NMV 24V & 48V Series
3kVDC Isolated 1W Single & Dual Output DC/DC Converters
KDC_NMVC2.G01 Page 1 of 4
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For full details go to
www.murata-ps.com/rohs
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SELECTION GUIDE
Order Code
Nominal
Input
Voltage
Output
Voltage
Output
Current
Load
Regulation
(Max)
Ripple &
Noise (Max)
Efficiency
Isolation
Capacitance
MTTF1
Package
Style
RECOMMENDED
ALTERNATIVES
(Click to view the
MEV1 data sheet)
V V mA % mV p-p % pF kHrs
NOT RECOMMENDED FOR NEW DESIGNS:
NMV2412SC 24 ±12 ±42 10 150 80 65 134 SIP MEV1D2412SC
NMV2405SAC 24 5 200 15 150 70 33 201 SIP MEV1S2405SC
OBSOLETE:
NMV2405DAC 24 5 200 15 150 70 33 201 DIP MEV1S2405DC
NMV2409DAC 24 9 111 10 150 80 40 185 DIP MEV1S2409DC
NMV2412DAC 24 12 84 10 150 80 55 163 DIP MEV1S2412DC
NMV2415DAC 24 15 67 10 150 80 70 136 DIP MEV1S2415DC
NMV2409SAC 24 9 111 10 150 80 40 185 SIP MEV1S2409SC
NMV2412SAC 24 12 84 10 150 80 55 163 SIP MEV1S2412SC
NMV2415SAC 24 15 67 10 150 80 70 136 SIP MEV1S2415SC
NMV4805DAC 48 5 200 15 150 70 48 213 DIP MEV1S4805SC
NMV4809DAC 48 9 111 10 150 80 59 194 DIP MEV1S4809SC
NMV4812DAC 48 12 84 10 150 80 70 169 DIP MEV1S4812SC
NMV4815DAC 48 15 67 10 150 80 81 140 DIP MEV1S4815SC
NMV4805SAC 48 5 200 15 150 70 48 213 SIP MEV1S4805SC
NMV4809SAC 48 9 111 10 150 80 59 194 SIP MEV1S4805SC
NMV4812SAC 48 12 84 10 150 80 70 169 SIP MEV1S4812SC
NMV4815SAC 48 15 67 10 150 80 81 140 SIP MEV1S4815SC
NMV2405DC 24 ±5 ±100 15 150 70 45 194 DIP MEV1D2405DC
NMV2409DC 24 ±9 ±55 10 150 80 52 166 DIP MEV1D2409DC
NMV2412DC 24 ±12 ±42 10 150 80 65 134 DIP MEV1D2412DC
NMV2415DC 24 ±15 ±33 10 150 80 70 101 DIP MEV1D2415DC
NMV2405SC 24 ±5 ±100 15 150 70 45 194 SIP MEV1D2405SC
NMV2409SC 24 ±9 ±55 10 150 80 52 166 SIP MEV1D2409SC
NMV2415SC 24 ±15 ±33 10 150 80 70 101 SIP MEV1D2415SC
NMV4805DC 48 ±5 ±100 15 150 70 45 205 DIP MEV1D4805SC
NMV4809DC 48 ±9 ±55 10 150 80 58 175 DIP MEV1D4809SC
NMV4812DC 48 ±12 ±42 10 150 80 68 137 DIP MEV1D4812SC
NMV4815DC 48 ±15 ±33 10 150 80 75 102 DIP MEV1D4815SC
NMV4805SC 48 ±5 ±100 15 150 70 45 205 SIP MEV1D4805SC
NMV4809SC 48 ±9 ±55 10 150 80 58 175 DIP MEV1D4809SC
NMV4812SC 48 ±12 ±42 10 150 80 68 137 DIP MEV1D4812SC
NMV4815SC 48 ±15 ±33 10 150 80 75 102 DIP MEV1D4815SC
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
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2. Supply voltage must be discontinued at the end of the short circuit duration.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
FEATURES
RoHS compliant
Efficiency to 85%
Power density up to 0.85W/cm3
Single or dual output
UL 94V-0 package material
No heatsink required
Footprint from 1.17cm2
Industry standard pinout
Power sharing on dual output
3kVDC isolation (1 minute)
24V & 48V input
5V, 9V, 12V and 15V output
Internal SMD construction
Fully encapsulated with toroidal
magnetics
No external components required
No electrolytic or tantalum capacitors
DESCRIPTION
The NMV series offers single or dual output ver-
sions in the same size package as the popular
NMA series. The higher isolation is particularly
useful in control type applications where the
standard 1kV is not sufficient.
