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NMR113C Datasheet(PDF) 2 Page - Murata Manufacturing Co., Ltd.

Part # NMR113C
Description  Isolated 1W Single Output DC/DC Converters
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Manufacturer  MURATA [Murata Manufacturing Co., Ltd.]
Direct Link  http://www.murata.com
Logo MURATA - Murata Manufacturing Co., Ltd.

NMR113C Datasheet(HTML) 2 Page - Murata Manufacturing Co., Ltd.

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NMR Series
Isolated 1W Single Output DC/DC Converters
KDC_NMR.D02 Page 2 of 5
www.murata-ps.com/support
GENERAL CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
Max.
Units
Switching frequency
5V input types
110
kHz
12V input types
160
15V input types
90
24V input types
80
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
Max.
Units
Specification
All output types
-40
85
°C
Storage
-50
130
Case Temperature above ambient
5V output types
33
All other output types
28
Cooling
Free air convection
TOLERANCE ENVELOPES
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 NMR series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1kVDC for 1 second.
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 NMR 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 NMR 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.
+7%
Output Load Current (%)
+4.5%
-5%
-2.5%
0%
Typical
Load
Line
V
NOM
100
75
50
25
10
+4%
Output Load Current (%)
+2%
-3%
-1%
+1%
Typical Load
Line
V
NOM
100
75
50
25
10
+10%
Output Load Current (%)
+5%
-7.5%
-2.5%
+2.5%
Typical
Load
Line
V
NOM
100
75
50
25
10
+2%
NMR118
NMR113, NMR 114, NMR119, NMR120
All other types
RoHS COMPLIANCE INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300ºC for 10 seconds. The pin termination finish
on this product series is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The series is backward compatible with Sn/Pb soldering
systems.
For further information, please visit www.murata-ps.com/rohs
The voltage tolerance envelope shows typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage variation due to
changes in output loading.


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