MEJ1 Series Datasheet by Murata Power Solutions Inc.

Murcia Power Solulions ./ r2? m

MEJ1 Series

5.2kVDC Isolated 1W DC/DC Converters

KDC_MEJ1_E01 Page 1 of 9

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SELECTION GUIDE

Order Code

Nominal Input

Voltage

Output Voltage

Output Current

Input Current

(Typ)

Load Regulation

(Typ)

Load Regulation

(Max)

Ripple & Noise

(Typ)3

Ripple & Noise

(Max)3

Efﬁciency

(Min)

Efﬁciency

(Typ)

MTTF1

V V mA % mVp-p % kHrs

Single

MEJ1S0303SC 3.3 3.3 303 410 8.5 11 42 55 67 70 3653

MEJ1S0305SC 3.3 5 200 400 9 10 33 45 68 71.5 3810

MEJ1S0503SC 5 3.3 303 280 6.5 8 20 40 66 69 4117

MEJ1S0505SC 5 5 200 270 5.5 7 24 40 68 72 4082

MEJ1S0509SC 5 9 111 265 4.5 5 20 40 70 74 3939

MEJ1S0512SC 5 12 83 260 4.5 7 22 40 71 74 3816

MEJ1S0515SC 5 15 66 260 5 6 22 40 72 75 3412

MEJ1S1203SC 12 3.3 303 110 6 7 25 45 69 72 3461

MEJ1S1205SC 12 5 200 110 5 6 21 40 71 74.5 3319

MEJ1S1209SC 12 9 111 105 4 5 18 40 73 76.5 3218

MEJ1S1212SC 12 12 83 105 3.5 5 19 40 73 76.5 3494

MEJ1S1215SC 12 15 66 105 4 5 16 40 73 77 3150

MEJ1S1505SC 15 5 200 90 5 6 23 45 70 74 3048

MEJ1S1509SC 15 9 111 85 4 5 18 40 72 76 2963

MEJ1S1512SC 15 12 83 85 4 5 20 40 72 76.5 2733

MEJ1S1515SC 15 15 66 85 4 5 19 35 73 76.5 2333

MEJ1S2405SC 24 5 200 55 5 6 23 40 71 75 3353

MEJ1S2409SC 24 9 111 55 4 7 17 40 72 77 2940

MEJ1S2412SC 24 12 83 55 4 5 19 40 72 78 2987

MEJ1S2415SC 24 15 66 55 3.5 5 17 40 74 78 2517

Dual

MEJ1D0503SC 5 ±3.3 ±151 280 6 8 19 40 67 70 4511

MEJ1D0505SC 5 ±5 ±100 275 5 6 23 35 69 72 4012

MEJ1D0509SC 5 ±9 ±55 265 4 6 16 35 69 74 3492

MEJ1D0512SC 5 ±12 ±42 260 4 5 15 30 72 74.5 3485

MEJ1D0515SC 5 ±15 ±33 260 4 5 13 35 71 75.5 2844

MEJ1D1203SC 12 ±3.3 ±151 110 5.5 6 19 40 70 73 3461

MEJ1D1205SC 12 ±5 ±100 110 4.5 5 18 40 72 75.5 3317

MEJ1D1209SC 12 ±9 ±55 110 4 5 15 35 73 77 2908

MEJ1D1212SC 12 ±12 ±42 110 3.5 5 14 30 74 76.5 2911

MEJ1D1215SC 12 ±15 ±33 110 4 5 11 35 73 77 2713

MEJ1D1505SC 15 ±5 ±100 90 4.5 5 19 40 72 75 3274

MEJ1D1509SC 15 ±9 ±55 85 4 5 14 35 73 76.5 3229

MEJ1D1512SC 15 ±12 ±42 85 3.5 5 13 35 73 77 2872

MEJ1D1515SC 15 ±15 ±33 85 3.5 5 20 35 73 76.5 2440

MEJ1D2405SC 24 ±5 ±100 55 4.5 5 19 40 72 76.5 3316

MEJ1D2409SC 24 ±9 ±55 55 3.5 5 17 35 73 78 3208

MEJ1D2412SC 24 ±12 ±42 55 3.5 5 12 35 74 78 3362

MEJ1D2415SC 24 ±15 ±33 55 3.5 5 14 35 74 78.5 2697

INPUT CHARACTERISTICS

Parameter Conditions Min. Typ. Max. Units

Voltage range

Continuous operation, 3V input types 2.97 3.3 3.63

Continuous operation, 5V input types 4.5 5 5.5

Continuous operation, 12V input types 10.8 12 13.2

Continuous operation, 15V input types 13.5 15 16.5

Continuous operation, 24V input types 21.6 24 26.4

Input reﬂected ripple

3.3V input types 40

5V input types 24

12V & 15V input types 12

24V input types 8

1. Calculated using MIL-HDBK-217 FN2 calculation model with nominal input voltage at full load.

2. See safety approvals section for limitations of use.

3. See ripple & noise test method.

All speciﬁcations typical at TA=25°C, nominal input voltage and rated output current unless otherwise speciﬁed.

