UWR Series
www.murata-ps.com
Single Output, High Reliability, 2" x 2", 14-20 Watt, DC/DC Converters
Typical units
FEATURES
PRODUCT OVERVIEW
Low cost! Highly reliable!
Proven SMT-on-pcb construction
Designed to meet UL/ EN60950,
BASIC insulation (D48A models)
mark available (48VIN models)
Output voltages: 3.3/5/5.2/12/15 Volts
Ultra-wide input voltage ranges:4.7-7.5V, 9-36V
or 18-75V
Small packages, 2" x 2" x 0.45"
Industry-standard pinouts
Fully isolated, 1500Vdc guaranteed
Guaranteed efficiencies to 84%
–40 to +100°C operating temperature
Modifications and customs for OEM’s
Murata Power Solutions' new A-Series switching DC/DC converters are designed to meet the
demanding long-term-reliability and low-cost requirements of modern telecom, datacom, computer/
networking and industrial-electronics applications. These highly-efficient, rugged devices combine
straightforward circuit topologies, new components, proven SMT-on-pcb construction methods, and
highly repeatable automatic-assembly techniques. The flexibility of the designs and their assembly
methods readily permit minor modifications to optimize performance for specific applications.
The single-output, 14-20 Watt Models of the A-Series deliver both high power densities and
impressive MTBF’s.
Packaged in standard, 2" x 2" x 0.45", shielded metal cases with non-conductive coatings, these
fully isolated (1500Vdc minimum) DC/DC’s offer excellent line/load regulation, full I/O protection,
thermal shutdown, and industry-standard pinouts.
Output voltages include 3.3, 5, 5.2, 12 or 15 Volts. Input voltage ranges are Murata Power Solutions' traditional ultra-wide 9-36V and 18-75V, as well as 4.7-7.5V. Each device provides remote on/
off control and VOUT trim capability. All A-Series UWR models are fully EMI characterized and designed
to meet UL1950, CSA 950 and IEC 950 safety.
A-Series DC/DC’s are extremely reliable, easy-to-use, cost-effective power converters. Use them
to improve the reliability of existing equipment or to develop
new systems that exceed design objectives.
+VOUT
(6)
+VIN
(1)
COMMON
(7)
–VIN
(2)
ON/OFF
CONTROL
(4)
PWM
CONTROLLER
OPTO
ISOLATION
Figure 1. Simplified Schematic
REFERENCE &
ERROR AMP
+VOUT
TRIM
(8)
Typical topology is shown.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
MDC_UWR14-20 Series.G01 Page 1 of 6
UWR Series
Single Output, High Reliability, 2" x 2", 14-20 Watt, DC/DC Converters
➀
Performance Specifications and Ordering Guide
Output
Input
Range
(Volts)
IIN ➃
(mA)
Min.
Typ.
Package
(Case,
Pinout)
5
4.7-7.5
80/3720
76%
77%
C4, P6
±1.0%
24
9-36
35/852
77%
79%
C4, P6
±1.0%
±1.0%
48
18-75
15/425
77.5%
78.5%
C4, P6
100
±1.0%
±1.0%
5
4.7-7.5
80/3800
78%
79%
C4, P6
100
±0.3%
±0.5%
24
9-36
15/1020
81%
82%
C4, P6
50
100
±0.3%
±0.5%
48
18-75
15/496
82%
84%
C4, P6
4000
50
100
±0.3%
±0.5%
48
36-72
15/484
84%
86%
C4, P6
5.2
3000
50
100
±1.0%
±1.0%
5
4.7-7.5
80/3900
79%
80%
C4, P6
UWR-12/1250-D5A-C
12
1250
75
120
±1.0%
±1.0%
5
4.7-7.5
80/3660
80%
82%
C4, P6
UWR-12/1650-D12A-C
12
1650
50
100
±0.3%
±0.5%
24
9-36
15/982
82%
84%
C4, P6
UWR-12/1650-D48A-C
12
1650
75
100
±0.3%
±0.5%
48
18-75
15/491
84%
85%
C4, P6
UWR-15/1000-D5A-C
15
1000
75
150
±1.0%
±1.0%
5
4.7-7.5
80/3660
80%
82%
C4, P6
UWR-15/1300-D12A-C
15
1300
50
100
±0.3%
±0.5%
24
9-36
20/967
84%
85%
C4, P6
UWR-15/1300-D48A-C
15
1300
75
100
±0.3%
±0.5%
48
18-75
10/484
84%
86%
C4, P6
VOUT
(Volts)
IOUT
(mA)
R/N (mVp-p) ➁
Typ.
Max.
Regulation (Max.)
