Datasheet
NME 24V & 48V Series
Isolated 1W Single Output DC/DC Converters
KDC_NME2.E02 Page 1 of 4
www.murata-ps.com
www.murata-ps.com/suppor t
For full details go to
www.murata-ps.com/rohs
SELECTION GUIDE
Order Code
Nominal Input
Voltage
Output
Voltage
Output Current
Efficiency
Isolation
Capacitance
MTTF
1
Package
Style
V V mA % pF kHrs
NME2405DC 24 5 200 70 40 201
DIP
NME2409DC 24 9 111 75 59 185
NME2412DC 24 12 83 80 78 163
NME2415DC 24 15 66 80 79 136
NME2405SC 24 5 200 70 40 201
SIP
NME2409SC 24 9 111 75 59 185
NME2412SC 24 12 83 80 78 163
NME2415SC 24 15 66 80 79 136
Obsolete
Recommended
Alternative
NME4805DC 48 5 200 70 32 213
DIP MER1S4805SC
NME4809DC 48 9 111 75 50 194 DIP MER1S4809SC
NME4812DC 48 12 83 80 76 164 DIP MER1S4812SC
NME4815DC 48 15 66 80 75 140
DIP MER1S4815SC
NME4805SC 48 5 200 70 32 213
SIP MER1S4805SC
NME4809SC 48 9 111 75 50 194 SIP MER1S4809SC
NME4812SC 48 12 83 80 76 164 SIP MER1S4812SC
NME4815SC 48 15 66 80 75 140
SIP
MER1S4815SC
When operated with additional external load capacitance the rise time of the input voltage will determine the maximum external
capacitance value for guaranteed start up. The slower the rise time of the input voltage the greater the maximum value of the
additional external capacitance for reliable start up.
DESCRIPTION
The NME series of DC/DC Converters is
particularly suited to isolating and/or converting
DC power rails. The galvanic isolation allows
the device to be configured to provide an
isolated negative rail in systems where only
positive rails exist.
FEATURES
RoHS Compliant
Single Isolated Output
1kVDC Isolation
Efficiency up to 80%
Power Density 1.45W/cm
3
UL 94V-0 Package Material
Footprint from 0.69cm
2
Industry Standard Pinout
24V & 48V Input
5V, 9V, 12V and 15V Output
No Heatsink Required
Internal SMD Construction
Fully Encapsulated with Toroidal
Magnetics
No External Components Required
Custom Solutions Available
INPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Voltage range
Continuous operation, 24V input types 21.6 24 26.4
V
Continuous operation, 48V input types 43.2 48 52.8
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
3
1 second
Lead temperature 1.5mm from case for 10 seconds 300°C
Input voltage V
IN, NME24 types 28V
Input voltage V
IN, NME48 types 54V
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2. See derating curve.
3. Supply voltage must be disconnected at the end of the short circuit duration.
All specifications typical at T
A=25°C, nominal input voltage and rated output current unless otherwise specified.
OUTPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Rated Power
2
TA=0°C to 70°C 1.0 W
Voltage Set Point Accuracy See tolerance envelope
Line regulation High V
IN to low VIN 1.2 %/%
Load Regulation
2
10% load to rated load, 5V output types 15
%
10% load to rated load, all other output types 10
Ripple and Noise BW=DC to 20MHz, all output types 150 mV p-p