FEATURES

Basic/supplementary isolation to

UL 609502

 ANSI/AAMI ES60601-1

Single and dual outputs

UL 94V-0 package material

SIP package style

5.2kVDC isolation ‘Hi Pot Test’

3.3V, 5V, 12V, 15V & 24V inputs

3.3V, 5V, 9V, 12V & 15V output

Internal SMD construction

Fully encapsulated with toroidal magnetics

Pin compatible with the MEV, NMV, NMK,

MEJ2, & NMJ series

PRODUCT OVERVIEW

The MEJ1 series are single and dual output DC/

DC converters in a 7 pin SIP package style offering

an isolation and insulation upgrade path from

the NMV & MEV1 series’. The MEJ1 series has

UL60950 and ANSI/AAMI ES60601-1 recognition,

which makes it ideal for applications where safety

and miniaturisation are of paramount importance.

muRatn Murcia Power Solutions

MEJ1 Series

5.2kVDC Isolated 1W DC/DC Converters

KDC_MEJ1_E01 Page 2 of 9

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OUTPUT CHARACTERISTICS

Parameter Conditions Min. Typ. Max. Units

Rated Power2TA=-40ºC to 85ºC 1W

Voltage Set Point Accuracy See tolerance envelopes

Line regulation High VIN to low VIN 1.1 1.2 %/%

ABSOLUTE MAXIMUM RATINGS

Short-circuit protection 48 Hours

Lead temperature 1mm from case for 10 seconds 260°C

Input voltage VIN, MEJ1x03xxSC 5V

Input voltage VIN, MEJ1x05xxSC 7V

Input voltage VIN, MEJ1x12xxSC 15V

Input voltage VIN, MEJ1x15xxSC 18V

Input voltage VIN, MEJ1x24xxSC 28V

ISOLATION CHARACTERISTICS

Parameter Conditions Min. Typ. Max. Units

Isolation test voltage

Production tested for 1 second 5200

VDC

Qualifcation tested for 1 second 7000

Qualifcation tested for 1 minute 5200

Resistance Viso= 500VDC 1GΩ

Isolation capacitance 3pF

GENERAL CHARACTERISTICS

Parameter Conditions Min. Typ. Max. Units

Switching frequency All types 50 kHz

TEMPERATURE CHARACTERISTICS

Parameter Conditions Min. Typ. Max. Units

Speciﬁcation All output types (see safety approval section for limitations) -40 85

°C

Storage -55 125

Case Temperature above ambient

MEJ1S1212SC, MEJ1S1512SC, MEJ1S2412SC, MEJ1D1215SC, MEJ1D1512SC,

MEJ1D2412SC, MEJ1D2415SC, MEJ1S1215SC, MEJ1S1509SC, MEJ1S2409SC 13

MEJ1D1205SC, MEJ1D1209SC, MEJ1D2405SC, MEJ1D2409SC, MEJ1S1209SC,

MEJ1S1515SC, MEJ1S2415SC, MEJ1D1212SC, MEJ1D1509SC, MEJ1S0515SC,

MEJ1S2405SC, MEJ1D0512SC, MEJ1D0515SC, MEJ1D1515SC, MEJ1S1505SC ,

MEJ1D0505SC, MEJ1D0509SC, MEJ1D1203SC, MEJ1D1505SC, MEJ1S0509SC,

MEJ1S0512SC, MEJ1S1205SC

MEJ1S0505SC, MEJ1S1203SC, MEJ1D0503SC, MEJ1S0303SC, MEJ1S0305SC,

MEJ1S0503SC 21

Cooling Free air convection

TEMPERATURE DERATING GRAPH

400

-40

0.2

0.5

1.0

Ambient Temperature (ºC)

Output Power (W)

Safe

Operating Area

Murcia Power Solutions

MEJ1 Series

5.2kVDC Isolated 1W DC/DC Converters

KDC_MEJ1_E01 Page 3 of 9

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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 MEJ1 series of DC/DC converters are all 100% production tested at 5.2kVDC for 1 second and qualifcation tested at 7kVDC for 1 second,

5.2kVDC for 1minute.

