MEJ1 Series www.murata-ps.com 5.2kVDC Isolated 1W DC/DC Converters FEATURES Basic/supplementary isolation to UL 609502 ANSI/AAMI ES60601-1 UL 94V-0 package material Single Single and dual outputs 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 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. Dual PRODUCT OVERVIEW MEJ1S0303SC MEJ1S0305SC MEJ1S0503SC MEJ1S0505SC MEJ1S0509SC MEJ1S0512SC MEJ1S0515SC MEJ1S1203SC MEJ1S1205SC MEJ1S1209SC MEJ1S1212SC MEJ1S1215SC MEJ1S1505SC MEJ1S1509SC MEJ1S1512SC MEJ1S1515SC MEJ1S2405SC MEJ1S2409SC MEJ1S2412SC MEJ1S2415SC MEJ1D0503SC MEJ1D0505SC MEJ1D0509SC MEJ1D0512SC MEJ1D0515SC MEJ1D1203SC MEJ1D1205SC MEJ1D1209SC MEJ1D1212SC MEJ1D1215SC MEJ1D1505SC MEJ1D1509SC MEJ1D1512SC MEJ1D1515SC MEJ1D2405SC MEJ1D2409SC MEJ1D2412SC MEJ1D2415SC mA 303 410 200 400 303 280 200 270 111 265 83 260 66 260 303 110 200 110 111 105 83 105 66 105 200 90 111 85 83 85 66 85 200 55 111 55 83 55 66 55 ±151 280 ±100 275 ±55 265 ±42 260 ±33 260 ±151 110 ±100 110 ±55 110 ±42 110 ±33 110 ±100 90 ±55 85 ±42 85 ±33 85 ±100 55 ±55 55 ±42 55 ±33 55 % 8.5 9 6.5 5.5 4.5 4.5 5 6 5 4 3.5 4 5 4 4 4 5 4 4 3.5 6 5 4 4 4 5.5 4.5 4 3.5 4 4.5 4 3.5 3.5 4.5 3.5 3.5 3.5 11 10 8 7 5 7 6 7 6 5 5 5 6 5 5 5 6 7 5 5 8 6 6 5 5 6 5 5 5 5 5 5 5 5 5 5 5 5 mVp-p 42 55 33 45 20 40 24 40 20 40 22 40 22 40 25 45 21 40 18 40 19 40 16 40 23 45 18 40 20 40 19 35 23 40 17 40 19 40 17 40 19 40 23 35 16 35 15 30 13 35 19 40 18 40 15 35 14 30 11 35 19 40 14 35 13 35 20 35 19 40 17 35 12 35 14 35 % 67 68 66 68 70 71 72 69 71 73 73 73 70 72 72 73 71 72 72 74 67 69 69 72 71 70 72 73 74 73 72 73 73 73 72 73 74 74 Contact Factory 70 71.5 69 72 74 74 75 72 74.5 76.5 76.5 77 74 76 76.5 76.5 75 77 78 78 70 72 74 74.5 75.5 73 75.5 77 76.5 77 75 76.5 77 76.5 76.5 78 78 78.5 MTTF1 Efficiency (Typ) Efficiency (Min) Ripple & Noise (Max)3 Ripple & Noise (Typ)3 Load Regulation (Max) Load Regulation (Typ) V 3.3 5 3.3 5 9 12 15 3.3 5 9 12 15 5 9 12 15 5 9 12 15 ±3.3 ±5 ±9 ±12 ±15 ±3.3 ±5 ±9 ±12 ±15 ±5 ±9 ±12 ±15 ±5 ±9 ±12 ±15 Input Current (Typ) V 3.3 3.3 5 5 5 5 5 12 12 12 12 12 15 15 15 15 24 24 24 24 5 5 5 5 5 12 12 12 12 12 15 15 15 15 24 24 24 24 Output Current Output Voltage Order Code Nominal Input Voltage SELECTION GUIDE kHrs 3653 3810 4117 4082 3939 3816 3412 3461 3319 3218 3494 3150 3048 2963 2733 2333 3353 2940 2987 2517 4511 4012 3492 3485 2844 3461 3317 2908 2911 2713 3274 3229 2872 2440 3316 3208 3362 2697 INPUT CHARACTERISTICS Parameter Voltage range Input reflected ripple For full details go to www.murata-ps.com/rohs Conditions Min. Typ. Max. Units Continuous operation, 3V input types Continuous operation, 5V input types Continuous operation, 12V input types Continuous operation, 15V input types Continuous operation, 24V input types 3.3V input types 5V input types 12V & 15V input types 24V input types 2.97 4.5 10.8 13.5 21.6 3.3 5 12 15 24 40 24 12 8 3.63 5.5 13.2 16.5 26.4 V mA 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. www.murata-ps.com/support KDC_MEJ1_E01 Page 1 of 9 MEJ1 Series 5.2kVDC Isolated 1W DC/DC Converters OUTPUT CHARACTERISTICS Parameter Conditions Rated Power2 Voltage Set Point Accuracy Line regulation TA=-40ºC to 85ºC See tolerance envelopes High VIN to low VIN Min. Typ. Max. Units 1 W 1.1 1.2 %/% Typ. Max. Units ABSOLUTE