NTE Series
Isolated 1W Single Output SM DC/DC Converters
KDC_NTE.K05 Page 1 of 6
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SELECTION GUIDE
Order Code1
Nominal
Input
Voltage
Output
Voltage
Output
Current
Input
Current at
Rated Load
Efficiency Isolation
Capacitance MTTF2
V V mA mA % pF kHrs
NTE0303MC 3.3 3.3 303 410 73 30 5348
NTE0305MC 3.3 5 200 390 78 35 3847
NTE0309MC 3.3 9 111 400 77 31 3134
NTE0312MC 3.3 12 83 400 77 28 3473
NTE0315MC 3.3 15 66 400 77 29 2473
NTE0503MC 5 3.3 303 270 74 40 5515
NTE0505MC 5 5 200 294 68 35 6857
NTE0505MEC 5 5 200 260 77 40 3933
NTE0506MC 5 6 167 278 72 39 6677
NTE0509MC 5 9 111 267 75 43 5501
NTE0512MC 5 12 83 260 77 42 3957
NTE0515MC 5 15 66 256 78 44 2747
NTE1205MC 12 5 200 124 67 47 4683
NTE1209MC 12 9 111 114 73 77 4008
NTE1212MC 12 12 83 113 74 88 3121
NTE1215MC 12 15 66 111 75 95 2316
INPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Voltage range
Continuous operation, 3.3V input types 2.97 3.3 3.63
VContinuous operation, 5V input types 4.5 5.0 5.5
Continuous operation, 12V input types 10.8 12.0 13.2
Reflected ripple current 30 47 mA p-p
ISOLATION CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Isolation voltage Flash tested for 1 second 1000 VDC
Resistance Viso= 1000VDC 10 GΩ
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Switching frequency All output types 110 kHz
ABSOLUTE MAXIMUM RATINGS
Internal power dissipation 600mW
Input voltage VIN, NTE03 types 5.5V
Input voltage VIN, NTE05 types 7V
Input voltage VIN, NTE12 types 15V
1. If components are required in tape and reel format suffix order code with -R, e.g. NTE0505MC-R.
2. Calculated using MIL-HDBK-217 FN2 calculation model with nominal input voltage at full load.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
PRODUCT OVERVIEW
The NTE series of miniature surface mounted
DC/DC Converters employ leadframe technol-
ogy and transfer moulding techniques to bring
all of the benefits of IC style packaging to hybrid
circuitry. The co-planarity of the pin positions is
based upon IEC 191-6:1990. The devices are
suitable for all applications where high volume
production is envisaged.
FEATURES
RoHS compliant
Lead frame technology
Single isolated output
1kVDC Isolation
Efficiency up to 78%
Power density 1.8W/cm3
Wide temperature performance at full
1 Watt load, –40°C to 85°C
UL 94V-0 Package material
Footprint over pins 1.37cm2
3.3V, 5V & 12V Input
3.3V, 5V, 9V, 12V & 15V output
No heatsink required
Internal SMD construction
Toroidal magnetics
MTTF up to 6.8 million hours
Custom solutions available
Multi-layer ceramic capacitors
NTE Series
Isolated 1W Single Output SM DC/DC Converters
KDC_NTE.K05 Page 2 of 6
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OUTPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Rated power TA=-40°C to 85°C 1.0 W
Voltage set point accuracy See tolerance envelope
Line regulation High VIN to low VIN 1.0 1.2 %/%
Load regulation1
10% load to rated load, 03XXMC, 0503MC, 0505MEC 10 14
%
10% load to rated load, 0505MC & 1205MC 12.8 15
10% load to rated load, 0506MC 9.2 10
10% load to rated load, 0509MC & 1209MC 8.3 9.0
10% load to rated load, 0512MC & 1212MC 6.8 7.5
10% load to rated load, 0515MC & 1215MC 6.3 7.0
Ripple and noise
BW=DC to 20MHz, 03XXMC, 0503MC, 0505MEC 40 60
mV p-p
BW=DC to 20MHz, 0505MC & 1205MC 62 85
BW=DC to 20MHz, 0506MC 103 170
BW=DC to 20MHz, 0509MC & 1209MC 49 75
BW=DC to 20MHz, 0512MC & 1212MC 39 65
BW=DC to 20MHz, 0515MC & 1215MC 38 76
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Specification All output types -40 85
°C
Storage -55 125
Case temperature rise above
ambient
0305MC, 0309MC, 0315MC 25
0303MC, 0312MC, 0503MC, 0505MEC, 0509MC, 0512MC, 0515MC 30
0505MC, 1205MC 43
1209MC, 1212MC, 1215MC 40
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 NTE 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 NTE 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 NTE 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.
1. 12V input types have typically 3% less load regulation change.
TEMPERATURE DERATING GRAPH
150100
50
0
-40
0
0.5
1.0
1.5
Safe Operating Area
85°C
Ambient Temperature (°C)
Output Power (W)
NTE Series
Isolated 1W Single Output SM DC/DC Converters
KDC_NTE.K05 Page 3 of 6
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TOLERANCE ENVELOPES
3.3V output types. All other types.
100
75
50
25
10
-7%
+9%
Output Load Current (%)
Output Voltage
+1%
-15%
-7%
+1%
Typical Load Line
VNOM
+10%
Output Load Current (%)
Output Voltage
+5%
-7.5%
-2.5%
+2.5%
Typical Load Line
VNOM
100
75
50
25
10
APPLICATION NOTES
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%.
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.
