NMJ Series
5.2kVDC Isolated 1W DC/DC Converters
KDC_NMJ.G04 Page 1 of 6
www.murata-ps.com
www.murata-ps.com/support
For full details go to
www.murata-ps.com/rohs
　
Contact Factory
SELECTION GUIDE
Order Code
Nominal
Input
Voltage
Output
Voltage Output
Current Ripple &
Noise3Efficiency
(Min.) Isolation
Capacitance MTTF1
V V mA mV p-p % pF kHrs
NMJ0505SC 5 ±5 ±100 40 60 3.0 4950
NMJ0509SC 5 ±9 ±55 30 65 3.0 3832
NMJ0512SC 5 ±12 ±42 20 65 3.0 2770
NMJ0515SC 5 ±15 ±33 20 65 3.0 1903
NMJ1205SC 12 ±5 ±100 40 60 3.0 3688
NMJ1209SC 12 ±9 ±55 30 65 3.0 3029
NMJ1212SC 12 ±12 ±42 20 65 3.0 2324
NMJ1215SC 12 ±15 ±33 20 65 3.0 1682
NMJ0303SAC 3.3 3.3 303 70 66 3.0 13780
NMJ0503SAC 5 3.3 303 60 64 3.0 13460
NMJ0505SAC 5 5 200 50 68 3.0 13360
NMJ0509SAC 5 9 111 50 72 3.0 12700
NMJ0512SAC 5 12 83 50 71 3.0 11490
NMJ0515SAC 5 15 66 50 71 3.0 9980
NMJ1205SAC 12 5 200 50 69 3.0 8447
NMJ1209SAC 12 9 111 50 73 3.0 8176
NMJ1212SAC 12 12 83 50 73 3.0 7660
NMJ1215SAC 12 15 66 50 74 3.0 6950
INPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Voltage range
Continuous operation, 3V input types 2.97 3.3 3.63
V
Continuous operation, 5V input types 4.5 5 5.5
Continuous operation, 12V input types 10.8 12 13.2
OUTPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Rated Power2TA=-40ºC to 60ºC 1W
Voltage Set Point Accuracy See tolerance envelopes
Line regulation High VIN to low VIN 1.0 1.2 %/%
Load regulation
Single outputs
10% load to rated load, xx03 10.0 15.0
%
10% load to rated load, 0505 7.0 10.0
10% load to rated load, 0509, 0512, 0515 6.0 10.0
10% load to rated load, 12xx 5.0 7.0
Load regulation
Dual outputs
10% load to rated load, 5V output types 10.0 15.0
%
10% load to rated load, 9V output types 6.0 10.0
10% load to rated load, 12V output types 6.0 10.0
10% load to rated load, 15V output types 6.0 10.0
Zero Load Power Consumption All types 250 mW
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds 300°C
Input voltage VIN, NMJ03 types 5V
Input voltage VIN, NMJ05 types 7V
Input voltage VIN, NMJ12 types 15V
1. Calculated using MIL-HDBK-217 FN2 calculation model with nominal input voltage at full load.
2. See derating graph.
3. See ripple & noise test method.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
FEATURES
RoHS compliant
UL 60950 recognized
Power density 0.42W/cm3
Wide temperature performance at full
1 watt load, –40°C to 60°C
Single and dual outputs
UL 94V-0 package material
No heatsink required
Footprint 1.91cm2
SIP package style
5.2kVDC isolation
3V, 5V & 12V input
3V, 5V, 9V, 12V and 15V output
Internal SMD construction
Fully encapsulated with toroidal magnetics
Pin compatible with the NMV series SIP
DC/DC converters
MTTF up to 13 million hours
Custom solutions available
PRODUCT OVERVIEW
The NMJ series are dual and single output
DC/DC converters in a 7 pin SIP package style
offering pin and functionality compatibility with
the NMV series SIP DC/DC converters. The NMJ
series is UL60950 recognized and suitable for
applications where safety and miniaturisation
are of paramount importance. Isolation barrier
approved for supplementary/reinforced insulation
- see page 2.
NMJ Series
5.2kVDC Isolated 1W DC/DC Converters
KDC_NMJ.G04 Page 2 of 6
www.murata-ps.com/support
TEMPERATURE DERATING GRAPH
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Specification All output types -40 60
°C
Storage -55 130
Case Temperature above ambient All output types 33
Cooling Free air convection
TOLERANCE ENVELOPE
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 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 specified test voltage.
80400-40
0
0.5
1.0
1.5
Safe Operating Area
Ambient Temperature (ºC)
Output Power (W)
60ºC
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 E179522 applies.
ISOLATION CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Isolation test voltage Flash tested for 1 second 5200 VDC
Resistance Viso= 500VDC 1GΩ
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Switching frequency Single output 45 kHz
Dual output 70
+10%
Output Load Current (%)
Output Voltage
+6%
-7.5%
-4%
+2.5%
Typical Load Line
100
75
50
25
10
VNOM
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
TOLERANCE ENVELOPE, 3.3V in, 3V out type only
100
75
50
25
10
-7%
+9%
Output Load Current (%)
Output Voltage
+1%
-15%
-7%
+1%
Typical Load Line
VNOM
NMJ Series
5.2kVDC Isolated 1W DC/DC Converters
KDC_NMJ.G04 Page 3 of 6
www.murata-ps.com/support
OUTPUT RIPPLE REDUCTION
By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max.
Component selection
Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended.
The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC/DC converter.
Inductor: The rated current of the inductor should not be less than that of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor should be
such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF (Self Resonant Frequency) should be >20MHz.
