MER1 Series
www.murata-ps.com
1kVDC Isolated 1W Single Output DC/DC Converters
SELECTION GUIDE
Order Code
V V mA mA % mVp-p % % pF kHrs
MER1S0505SC 5 5 200 233 5.5 6.5 15 25 82 84 50 7684
FEATURES
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
UL 60950 recognized
MER1S0515SC 5 15 67 225 4.4 5 9 17 86 87.5 54 6496
RoHS compliant
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
Typical efciency to 89%
MER1S1212SC 12 12 84 93 3 3.4 9 17 86 88.5 91 6647
Wide temperature performance at full
MER1S1215SC 12 15 67 94 2.4 2.7 7 17 85 88 78 6279
load, 40C to 85C
MER1S1505SC 15 5 200 79 3.8 4.5 10 20 81 83.5 43 7167
UL 94V-0 package material 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
No heatsink required
MER1S1515SC 15 15 67 75 2.4 2.8 7 15 86 89 107 5916
Industry standard pinout
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
1kVDC isolation Hi Pot Test
MER1S2412SC 24 12 84 48 1.8 2.4 9 20 84 87.5 91 6772
5V, 12V, 15V, 24V, & 48V inputs
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
5V, 9V, 12V, & 15V output
MER1S4809SC 48 9 111 25 2.4 2.8 14 25 80 83 76 7120
Fully encapsulated with toroidal
MER1S4812SC 48 12 84 25 2.0 2.4 12 25 79 82.5 88 7088
magnetics
MER1S4815SC 48 15 67 25 1.9 2.4 11 25 80 83 103 7238
No external components required
INPUT CHARACTERISTICS
No electrolytic or tantalum capacitors
Parameter Conditions Min. Typ. Max. Units
Continuous operation, 5V input types 4.5 5 5.5
Continuous operation, 12V input types 10.8 12 13.2
PRODUCT OVERVIEW
Voltage Range Continuous operation, 15V input types 13.5 15 16.5 V
The MER1 series is the new high performance
Continuous operation, 24V input types 21.6 24 26.4
version of our 1W NMR series. The MER1 series
Continuous operation, 48V input types 43.2 48 52.8
is more efcient and offers improved regulation
5V input types 7 15
performance for applications where a wide output
12V input types 4 12
voltage variation can not be tolerated. They are
Reected Ripple Current 15V input types 4 12 mA p-p
ideally suited for providing local supplies on
24V input types 8 20
control system boards with the added benet
48V input types 25 40
of 1kVDC galvanic isolation to reduce switching
noise.
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1mm from case for 10 seconds 260C
Input voltage VIN, 5Vin types 7V
Input voltage VIN, 12Vin types 15V
Input voltage VIN, 15Vin types 18V
Input voltage VIN, 24Vin types 28V
Input voltage VIN, 48Vin types 54V
1. See Ripple & Noise characterisation method.
2. Calculated using MIL-HDBK-217F FN2 with nominal input voltage at full load.
All specications typical at TA=25C, nominal input voltage and rated output current unless otherwise specied.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
KDC_MER1.B06 Page 1 of 11
Nominal Input
Voltage
Output Voltage
Output Current
Input Current at
Rated Load
Load Regulation (Typ)
Load Regulation (Max)
1
Ripple & Noise (Typ)
1
Ripple & Noise (Max)
Efciency (Min.)
Efciency (Typ.)
Isolation Capacitance
2
MTTFMER1 Series
1kVDC Isolated 1W Single Output DC/DC Converters
OUTPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Rated Power TA=-40C to 85C 1W
Voltage Set Point Accuracy See tolerance envelope
Line regulation High VIN to low VIN 1.05 1.1 %/%
ISOLATION CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Isolation test voltage Flash tested for 1 second 1000 VDC
Resistance Viso= 1000VDC 10 G
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
5V & 48V input types 62
Switching frequency 12V & 15V input types 75 kHz
24V input types 82
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Specication All output types -40 85
Storage -50 125
C
5V, 12V, & 15V input types 15
Case Temperature rise above ambient
24V & 48V input types 20
Cooling Free air convection
TEMPERATURE DERATING GRAPH OUTPUT VOLTAGE TOLERANCE ENVELOPE
5%
1.5
2%
85C
1.0
VNOM
0%
0.5
-4%
25 50 75 100
10
0
Output Load Current (%)
-40 50 100 150
0
The voltage tolerance envelope shows typical load regulation characteristics for this
Ambient Temperature (C)
product series. The tolerance envelope is the maximum output voltage variation due
to changes in output loading.
RoHS COMPLIANT INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of
260C for 10 seconds. The pin termination nish on the SIP package type is Tin Plate, Hot Dipped
over Matte Tin with Nickel Preplate. They are backward compatible with Sn/Pb soldering systems.
For further information, please visit www.murata-ps.com/rohs
www.murata-ps.com/support
KDC_MER1.B06 Page 2 of 11
Output Power (W)
Output Voltage