Typical Start-Up Wave Form
Start-up time Start-up time
μs μs
NTE0303MC 437 NTE0506MC 7200
NTE0305MC 1359 NTE0509MC 3146
NTE0309MC 3435 NTE0512MC 4960
NTE0312MC 6590 NTE0515MC 7740
NTE0315MC 7625 NTE1205MC 895
NTE0503MC 533 NTE1209MC 2150
NTE0505MC 1368 NTE1212MC 3640
NTE0505MEC 721 NTE1215MC 7180
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.
RoHS COMPLIANCE, MSL AND PSL INFORMATION
This series is compatible with RoHS soldering systems and is also backward compatible with Sn/Pb soldering systems.
The NTE series has a process, moisture, and reflow sensitivity classification of MSL1 PSL R7F as defined in J-STD-020
and J-STD-075. This translates to: MSL1 = unlimited floor life, PSL R7F = Peak reflow temperature 245°C with a
limitation on the time above liquidus (217°C) which for this series is 60sec max. The pin termination finish on this product
series is Gold with a plating thickness of 0.05 microns minimum.
For further information please visit www.murata-ps.com/rohs
NTE Series
Isolated 1W Single Output SM DC/DC Converters
KDC_NTE.K05 Page 4 of 6
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APPLICATION NOTES (continued)
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.
DC
DC
L
CLoad
Power
Source
Inductor Capacitor
L, μH SMD Through Hole C, μF
NTE0303MC 10 82103C 11R103C 4.7
NTE0305MC 47 82473C 11R103C 4.7
NTE0309MC 22 82223C 11R223C 2.2
NTE0312MC 10 82103C 11R103C 1
NTE0315MC 47 82473C 11R473C 1
NTE0503MC 10 82103C 11R103C 4.7
NTE0505MC 47 82473C 11R473C 4.7
NTE0505MEC 47 82473C 11R473C 4.7
NTE0506MC 10 82103C 11R103C 4.7
NTE0509MC 22 82223C 11R223C 2.2
NTE0512MC 47 82473C 11R473C 1
NTE0515MC 47 82473C 11R473C 1
NTE1205MC 47 82473C 11R473C 4.7
NTE1209MC 22 82223C 11R223C 2.2
NTE1212MC 47 82473C 11R473C 1
NTE1215MC 47 82473C 11R473C 1
NTE Series
Isolated 1W Single Output SM DC/DC Converters
KDC_NTE.K05 Page 5 of 6
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PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS PIN CONNECTIONS
Pin Function
1-VIN
3+VIN
5NA
7-V
OUT
8+VOUT
10 NA
12 NA
14 NA
NA - Not available for electrical connection.
RECOMMENDED FOOTPRINT DETAILS TUBE OUTLINE DIMENSIONS
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. Weight: 1.21g
x8 PINS
1.50 [0.059]
1.20 [0.047]
0.50 [0.020]
11.20
10.40
[
0.441
0.409
]
7.70 [0.303]
2.54 [0.100]
(6.35)
5.85
[
(0.250)
0.230
]
6.60
(5.95)
[
0.260
(0.234)
]
2.79 [0.110] MAX
1
0.2 [0.008] S
±5.0°
0.2 [0.008] S
(1.875 [0.074] MAX)
0.10 [0.004] S
0.25
0.10 [0.010
0.004]SEATING PLANE
S
x8 PINS
0.75
0.45
[
0.030
0.018
]
7
2.10 [0.083]
DETAIL A
0.30
0.20
[0.012
0.008]
P
7.62 [0.300]
12.7 [0.500]
14 8
DETAIL A
REFERENCE
PLANE
x8 PINS
K1533
NTE0505MC
Unless otherwise stated all dimensions in mm±0.5mm (inches ±0.02).
Tube length : 475±2.0 (18.70±0.07). Tube Quantity : 35
9.40 (0.370)
2.10 (0.083)
6.70 (0.264)
14.35 (0.565)
0.60±0.15 (0.024±0.006)
7.62 [0.300]
9.40 [0.370]
x8 PLACES
2.30 [0.091]
x8 PLACES
1.00 [0.039]
2.54 [0.100]
All pins on a 2.54mm pitch.
Unless otherwise stated all dimensions in mm (inches) ±0.5mm.
NTE Series
Isolated 1W Single Output SM DC/DC Converters
KDC_NTE.K05 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. © 2015 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/
TAPE & REEL SPECIFICATIONS
REEL OUTLINE DIMENSIONS TAPE OUTLINE DIMENSIONS
REEL PACKAGING DETAILS
13.20
(0.52)
0.60 (0.02) MAX
16.00 (0.63)
6.60
(0.26)
11.60
(0.46)
DIRECTION OF UNREELING
1.75(0.07)
11.50
(0.45)
24.00±0.30
(0.94±0.04)
4.00
(0.16)
2.00
(0.08)
1.50 (Ø0.06) -0.00 (-0.00)
+0.004 (+0.10)
330
(12.99) MAX
100
(3.94) MIN
13.00±0.25
(0.51±0.009)
30.40 (1.20) MAX
(AT HUB SECTION)
Ø
Ø
24.40 (0.96)
2.00(+0.08)
-0.00 (0.00)
TRAILER SECTION
160 (6.30) MIN
GOODS ENCLOSURE
SECTION
LEADER SECTION
400 (15.75) MIN
CARRIER TAPE START
100 (3.94) MIN
XYYWW
NTE0505MC
XYYWW
XYYWW
NTE0505MC
NTE0505MC
Product Orientation
Pin 1, located nearest to
carrier drive sprocket.
Reel Quantity : 500
