - 80
15 - 40
22 - 144
19 - 80
19 - 40
31 - 144
29 - 80
29 - 60
44 - 144
42 - 80
58 - 144
Rated power
P
o tot
[W]
10
15
20
25
10.2
25.5
18
30
36
22.5
37.5
45
36
48
60
43.2
72
48
Efficiency
h
typ
[%]
74
79
83
83
75
83
87
87
89
89
89
90
93
92
93
95
94
95
Type
Options
PSR 52-7
PSR 53-7
PSR 54-7
PSA 55-7
PSA 5A2-2
PSA 5A5-2
PSA 121.5-7iR
PSR 122.5-7
PSA 123-2
PSA 151.5-7iR
PSR 152.5-7
PSA 153-2
PSA 241.5-7iR
PSR 242-7
PSA 242.5-2
PSA 361-7iR
PSR 362-7
PSA 481-7iR
Y
-9, i, P, R, Y
-9, i, P, R, Y
-9, i, P, R, Y
iRY-Package
iRY-Package
-9, P, Y
-9, i, P, R, Y
iRY-Package
-9, P, Y
-9, i, P, R, Y
iRY-Package
-9, P, Y
-9, i, P, R, Y
iRY-Package
-9, P, Y
-9, i, P, R, Y
-9, P, Y
REV. FEB 09, 2006
Page 1 of 3
www.power-one.com
PSA, PSR Series Data Sheet
1 to 6 A Switching Regulator
Input
Input voltage
No load input current
refer to selection chart
≤50
mA
Output
Efficiency
Output voltage setting accuracy
Output voltage switching noise
Line regulation
Load regulation
Minimum load
Current limitation
Operation in parallel
V
i nom
,
I
o nom
V
i nom
,
I
o nom
IEC/EN 61204, total
V
i min
-
V
i max
,
I
o nom
V
i nom
, 0 -
I
o nom
not required
rectangular U/I characteristic
by current limitation
up to 95%
±0.6%
V
o nom
typ. 0.3%
typ. ±0.3%
typ. 0.3%
0A
typ. 110%
I
o nom
Protection
Input reverse polarity
Input undervoltage lockout
Input transient protection
Output
Output overvoltage
with external fuse
typ. 80%
V
i min
suppressor diode
no-load, overload and short circuit proof
suppressor diode
typ. 150%
V
o nom
Safety
Approvals
Protection degree
Electric strength test voltage
EN 60950, UL 1950, CSA C22.2 No. 950
I/case and O/case
IP 20/40
500/750/1500 VDC
EMC
Electrostatic discharge
Electromagnetic field
Electr. fast transients/bursts
Surge
Conducted disturbances
Electromagnetic emissions
IEC/EN 61000-4-2
IEC/EN 61000-4-3
IEC/EN 61000-4-4
IEC/EN 61000-4-5
IEC/EN 61000-4-6
CISPR 22/EN 55022
Environmental
Operating ambient temperature
Operating case temperature
T
C
Storage temperature
Operating ambient temperature
Operating case temperature
T
C
Storage temperature
Damp heat
Vibration, sinusoidal
Shock
Bump
Random vibration
MTBF
-2,
V
i nom
,
I
o nom
, convection cooled
-2,
V
i nom
,
I
o nom
-2, non operational
-7,
V
i nom
,
I
o nom
, convection cooled
-7,
V
i nom
,
I
o nom
-7, non operational
IEC/EN 60068-2-3
IEC/EN 60068-2-6
IEC/EN 60068-2-27
IEC/EN 60068-2-29
IEC/EN 60068-2-64
MIL-HDBK-217
–10 to 50
–10 to 80
–25 to 100
–25 to 71
–25 to 95
–40 to 100
°C
°C
°C
°C
°C
°C
Options
Extended temperature range
–40 - 71°C, ambient, operating
Inhibit, TTL input, output(s) enabled if left open
Output voltage adjustment
0 - 108%
V
o nom
Output voltage adjustment
±8%
V
o nom
Soldering pins 0.5 x 1.0 mm for PCB mounting
-9
i
R
P
Y
REV. FEB 09, 2006
Page 2 of 3
www.power-one.com
PSA, PSR Series Data Sheet
1 to 6 A Switching Regulator
Mechanical data
Tolerances ±0.3 mm (0.012") unless otherwise indicated.
8.75 (0.34")
European
Projection
18.7 (0.74")
1.2 (0.04")
6.3 (0.25")
20.5 (0.8")
Potentiometer
(option P)
Yellow
LED output
voltage indicator
S09015
Go–
47.5 (1.87")
65 (2.56")
Vo+ i
R
70.2 (2.76")
Gi–
Vi+
2.7 (0.1")
50.2 (2")
5 (0.2")
Measuring point
of case temperature
2.8 x 0.5 (0.11 x 0.02")
1.0 x 0.5
(0.04 x 0.02")
option Y
Accessories
Isolation pads for easy and safe PCB mounting
Filters and ring core chokes for ripple and interference reduction
Adapter kits for DIN-rail and chassis mounting
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for
use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems
without the express written consent of the respective divisional president of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may
change depending on the date manufactured. Specifications are subject to change without notice.
REV. FEB 09, 2006
6.5 (0.25")
25.2 (1")
Page 3 of 3
www.power-one.com
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