Inductor Capacitor
L, µH Through Hole SMD C, µF
3.3V single output types 22 22R223C 82223C 4.7
5V single output types 22 22R223C 82223C 4.7
9V single output types 47 22R473C 82473C 2.2
12V single output types 220 22R224C 82224C 0.47
15V single output types 220 22R224C 82224C 0.47
Inductor Capacitor
L, µH Through Hole SMD C, µF
5V dual output types 22 22R223C 82223C 4.70
9V dual output types 47 22R473C 82473C 2.2
12V dual output types 220 22R224C 82224C 0.47
15V dual output types 220 22R224C 82224C 0.47
DC
DC
L
L
C
C
Load
Load
Power
Source
+VOUT
OV
-VOUT
DC
DC
L
CLoad
Power
Source
Capacitive loading and start up
Typical start up times for this series, with a typical input voltage rise time of 2.2µs and output capacitance of 10µF, are shown in the table below. The product
series will start into a capacitance of 47µF with an increased start time, however, the maximum recommended output capacitance is 10µF.
Start-up time Start-up time
µs µs
NMJ0505SC 2530 NMJ0505SAC 1059
NMJ0509SC 7865 NMJ0509SAC 3454
NMJ0512SC 13080 NMJ0512SAC 7980
NMJ0515SC 21560 NMJ0515SAC 11505
NMJ1205SC 2770 NMJ1205SAC 1286
NMJ1209SC 20455 NMJ1209SAC 3548
NMJ1212SC 14475 NMJ1212SAC 7355
NMJ1215SC 22300 NMJ1215SAC 11535
NMJ0303SAC 530
NMJ0503SAC 576
Typical Start-Up Wave Form
NMJ Series
5.2kVDC Isolated 1W DC/DC Converters
KDC_NMJ.G04 Page 4 of 6
www.murata-ps.com/support
OUTPUT RIPPLE REDUCTION (continued)
SMD option 8200 Inductor Series Mechanical Dimensions Through hole option 2200R Inductor Series Mechanical Dimensions
For more information please visit www.murata-ps.com
332C
3.2 (0.126)
±0.3 (0.012)
2.5 (0.0984)
±0.2 (0.008)
2.0 (0.080)
±0.3 (0.012)
2.5 (0.098)
±0.2 (0.008)
0.7
(0.028)
Min.
Recommended pad layout
All dimensions in inches (mm). 0.118(3.00)
Ø1.20 +0.15
-0.00
Ø0.047 +0.006
-0.000
0.024±0.002
(0.60±0.05)
0.335±0.020
(8.5±0.50)
0.413 (10.50) Max.
1.614±0.130
(41.00±3.30)
1.772±0.130
(45.00±3.30)
0.283±0.020
(7.2±0.50)
103C
Recommended footprint
3.05 (0.120)
1.52
(0.060)
3.81 (0.15)
All dimensions in inches (mm).
Minimum load
The minimum load to meet datasheet specification is 10% of the full rated load across the specified input voltage range. Lower than 10% minimum loading will result in
an increase in output voltage, which may rise to typically double the specified output voltage if the output load falls to less than 5%.
NMJ Series
5.2kVDC Isolated 1W DC/DC Converters
KDC_NMJ.G04 Page 5 of 6
www.murata-ps.com/support
CHARACTERISATION TEST METHODS
Ripple & Noise Characterisation Method
Ripple and noise measurements are performed with the following test configuration.
C1 1µF X7R m ultilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter
C2 10µF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less
than 100m at 100 kHz
C3 100nF multilayer ceramic capacitor, general purpose
R1 450 resistor, carbon film, ±1% tolerance
R2 50 BNC termination
T1 3T of the coax cable through a ferrite toroid
RLOAD Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires
Measured values are multiplied by 10 to obtain the specified values.
Differential Mode Noise Test Schematic
OSCILLOSCOPE
Y INPUT
SUPPLY
C1 C2 C3 R1 T1 R2
Input Output
DC/DC Converter
R LOAD
+
+
-
-
NMJ Series
5.2kVDC Isolated 1W DC/DC Converters
KDC_NMJ.G04 Page 6 of 6
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/
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS PIN CONNECTIONS
Dual Output Single Output
Pin Function Pin Function
1+VIN 1+VIN
2-VIN 2-VIN
5-VOUT 5-VOUT
6OV 7+V
OUT
7+VOUT
RECOMMENDED FOOTPRINT DETAILS
TUBE OUTLINE DIMENSIONS
Weight: 4.3g
6.00
(0.236)
5.00 (0.197)
5.20 (0.205)
1.50 (0.059)
0.006±0.024
(0.15±0.60)
14.20 (0.559)
2.54 (0.1)
x5 HOLES Ø 0.10 (0.004)
1.15 (0.045)
1.00 (0.039)
2.54 (0.1)
*
Unless otherwise stated all dimensions in mm ±0.5mm (inches ±0.02).
Tube length : 525mm±2mm (20.669±0.079). Tube Quantity : 25
19.50 (0.77)
4.60 (0.18)
3.60 (0.14)
12.50 (0.49)
9.80
(0.39)
2.54 (0.1) 0.55 (0.022)
0.45 (0.018)
0.55 (0.022)
0.45 (0.018)
0.30 (0.012)
0.20 (0.008)
1.88±0.75 (0.074±0.03)
2.40 (0.094)
1256* 7
All dimensions in mm ±0.25mm (inches ±0.01). All pins on a 2.54 (0.1) pitch and within
±0.25 (0.01) of true position.
* Pin not fitted on single output variants.
* Hole not required for single output variants.
All dimensions in mm ±0.25mm (inches ±0.01).