Datasheet
Notes:
For "D5A" and "D12A" models, the
case is connected to pin 2 (–V
IN).
For "D48A" and "D48E" models, the
case is connected to pin 1 (+V
IN).
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.
Wide Range Input
Output Confi guration:
U = Unipolar
Nominal Output Voltage:
3.3, 5, 12 or 15 Volts
Maximum Output Current
in mA
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)
A-Series
High Reliability
5U WR 4000 D12 A-
/
-
BOTTOM VIEW
1.800
(45.72)
0.10
(2.54)
2.00
(50.80)
8
5
6
7
0.40
(10.16)
0.200
(5.08)
0.400
(10.16)
0.100
(2.54)
1
2
3
4
METAL CASE
INSULATED BAS
E
0.040 ±0.002 DIA.
(1.016 ±0.051)
2.00
(50.80)
0.20 MIN
(5.08)
0.45
(11.43)
1.200
(30.48)
3 EQ. SP. @
0.400 (10.16)
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.
UWR-3.3/4250-D5A-C 3.3 4250 50 100 ±1.0% ±1.0% 5 4.7-7.5 80/3720 76% 77% C4, P6
UWR-3.3/4850-D12A-C 3.3 4850 50 75 ±0.5% ±1.0% 24 9-36 35/852 77% 79% C4, P6
UWR-3.3/4850-D48A-C 3.3 4850 50 100 ±1.0% ±1.0% 48 18-75 15/425 77.5% 78.5% C4, P6
UWR-5/3000-D5A-C 5 3000 50 100 ±1.0% ±1.0% 5 4.7-7.5 80/3800 78% 79% C4, P6
UWR-5/4000-D12A-C 5 4000 50 100 ±0.3% ±0.5% 24 9-36 15/1020 81% 82% C4, P6
UWR-5/4000-D48A-C 5 4000 50 100 ±0.3% ±0.5% 48 18-75 15/496 82% 84% C4, P6
UWR-5/4000-D48E-C➄ 5 4000 50 100 ±0.3% ±0.5% 48 36-72 15/484 84% 86% C4, P6
UWR-5.2/3000-D5A-C 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
Performance Specifi cations and Ordering Guide
IOUT
(mA)
R/N (mVp-p) ➁
Load ➂
VOUT
(Volts)
Output
Package
(Case,
Pinout)
Effi ciency
Regulation (Max.)
Line
VIN Nom.
(Volts)
Range
(Volts)Root Model ➅
Input
IIN
➃
(mA)
➀
Max.
Typ.
Typ.
Min.
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 Specifi cations
Temperature Derating
Output Power (Watts)
Ambient Temperature (°C)
20
18
16
14
12
10
8
6
4
2
0
UWR-3.3/4250-D5A F
UWR-3.3/4850-D12A A
UWR-3.3/4850-D48A A
UWR-5/3000-D5A E
UWR-5/4000-D12A C
UWR-5/4000-D48A B
UWR-5/4000-D48E G
UWR-5.2/3000-D5A D
UWR-12/1250-D5A E
UWR-12/1650-D12A C
UWR-12/1650-D48A B
UWR-15/1000-D5A E
UWR-15/1300-D12A C
UWR-15/1300-D48A B
–40 0 40 45 50 55 60 65 70 75 80 85 90 95 10
0
A
AA
BB, G
C
F
E
D
D, E, F
B
BB
G
Case C4
I/O Connections
Pin Function P6
1 +Input
2 –Input
3 Pin not installed
4 On/Off Control
5 Pin not installed
6 +Output
7 Common
8 Trim
RoHS-6 hazardous sub-
stance compliant*
C
* Contact Murata Power Solutions
for availability.
-
Third Angle Projection
Dimensions are in inches (mm) shown for ref. only.
Components are shown for reference only.
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 2˚
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UWR Series
Single Output, High Reliability, 2" x 2", 14-20 Watt, DC/DC Converters
MDC_UWR14-20 Series.G01 Page 2 of 6