Datasheet
UEI25 Series
Single Output Isolated 25-Watt DC/DC Converters
MDC_UEI25W.B09 Page 2 of 24
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PART NUMBER STRUCTURE
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
➀ ➂
Root Models ➀
Output Input
Effi ciency Package, C75
VOUT
(V)
IOUT
(A,
max)
Total
Power
(W)
R/N (mVp-p) Regulation (Max.)
VIN
Nom.
(V)
Range
(V)
IIN,
min.
load
(mA)
IIN,
full
load
(A)Typ. ➁ Max. Line Load Min. Typ. Case (inches) Case (mm) Pinout
UEI25-033-D48 ➃
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
Nominal Output Voltage
in Tenths of a Volt
Unipolar Output Isolated
25-Watt Series
UEI25 - D48-033 -
C
RoHS-6 Hazardous Substance Compliance
(Does not claim EU RoHS exemption 7b, lead in solder)
Input Voltage Range
D48 = 36-75 Vdc
MP
On/Off Control Logic:
P = Positive
N = Negative
Notes:
➀ Please refer to the part number structure for additional options and complete order-
ing part numbers.
➁ Ripple and Noise is shown at 20 MHz bandwidth.
➂ All specifi cations are at nominal line voltage and full load, +25 °C. unless otherwise
noted. See detailed specifi 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.
➃ Minimum load is 10% for rated specifi cations.
Lx
Pin Length Option (through-hole only)
Blank = Std. pin length 0.25˝ (6.3mm)
L1 = 0.110˝ (2.79mm)
➀
L2 = 0.145˝ (3.68mm) ➀
Surface Mount Option
Blank = Through-hole mount
M = Surface mount (MSL rating 2)
➁
➀ Special quantity order is required; samples available with standard pin length only.
➁ SMT (M) versions not available in sample quantities.
➂ Some model number combinations may not be available. See website or contact your local Murata sales representative.