A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”

The MEJ1 series has been recognized by Underwiters Laboratory for various voltages, please see safety approval section below.

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.

SAFETY APPROVAL

ANSI/AAMI ES60601-1

The MEJ1 series has been tested by Underwriters Laboratory (UL) to meet ANSI/AAMI ES60601-1 medical safety standard providing the following MOOP (means of operator

protection), in a maximum ambient temperature of 85°C and/or case temperature limit of 130°C (case temperature measured on the face opposite the pins): 1 MOOP based upon

a working voltage of 200 Vrms max and 280 Vpk max., between Primary and Secondary and between Primary and its Enclosure. File Number E202895 applies.

UL 60950

The MEJ1 series has been recognized by Underwriters Laboratory (UL) to UL 60950 for basic/supplementary insulation to a working voltage of 250Vrms in a maximum ambient

temperature of 85°C and/or case temperature limit of 130°C (case temperature measured on the face opposite the pins). File number E151252 applies.

FUSING

The MEJ1 Series of converters are not internally fused so to meet the requirements of UL an anti-surge input line fuse should always be used with ratings as deﬁned below.

MEJ1x03xxSC 1A

MEJ1x05xxSC 1A

MEJ1x12xxSC 500mA

MEJ1x15xxSC 500mA

MEJ1x24xxSC 250mA

All fuses should be UL recognized and rated to at least the maximum allowable DC input voltage.

RoHS COMPLIANCE INFORMATION

This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260ºC 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

Murulo Power Solutions Iekm- mum Simply m n 1 (nu lnnmv ~ m Innmv Itmanﬂm m 1 7mm, #3 EM

MEJ1 Series

5.2kVDC Isolated 1W DC/DC Converters

KDC_MEJ1_E01 Page 4 of 9

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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.

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

Start-up time Start-up time

s s

MEJ1S0303SC 900 MEJ1D0503SC 700

MEJ1S0305SC 2000 MEJ1D0505SC 1600

MEJ1S0503SC 500 MEJ1D0509SC 3700

MEJ1S0505SC 2000 MEJ1D0512SC 4200

MEJ1S0509SC 3200 MEJ1D0515SC 7000

MEJ1S0512SC 7500 MEJ1D1203SC 600

MEJ1S0515SC 10500 MEJ1D1205SC 1200

MEJ1S1203SC 600 MEJ1D1209SC 3600

MEJ1S1205SC 1200 MEJ1D1212SC 3900

MEJ1S1209SC 2900 MEJ1D1215SC 6000

MEJ1S1212SC 2900 MEJ1D1505SC 1200

MEJ1S1215SC 3900 MEJ1D1509SC 3200

MEJ1S1505SC 1100 MEJ1D1512SC 3300

MEJ1S1509SC 2400 MEJ1D1515SC 4800

MEJ1S1512SC 2700 MEJ1D2405SC 1100

MEJ1S1515SC 3800 MEJ1D2409SC 2000

MEJ1S2405SC 1700 MEJ1D2412SC 3300

MEJ1S2409SC 2300 MEJ1D2415SC 6400

MEJ1S2412SC 2200

MEJ1S2415SC 3600

Typical Start-Up Wave Form

OSCILLOSCOPE

Y INPUT

SUPPLY

C1 C2 C3 R1 T1 R2

Input Output

DC/DC Converter

R LOAD

MEJ1 Series

5.2kVDC Isolated 1W DC/DC Converters

KDC_MEJ1_E01 Page 5 of 9

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TOLERANCE ENVELOPES

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.

DUAL 1203,1515, 2412, SINGLE 0303, 0305, 1203 DUAL 1209, 1509, 2409

DUAL 0515, SINGLE 1515, 2415 DUAL 1512, SINGLE 1212, 1512, 2412

DUAL 0512, SINGLE 1209, 1509, DUAL 1212, 1215, 2415, SINGLE 0509, 0512, 1215, 2409

+5%

-1%

Output Load Current (%)

Output Voltage

-7%

+2%

100

+3%

+1%

Output Load Current (%)

Output Voltage

-3%

100

+2%

-1%

Output Load Current (%)

Output Voltage

-5%

100

+2%

Output Load Current (%)

Output Voltage

-4%

100

+2%

+1%

Output Load Current (%)

Output Voltage

-4%

-1%

100

+5%

-1%

Output Load Current (%)