MV
1W S
NOT RECOMMENDED
FOR NEW DESIGNS
R NEW DESIGNS
NMV 24V & 48V Series
3kVDC Isolated 1W Single & Dual Output DC/DC Converters
KDC_NMVC2.G01 Page 2 of 4
All enquiries: www.murata-ps.com/support
www.murata-ps.com
TEMPERATURE DERATING GRAPH TOLERANCE ENVELOPE
+10%
Output Load Current (%)
Output Voltage
+5%
-7.5%
-2.5%
+2.5%
Typical Load Line
VNOM
100
75
50
25
10
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection21 second
Lead temperature 1.5mm from case for 10 seconds 300°C
Input voltage VIN, NMV24 types 28V
Input voltage VIN, NMV48 types 54V
OUTPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Rated Power1TA=0°C to 70°C 1W
Voltage Set Point Accuracy See tolerance envelope
Line regulation High VIN to low VIN 1.2 %/%
ISOLATION CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Isolation test voltage Flash tested for 1 minute 3000 VDC
Resistance Viso= 1000VDC 1 GΩ
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Switching frequency All input types 100 kHz
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Specification All output types 0 70 °C
Storage -55 150
Cooling Free air convection
TECHNICAL NOTES
ISOLATION VOLTAGE
‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage,
applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
Murata Power Solutions NMV series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 3kVDC for 1 minute.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
For a part holding no specific agency approvals, such as the NMV series, both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or
60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part
could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must
be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according to
safety standard requirements.
REPEATED HIGH-VOLTAGE ISOLATION TESTING
It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials,
construction and environment. The NMV series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled wire. While
parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically
polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We
therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage.
This consideration equally applies to agency recognized parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further
insulation system of physical spacing or barriers.
150
10050
0
0
0.5
1.0
1.5
Safe Operating
Area
Ambient Temperature (°C)
Output Power (W)
70°C
NMV 24V & 48V Series
3kVDC Isolated 1W Single & Dual Output DC/DC Converters
KDC_NMVC2.G01 Page 3 of 4
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PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
PIN CONNECTIONS
Single output variants Dual output variants
14 Pin DIP 7 Pin SIP 14 Pin DIP 7 Pin SIP
Pin Function Pin Function Pin Function Pin Function
1-VIN 1+VIN 1-VIN 1+VIN
7NC 2-VIN 7NC 2-VIN
8+VOUT 5-VOUT 8+VOUT 5-VOUT
10 -VOUT 7+VOUT 9OV 6OV
14 +VIN 10 -VOUT 7+VOUT
14 +VIN
0.77 (19.50)
0.386
(9.80)
0.268
(6.80)
0.022 (0.55)
0.018 (0.45)
0.6 (15.24)
0.084
(2.13)
0.3
(7.62) 0.118 (0.30)
0.0079 (0.20)
0.043
(1.09)
0.181 (4.60)
0.142 (3.60)
0.1 (2.54)
1 7
14 10 9* 8
1 2 5 6* 7
† †
XYYWWi
NMV2405DC
0.77 (19.50)
0.236
(6.00)
0.394
(10.00)
0.181 (4.60)
0.142 (3.60)
0.0118 (0.30)
0.0079 (0.20)
0.6 (15.24)
0.049 (1.25)
0.074±0.02 (1.88±0.50)
0.0216 (0.55)
0.0177 (0.45)
0.1 (2.54)
NMV2415SC
XYYWWi
0.0216 (0.55)
0.0177 (0.45)
†
0.303 (7.70) for 48V variants
0.300 (7.50) for 48V variants
* Pin not fitted on single output variants.
All dimensions in inches ±0.01 (mm ±0.25mm). All pins on a 0.1 (2.54) pitch and within ±0.01 (0.25) of true position. Weight: 2.11g (DIP and SIP)
DIP package SIP package
NMV 24V & 48V Series
3kVDC Isolated 1W Single & Dual Output DC/DC Converters
KDC_NMVC2.G01 Page 4 of 4
All enquiries: www.murata-ps.com/support
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice. © 2012 Murata Power Solutions, Inc.
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to: http://www.murata-ps.com/requirements/
www.murata-ps.com/locations
PACKAGE SPECIFICATIONS (continued)
RECOMMENDED FOOTPRINT DETAILS
TUBE OUTLINE DIMENSIONS
RoHS COMPLIANCE INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300°C for 10 seconds. The pin termination finish
on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types
in this series are backward compatible with Sn/Pb soldering systems.
For further information, please visit www.murata-ps.com/rohs
Unless otherwise stated all dimensions in inches (mm) ±0.5mm.
Tube length (14 Pin DIP) : 20.47 (520mm ±2mm).
Tube length (7 Pin SIP) : 20.47 (520mm ±2mm).
14 Pin DIP Tube 7 Pin SIP Tube
14 Pin DIP Package 7 Pin SIP Package
Tube Quantity : 25
)0-&4
)0-&4
*Hole not required for single output variants.
