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NMJ Series
5.2kVDC Isolated 1W DC/DC Converters
ISOLATION CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
Max.
Units
Isolation test voltage
Resistance
Flash tested for 1 second
Viso= 500VDC
5200
1
VDC
GΩ
GENERAL CHARACTERISTICS
Parameter
Switching frequency
Conditions
Single output
Dual output
Min.
Typ.
45
70
Max.
Units
kHz
TEMPERATURE CHARACTERISTICS
Parameter
Speci?cation
Storage
Conditions
All output types
Min.
-40
-55
Typ.
Max.
60
130
Units
°C
Case Temperature above ambient
Cooling
All output types
Free air convection
33
TEMPERATURE DERATING GRAPH
1.5
TOLERANCE ENVELOPE
+10%
TOLERANCE ENVELOPE, 3.3V in, 3V out type only
+9%
o d Line
o d Lin
1.0
60oC
+6%
V NOM
T y pic al L a
+2.5%
-4%
+1%
V NOM
T y pic al L
a
e
+1%
0.5
Safe Operating Area
-7.5%
-7%
-7%
-15%
0
-40
0 40
Ambient Temperature (oC)
80
10
25 50 75
Output Load Current (%)
100
10
25 50 75
Output Load Current (%)
100
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 speci?ed time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
Murata Power Solutions NMJ series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 5.2kVDC for 1 second.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
The NMJ series has been recognized by Underwiters Laboratory to 300Vrms for Supplementary Insulation and 150Vrms for Reinforced Insulation.
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. We therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be
reduced by 20% from speci?ed test voltage.
SAFETY APPROVAL
The NMJ series has been recognised by Underwriters Laboratory (UL) to UL 60950 for supplementary insulation up to 300Vrms and reinforced insulation up to 150Vrms at a
maximum ambient temperature of 60oC. File number E151252 applies.
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 ?nish
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
www.murata-ps.com/support
KDC_NMJ.G05 Page 2 of 6
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