MEJ2 Series
5.2kVDC Isolated 2W DC-DC Converters
KDC_MEJ2_G01 Page 1 of 8
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SELECTION GUIDE
Order Code
Nominal Input
Voltage
Output Voltage
Output Current
Input Current
at Rated Load
Load Regulation
(Typ)
Load Regulation
(Max)
Ripple & Noise
(Typ)3
Ripple & Noise
(Max)3
Efficiency
(Min)
Efficiency
(Typ)
MTTF2
V V mA % mVp-p % kHrs
MEJ2S0303SC 3.3 3.3 606 756 14.0 17 38 55 67 70 3910
MEJ2S0305SC 3.3 5 400 784 13.0 15 50 65 70 74 3757
MEJ2S0503SC 5 3.3 606 528 10.0 15 40 55 67 70 3830
MEJ2S0505SC 5 5 400 503 8.5 10 43 55 72 75 3654
MEJ2S0509SC 5 9 222 505 8.0 11 36 50 75 78 3472
MEJ2S0512SC 5 12 167 495 8.0 12 40 55 74 77 3663
MEJ2S0515SC 5 15 133 488 7.0 10 34 45 76 79 2629
MEJ2S1203SC 12 3.3 606 207 9.5 11 43 60 70 73 3259
MEJ2S1205SC 12 5 400 214 8.0 10 43 60 75 78 3200
MEJ2S1209SC 12 9 222 205 7.0 10 35 50 75 79 2453
MEJ2S1212SC 12 12 167 207 6.5 8 35 50 76 80 2779
MEJ2S1215SC 12 15 133 205 7.0 10 32 45 76 80 2707
MEJ2S1505SC 15 5 400 171 8.5 10 44 60 73 76 2638
MEJ2S1509SC 15 9 222 165 6.5 8 35 50 74 78 2203
MEJ2S1512SC 15 12 167 164 6.5 8 38 55 74 79 2330
MEJ2S1515SC 15 15 133 166 7.0 8 36 50 74 78 2100
MEJ2D0503SC 5 ±3.3 ±303 535 8.5 10 26 40 67 71 3969
MEJ2D0505SC 5 ±5 ±200 508 7.5 9 34 50 72 76 3654
MEJ2D0509SC 5 ±9 ±111 510 6.5 8 27 40 76 79 3472
MEJ2D0512SC 5 ±12 ±83 504 5.0 8 27 40 77 80 3663
MEJ2D0515SC 5 ±15 ±67 492 7.0 9 20 35 74 78 2629
MEJ2D1203SC 12 ±3.3 ±303 205 8.0 9 37 55 72 75 3270
MEJ2D1205SC 12 ±5 ±200 212 7.0 8 32 45 75 79 3268
MEJ2D1209SC 12 ±9 ±111 206 5.5 7 27 40 77 81 2453
MEJ2D1212SC 12 ±12 ±83 208 5.5 7 27 40 77 81 2779
MEJ2D1215SC 12 ±15 ±67 203 6.0 7 24 40 78 82 2707
MEJ2D1505SC 15 ±5 ±200 170 7.0 9 37 50 74 78 2638
MEJ2D1509SC 15 ±9 ±111 163 5.5 7 26 40 76 80 2203
MEJ2D1512SC 15 ±12 ±83 167 5.5 7 26 40 75 80 2330
MEJ2D1515SC 15 ±15 ±67 167 5.5 7 23 35 75 79 2100
INPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Voltage range
Continuous operation, 3V input types 2.97 3.3 3.63
V
Continuous operation, 5V input types 4.5 5 5.5
Continuous operation, 12V input types 10.8 12 13.2
Continuous operation, 15V input types 13.5 15 16.5
Input reflected ripple
3.3V input types 100 140
mA
5V input types 60 90
12V & 15V input types 22 40
1. Calculated using MIL-HDBK-217 FN2 calculation model with nominal input voltage at full load.
2. See safety approvals section for limitations of use.
3. See ripple & noise test method.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
FEATURES
RoHS compliant
Basic/supplementary isolation to UL609502
ANSI/AAMI ES60601-1
Power density 0.81W/cm3
Single and dual outputs
UL 94V-0 package material
Footprint 1.96cm2
SIP package style
5.2kVDC isolation ‘Hi Pot Test’
3.3V, 5V, 12V & 15V inputs
3.3V, 5V, 9V, 12V & 15V output
Internal SMD construction
Fully encapsulated with toroidal magnetics
Pin compatible with the MEV, NMV, NMK, &
NMJ series
MTTF up to 4.2 million hours
PRODUCT OVERVIEW
The MEJ2 series are single and dual output
medically approved DC-DC converters in a 7 pin
SIP package style offering a power upgrade path
from the NMJ series SIP DC-DC converters. The
MEJ2 series is UL60950 and ANSI/AAMI ES60601-1
recognised, which makes it ideal for applications
where safety and miniaturisation are of paramount
importance.