MAXIMUM RATINGS Short-circuit protection Lead temperature 1mm from case for 10 seconds Input voltage VIN, MEJ1x03xxSC Input voltage VIN, MEJ1x05xxSC Input voltage VIN, MEJ1x12xxSC Input voltage VIN, MEJ1x15xxSC Input voltage VIN, MEJ1x24xxSC 48 Hours 260°C 5V 7V 15V 18V 28V ISOLATION CHARACTERISTICS Parameter Conditions Min. Production tested for 1 second Qualifcation tested for 1 second Qualifcation tested for 1 minute Viso= 500VDC 5200 7000 5200 Parameter Conditions Min. Switching frequency All types Isolation test voltage Resistance Isolation capacitance VDC 1 3 GΩ pF GENERAL CHARACTERISTICS Typ. Max. 50 Units kHz TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Specification Storage All output types (see safety approval section for limitations) -40 -55 MEJ1S1212SC, MEJ1S1512SC, MEJ1S2412SC, MEJ1D1215SC, MEJ1D1512SC, MEJ1D2412SC, MEJ1D2415SC, MEJ1S1215SC, MEJ1S1509SC, MEJ1S2409SC Case Temperature above ambient Cooling 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 Free air convection Typ. Max. Units 85 125 13 °C 17 21 Output Power (W) TEMPERATURE DERATING GRAPH 1.0 0.5 0.2 -40 Safe Operating Area 85 0 40 Ambient Temperature (ºC) www.murata-ps.com/support KDC_MEJ1_E01 Page 2 of 9 MEJ1 Series 5.2kVDC Isolated 1W DC/DC Converters 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 www.murata-ps.com/support KDC_MEJ1_E01 Page 3 of 9 MEJ1 Series 5.2kVDC Isolated 1W DC/DC Converters 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. MEJ1S0303SC MEJ1S0305SC MEJ1S0503SC MEJ1S0505SC MEJ1S0509SC MEJ1S0512SC MEJ1S0515SC MEJ1S1203SC MEJ1S1205SC MEJ1S1209SC MEJ1S1212SC MEJ1S1215SC MEJ1S1505SC MEJ1S1509SC MEJ1S1512SC MEJ1S1515SC MEJ1S2405SC MEJ1S2409SC MEJ1S2412SC MEJ1S2415SC Start-up time μs 900 2000 500 2000 3200 7500 10500 600 1200 2900 2900 3900 1100 2400 2700 3800 1700 2300 2200 3600 MEJ1D0503SC MEJ1D0505SC MEJ1D0509SC MEJ1D0512SC MEJ1D0515SC MEJ1D1203SC MEJ1D1205SC MEJ1D1209SC MEJ1D1212SC MEJ1D1215SC MEJ1D1505SC MEJ1D1509SC MEJ1D1512SC MEJ1D1515SC MEJ1D2405SC MEJ1D2409SC MEJ1D2412SC MEJ1D2415SC Typical Start-Up Wave Form Start-up time μs 700 1600 3700 4200 7000 600 1200 3600 3900 6000 1200 3200 3300 4800 1100 2000 3300 6400 Ripple & Noise Characterisation Method Ripple and noise measurements are performed with the following test configuration. C1 1μF X7R multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter 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 C2 than 100mΩ at 100 kHz C3 100nF multilayer ceramic capacitor, general purpose R1 450Ω resistor, carbon film, ±1% tolerance R2 50Ω 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 DC/DC Converter OSCILLOSCOPE C1 C2 C3 + SUPPLY Input - + R1 T1 R2 Y INPUT Output - R LOAD www.murata-ps.com/support KDC_MEJ1_E01 Page 4 of 9 MEJ1 Series 5.2kVDC Isolated 1W DC/DC Converters 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 +5% +3% +1% Output Voltage Output Voltage +2% -1% 0% -3% -7% 10 25 50 75 10 100 25 Output Load Current (%) DUAL 0515, SINGLE 1515, 2415 100 75 50 Output Load Current (%) DUAL 1512, SINGLE 1212, 1512, 2412 +2% 0% -1% Output Voltage Output Voltage +2% 0% 0% -5% -4% 10 25 50 75 100 10 25 Output Load Current (%) 50 75 100 Output Load Current (%) DUAL 0512, SINGLE 1209, 1509, DUAL 1212, 1215, 2415, SINGLE 0509, 0512, 1215, 2409 +5% +2% +1% -1% Output Voltage Output Voltage +2% -1% -4% -4% 10 25 50 Output Load Current (%) 75 100 10 25 50 75 100 Output Load Current (%) www.murata-ps.com/support KDC_MEJ1_E01 Page 5 of 9 MEJ1 Series 5.2kVDC Isolated 1W DC/DC Converters TOLERANCE ENVELOPES SINGLE 1205, 1505, 2405, 0515 DUAL 1205, 0505, 1505, 2405 +2% +3% 0% Output Voltage +5% Output Voltage +4% +1% -3% 10 25 50 75 100 -2% 10 Output Load Current (%) 25 50 75 100 Output Load Current (%) DUAL 0509, 0503, SINGLE 0503, 0505 Output Voltage +6% +1% +1% -4% 10 25 50 75 100 Output Load Current (%) www.murata-ps.com/support KDC_MEJ1_E01 Page 6 of 9 MEJ1 Series 5.2kVDC Isolated 1W DC/DC Converters EFFICIENCY VS LOAD Single Output 5V Input 90 90 70 70 Efficiency (%) Efficiency (%) 3.3V Input 50 30 50 MEJ1S0503SC MEJ1S0505SC MEJ1S0509SC 30 MEJ1S0305SC MEJ1S0512SC MEJ1S0303SC MEJ1S0515SC 10 10 0 0 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 12V Input 60 90 70 70 50 MEJ1S1203SC MEJ1S1205SC MEJ1S1209SC 30 80 90 100 90 100 50 MEJ1S1505SC MEJ1S1509SC 30 MEJ1S1212SC MEJ1S1512SC MEJ1S1215SC MEJ1S1515SC 10 0 70 15V Input 90 Efficiency (%) Efficiency (%) 50 Load (%) Load (%) 10 0 10 20 30 40 50 60 70 80 90 100 Load (%) 0 0 10 20 30 40 50 60 70 80 Load (%) 24V Input 90 Efficiency (%) 70 50 MEJ1S2405SC MEJ1S2409SC 30 MEJ1S2412SC MEJ1S2415SC 10 0 0 10 20 30 40 50 60 70 80 90 100 Load (%) www.murata-ps.com/support KDC_MEJ1_E01 Page 7 of 9 MEJ1 Series 5.2kVDC Isolated 1W DC/DC Converters EFFICIENCY VS LOAD Dual Output 12V Input 90 90 70 70 50 Efficiency (%) Efficiency (%) 5V Input MEJ1D0503SC MEJ1D0505SC MEJ1D0509SC 30 50 MEJ1D1203SC MEJ1D1205SC MEJ1D1209SC 30 MEJ1D0512SC MEJ1D1212SC MEJ1D1215SC MEJ1D0515SC 10 10 0 0 10 20 30 40 50 60 70 80 90 0 100 0 10 20 30 40 Load (%) 15V Input 60 90 70 70 50 MEJ1D1505SC MEJ1D1509SC 30 80 90 100 90 100 50 MEJ1D2405SC MEJ1D2409SC 30 MEJ1D1512SC MEJ1D2412SC MEJ1D1515SC MEJ1D2415SC 10 0 70 24V Input 90 Efficiency (%) Efficiency (%) 50 Load (%) 10 0 10 20 30 40 50 Load (%) 60 70 80 90 100 0 0 10 20 30 40 50 60 70 80 Load (%) www.murata-ps.com/support KDC_MEJ1_E01 Page 8 of 9 MEJ1 Series 5.2kVDC Isolated 1W DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS Single Output 19.65 [0.774] MAX 10.05 [0.396] MAX 12.65 [0.498] MAX 0.40 [0.016] MIN MEJ1D0503SC XYYWW Pin Function 1 2 5 7 +Vin -Vin -Vout +Vout 4.10±0.50 [0.161±0.020] 1 2 5 6* 7 2.54 [0.100] 0.50 [0.020]±0.05 Dual Output 0.25 [0.010]±0.05 Pin Function 1 2 5 6* 7 +VIN -VIN -VOUT OV +VOUT * 2.93 2.13 [ 0.115 0.084 ] 15.24 [0.600] 2.95 1.62 0.064 ] [ 0.116 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. TUBE OUTLINE DIMENSIONS 6.00 (0.236) Weight: 4.3g RECOMMENDED FOOTPRINT DETAILS x5 HOLES Ø 1.15 1.00 14.20 (0.559) 0.039 ] [ Ø0.045 5.00 (0.197) 2.54 [0.100] 5.20 (0.205) 1.50 (0.059) 0.6±0.15 (0.024±0.006) Unless otherwise stated all dimensions in mm ±0.5mm (inches ±0.02). Tube length : 20.669±0.079 (525mm±2mm). Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED Tube Quantity : 25 2.54 [0.100] * Hole not required for single output variants. All dimensions in mm ±0.25mm (inches ±0.01). 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/ 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. © 2017 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_MEJ1_E01 Page 9 of 9