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UEI25 Series
Single Output Isolated 25-Watt DC/DC Converters
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE ? ?
Output
Input
I OUT
Total
R/N (mVp-p)
Regulation (Max.)
V IN
I IN ,
min.
I IN ,
full
Ef?ciency
Package, C75
Root Models ?
V OUT
(V)
(A, Power
max) (W) Typ. ? Max.
Line
Load
Nom. Range load
(V) (V) (mA)
load
(A)
Min.
Typ.
Case (inches)
Case (mm)
Pinout
UEI25-033-D48 ?
3.3
7.5
25
50
80
±0.1%
±0.2%
48
36-75
75
0.58
87.0% 89.5%
0.96x1.1x0.32
24.4x27.9x8.1
P85
UEI25-050-D48
5
5
25
50
80
±0.1%
±0.2%
48
36-75
30
0.57
89.0%
91%
0.96x1.1x0.32
24.4x27.9x8.1
P85
UEI25-120-D48
12
2.1
25.2
95
120
±0.1%
±0.1%
48
36-75
20
0.6
86.0% 87.5%
0.96x1.1x0.32
24.4x27.9x8.1
P85
Notes:
? Please refer to the part number structure for additional options and complete order-
ing part numbers.
? Ripple and Noise is shown at 20 MHz bandwidth.
? All speci?cations are at nominal line voltage and full load, +25 °C. unless otherwise
noted. See detailed speci?cations for full conditions.
Output capacitors are 1 μF ceramic in parallel with 10 μF electrolytic. The input cap
is 4.7 μF ceramic, low ESR.
I/O caps are necessary for our test equipment and may not be needed for your ap-
plication.
? Minimum load is 10% for rated speci?cations.
PART NUMBER STRUCTURE
UEI25 - 033 - D48 P M Lx - C
Unipolar Output Isolated
25-Watt Series
Nominal Output Voltage
in Tenths of a Volt
Input Voltage Range
D48 = 36-75 Vdc
RoHS-6 Hazardous Substance Compliance
(Does not claim EU RoHS exemption 7b, lead in solder)
Pin Length Option (through-hole only)
Blank = Std. pin length 0.25? (6.3mm)
L1 = 0.110? (2.79mm) ?
L2 = 0.145? (3.68mm) ?
Surface Mount Option
Blank = Through-hole mount
M = Surface mount (MSL rating 2) ?
On/Off Control Logic:
P = Positive
N = Negative
? Special quantity order is required; samples available with standard pin length only.
? SMT (M) versions not available in sample quantities.
? Some model number combinations may not be available. See website or contact your local Murata sales representative.
www.murata-ps.com/support
MDC_UEI25W.B09 Page 2 of 24
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