Line
Load ➂
UWR-3.3/4250-D5A-C
3.3
4250
50
100
±1.0%
±1.0%
UWR-3.3/4850-D12A-C
3.3
4850
50
75
±0.5%
UWR-3.3/4850-D48A-C
3.3
4850
50
100
UWR-5/3000-D5A-C
5
3000
50
UWR-5/4000-D12A-C
5
4000
50
UWR-5/4000-D48A-C
5
4000
UWR-5/4000-D48E-C➄
5
UWR-5.2/3000-D5A-C
Root Model ➅
➀ Typical at TA = +25°C under nominal line voltage and full-load conditions unless otherwise
noted.
➁ Ripple/Noise (R/N) measured over a 20MHz bandwidth.
➂ 10% to 100% load.
VIN Nom.
(Volts)
Efficiency
➃ Nominal line voltage, no-load/full-load conditions.
➄ See Technical Notes for an explanation of trading off input voltage ranges for higher full-power
operating temperature.
➅ These are not complete part numbers. Please see the Part Number Structure.
Part Number Structure
Mechanical Specifications
U WR - 5 / 4000 - D12 A - C
2.00
(50.80)
RoHS-6 hazardous substance compliant*
A-Series
High Reliability
Output Configuration:
U = Unipolar
Wide Range Input
Case C4
Input Voltage Range:
D5 = 4.7-7.5 Volts (5V nominal)
D12 = 9-36 Volts (24V nominal)
D48 = 18-75/36-72 Volts (48V nominal)
Nominal Output Voltage:
3.3, 5, 12 or 15 Volts
Maximum Output Current
in mA
METAL CASE
0.45
(11.43)
INSULATED BASE
0.040 ±0.002 DIA.
(1.016 ±0.051)
0.20 MIN
(5.08)
1.800
(45.72)
0.10
(2.54)
* Contact Murata Power Solutions
for availability.
Temperature Derating
5
0.200
(5.08)
20
6
G
BB
18
1
2
16
D
Output Power (Watts)
E
C
0.400
(10.16)
BB, G
D, E, F
7
3
1.200
(30.48)
3 EQ. SP. @
0.400 (10.16)
2.00
(50.80)
4
F
14
8
A
12
AA
UWR-3.3/4250-D5A
UWR-3.3/4850-D12A
UWR-3.3/4850-D48A
UWR-5/3000-D5A
UWR-5/4000-D12A
UWR-5/4000-D48A
UWR-5/4000-D48E
UWR-5.2/3000-D5A
UWR-12/1250-D5A
UWR-12/1650-D12A
UWR-12/1650-D48A
UWR-15/1000-D5A
UWR-15/1300-D12A
UWR-15/1300-D48A
10
8
6
4
2
0.100
(2.54)
B
F
A
A
E
C
B
G
D
E
C
B
E
C
B
BOTTOM VIEW
I/O Connections
0
–40
0
40
45
50
0.40
(10.16)
55
60
65
70
75
80
85
90
95
100
Ambient Temperature (°C)
1. UWR-3.3/4850-D48A (18-75V input, curve A) and UWR-3.3/4850-D12A (9-36V input, curve A)
will derate curve AA if used over the limited input ranges of 20-60V or 10-30V, respectively.
2. "D48A" models (18-75V input ranges) that derate along curve B will derate along curve BB
if used over the more limited input range of 24-60V.
Pin
1
2
3
4
5
6
7
8
Function P6
+Input
–Input
Pin not installed
On/Off Control
Pin not installed
+Output
Common
Trim
Notes:
For "D5A" and "D12A" models, the
case is connected to pin 2 (–VIN).
For "D48A" and "D48E" models, the
case is connected to pin 1 (+VIN).
Dimensions are in inches (mm) shown for ref. only.
Third Angle Projection
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 2˚
Components are shown for reference only.
www.murata-ps.com/support
MDC_UWR14-20 Series.G01 Page 2 of 6
UWR Series
Single Output, High Reliability, 2" x 2", 14-20 Watt, DC/DC Converters
Performance/Functional Specifications
Typical @ TA = +25°C under nominal line voltage and full-load conditions, unless noted. ➀
Input
Absolute Maximum Ratings
Input Voltage Range:
D5A Models
D12A Models
D48A/D48E Models
4.7-7.5 Volts (5V nominal)
9-36 Volts (24V nominal)
18-75/36-72 Volts (48V nominal)
Input Current
See Ordering Guide
Input Filter Type
Pi (C-type for D5A models)
Overvoltage Shutdown:
D5A Models
D12A Models
D48A and /D48E Models
10 Volts
40 Volts
80 Volts
Reverse-Polarity Protection
Yes (Instantaneous, 10A maximum)
Output Overvoltage Protection:
3.3V Outputs
5V/5.2V Outputs
12V Outputs
15V Outputs
On/Off (Sync.) Control (Pin 4)➁
TTL high = off, low (or open) = on
Output Current
Input Voltage:
"D5A" Models
"D12A" Models
"D48A" and "D48E" Models
Input Reverse-Polarity Protection
11 Volts
44 Volts
88 Volts
Current must be