MER1 Series
1kVDC Isolated 1W Single Output DC/DC Converters
KDC_MER1.B06 Page 1 of 11
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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)
1
Ripple & Noise (Max)
1
Efficiency (Min.)
Efficiency (Typ.)
Isolation Capacitance
MTTF
2
V V mA mA % mVp-p % % pF kHrs
MER1S0505SC 5 5 200 233 5.5 6.5 15 25 82 84 50 7684
MER1S0509SC 5 9 111 226 4.2 5 11 20 84 87 55 7698
MER1S0512SC 5 12 84 227 4.6 5.2 9 17 85 87 53 7175
MER1S0515SC 5 15 67 225 4.4 5 9 17 86 87.5 54 6496
MER1S1205SC 12 5 200 97 4.5 5 11 20 82 84 49 7569
MER1S1209SC 12 9 111 95 3 3.4 9 17 84 86.5 66 7317
MER1S1212SC 12 12 84 93 3 3.4 9 17 86 88.5 91 6647
MER1S1215SC 12 15 67 94 2.4 2.7 7 17 85 88 78 6279
MER1S1505SC 15 5 200 79 3.8 4.5 10 20 81 83.5 43 7167
MER1S1509SC 15 9 111 77 2.4 2.8 8 17 83 86.5 68 6906
MER1S1512SC 15 12 84 76 2.3 2.7 7 15 84 87.5 75 6523
MER1S1515SC 15 15 67 75 2.4 2.8 7 15 86 89 107 5916
MER1S2405SC 24 5 200 50 3.1 3.7 15 25 81 84 52 7391
MER1S2409SC 24 9 111 48 2.1 2.5 10 20 83 86.5 75 6490
MER1S2412SC 24 12 84 48 1.8 2.4 9 20 84 87.5 91 6772
MER1S2415SC 24 15 67 48 1.7 2.3 9 20 84 87.5 101 5957
MER1S4805SC 48 5 200 26 3.4 3.9 19 30 77 79.5 47 7354
MER1S4809SC 48 9 111 25 2.4 2.8 14 25 80 83 76 7120
MER1S4812SC 48 12 84 25 2.0 2.4 12 25 79 82.5 88 7088
MER1S4815SC 48 15 67 25 1.9 2.4 11 25 80 83 103 7238
INPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Voltage Range
Continuous operation, 5V input types 4.5 5 5.5
V
Continuous operation, 12V input types 10.8 12 13.2
Continuous operation, 15V input types 13.5 15 16.5
Continuous operation, 24V input types 21.6 24 26.4
Continuous operation, 48V input types 43.2 48 52.8
Reflected Ripple Current
5V input types 7 15
mA p-p
12V input types 4 12
15V input types 4 12
24V input types 8 20
48V input types 25 40
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1mm from case for 10 seconds 260°C
Input voltage V
IN, 5Vin types 7V
Input voltage V
IN, 12Vin types 15V
Input voltage V
IN, 15Vin types 18V
Input voltage V
IN, 24Vin types 28V
Input voltage V
IN, 48Vin types 54V
1. See Ripple & Noise characterisation method.
2. Calculated using MIL-HDBK-217F FN2 with nominal input voltage at full load.
All specifications typical at T
A=25°C, nominal input voltage and rated output current unless otherwise specified.
FEATURES
UL 60950 recognized
RoHS compliant
Typical efficiency to 89%
Wide temperature performance at full
load, –40°C to 85°C
UL 94V-0 package material
No heatsink required
Industry standard pinout
1kVDC isolation ‘Hi Pot Test’
5V, 12V, 15V, 24V, & 48V inputs
5V, 9V, 12V, & 15V output
Fully encapsulated with toroidal
magnetics
No external components required
No electrolytic or tantalum capacitors
PRODUCT OVERVIEW
The MER1 series is the new high performance
version of our 1W NMR series. The MER1 series
is more efficient and offers improved regulation
performance for applications where a wide output
voltage variation can not be tolerated. They are
ideally suited for providing local supplies on
control system boards with the added benefit
of 1kVDC galvanic isolation to reduce switching
noise.