Output Voltage

-4%

+2%

100

Murcia Power Solutions

MEJ1 Series

5.2kVDC Isolated 1W DC/DC Converters

KDC_MEJ1_E01 Page 6 of 9

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TOLERANCE ENVELOPES

SINGLE 1205, 1505, 2405, 0515 DUAL 1205, 0505, 1505, 2405

DUAL 0509, 0503, SINGLE 0503, 0505

+4%

+2%

Output Load Current (%)

Output Voltage

-3%

100

+5%

+3%

Output Load Current (%)

Output Voltage

-2%

+1%

100

+6%

+1%

Output Load Current (%)

Output Voltage

-4%

+1%

100

Murulo Power Solutions

MEJ1 Series

5.2kVDC Isolated 1W DC/DC Converters

KDC_MEJ1_E01 Page 7 of 9

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EFFICIENCY VS LOAD Single Output

3.3V Input 5V Input

12V Input 15V Input

24V Input

10 20 30 40 50 70 1009080600

Efficiency (%)

Load (%)

MEJ1S1212SC

MEJ1S1209SC

MEJ1S1215SC

MEJ1S1203SC

MEJ1S1205SC

10 20 30 40 50 70 1009080600

Efficiency (%)

Load (%)

MEJ1S1512SC

MEJ1S1509SC

MEJ1S1515SC

MEJ1S1505SC

10 20 30 40 50 70 1009080600

Efficiency (%)

Load (%)

MEJ1S2412SC

MEJ1S2409SC

MEJ1S2415SC

MEJ1S2405SC

10 20 30 40 50 70 1009080600

Efficiency (%)

Load (%)

MEJ1S0305SC

MEJ1S0303SC

10 20 30 40 50 70 1009080600

Efficiency (%)

Load (%)

MEJ1S0512SC

MEJ1S0509SC

MEJ1S0515SC

MEJ1S0503SC

MEJ1S0505SC

Murulo Power Solutions

MEJ1 Series

5.2kVDC Isolated 1W DC/DC Converters

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EFFICIENCY VS LOAD Dual Output

5V Input 12V Input

15V Input 24V Input

10 20 30 40 50 70 1009080600

Efficiency (%)

Load (%)

MEJ1D1212SC

MEJ1D1209SC

MEJ1D1215SC

MEJ1D1205SC

MEJ1D1203SC

10 20 30 40 50 70 1009080600

Efficiency (%)

Load (%)

MEJ1D1512SC

MEJ1D1509SC

MEJ1D1515SC

MEJ1D1505SC

10 20 30 40 50 70 1009080600

Efficiency (%)

Load (%)

MEJ1D2412SC

MEJ1D2409SC

MEJ1D2415SC

MEJ1D2405SC

10 20 30 40 50 70 1009080600

Efficiency (%)

Load (%)

MEJ1D0512SC

MEJ1D0509SC

MEJ1D0515SC

MEJ1D0505SC

MEJ1D0503SC

Murulo Power Solutions V j ET x ' nuns- 4 if 1 z 5 c- 7 j H JL J L: JL V C L

MEJ1 Series

5.2kVDC Isolated 1W DC/DC Converters

KDC_MEJ1_E01 Page 9 of 9

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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

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

Single Output

Pin Function

1 +Vin

2 -Vin

5 -Vout

7 +Vout

Dual Output

Pin Function

1+VIN

2-VIN

5-VOUT

6* OV

7+V

OUT

TUBE OUTLINE DIMENSIONS RECOMMENDED FOOTPRINT DETAILS

Weight: 4.3g

6.00

(0.236)

5.00 (0.197)

5.20 (0.205)

1.50 (0.059)

0.6±0.15

14.20 (0.559)

(0.024±0.006)

Unless otherwise stated all dimensions in mm ±0.5mm (inches ±0.02).

Tube length : 20.669±0.079 (525mm±2mm). Tube Quantity : 25

19.65 [0.774] MAX 10.05 [0.396] MAX

2.93

2.13 [0.115

0.084 ]

2.95

1.62 [0.116

0.064 ]

0.50 [0.020]±0.05

4.10±0.50 [0.161±0.020]

12.65 [0.498] MAX

2.54 [0.100]

0.40 [0.016] MIN

15.24 [0.600]

0.25 [0.010]±0.05

15 6* 7

MEJ1D0503SC

XYYWW

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.

2.54 [0.100]

x5 HOLES Ø 1.15

1.00 [Ø0.045

0.039 ]

* Hole not required for single output variants.

All dimensions in mm ±0.25mm (inches ±0.01).

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