MEJ2 Series www.murata-ps.com 5.2kVDC Isolated 2W DC/DC Converters SELECTION GUIDE Order Code Nominal Input Voltage Output Voltage Output Current Input Current at Rated Load Load Regulation (Typ) Load Regulation (Max) Ripple & Noise (Typ)3 Ripple & Noise (Max)3 Efficiency (Min) Efficiency (Typ) MTTF2 V V mA % mVp-p % kHrs MEJ2S0303SC 3.3 3.3 606 756 14.0 17 38 55 67 70 3910 FEATURES MEJ2S0305SC 3.3 5 400 784 13.0 15 50 65 70 74 3757 (cid:2)(cid:3)RoHS compliant MEJ2S0503SC 5 3.3 606 528 10.0 15 40 55 67 70 3830 MEJ2S0505SC 5 5 400 503 8.5 10 43 55 72 75 3654 (cid:2)(cid:3)Basic/supplementary isolation to UL 609502 MEJ2S0509SC 5 9 222 505 8.0 11 36 50 75 78 3472 (cid:2)(cid:3)UL60601 (3rd Ed) recognition2 MEJ2S0512SC 5 12 167 495 8.0 12 40 55 74 77 3663 (cid:2)(cid:3)Power density 0.81W/cm3 MEJ2S0515SC 5 15 133 488 7.0 10 34 45 76 79 2629 MEJ2S1203SC 12 3.3 606 207 9.5 11 43 60 70 73 3259 (cid:2)(cid:3)Single and dual outputs MEJ2S1205SC 12 5 400 214 8.0 10 43 60 75 78 3200 (cid:2)(cid:3)UL 94V-0 package material MEJ2S1209SC 12 9 222 205 7.0 10 35 50 75 79 2453 MEJ2S1212SC 12 12 167 207 6.5 8 35 50 76 80 2779 (cid:2)(cid:3)Footprint 1.96cm2 MEJ2S1215SC 12 15 133 205 7.0 10 32 45 76 80 2707 (cid:2)(cid:3)SIP package style MEJ2S1505SC 15 5 400 171 8.5 10 44 60 73 76 2638 MEJ2S1509SC 15 9 222 165 6.5 8 35 50 74 78 2203 (cid:2)(cid:3)5.2kVDC isolation MEJ2S1512SC 15 12 167 164 6.5 8 38 55 74 79 2330 (cid:2)(cid:3)3.3V, 5V, 12V & 15V inputs MEJ2S1515SC 15 15 133 166 7.0 8 36 50 74 78 2100 (cid:2)(cid:3)3.3V, 5V, 9V, 12V & 15V output MEJ2D0503SC 5 ±3.3 ±303 535 8.5 10 26 40 67 71 3969 MEJ2D0505SC 5 ±5 ±200 508 7.5 9 34 50 72 76 3654 (cid:2)(cid:3)Internal SMD construction MEJ2D0509SC 5 ±9 ±111 510 6.5 8 27 40 76 79 3472 (cid:2)(cid:3)Fully encapsulated with toroidal magnetics MEJ2D0512SC 5 ±12 ±83 504 5.0 8 27 40 77 80 3663 MEJ2D0515SC 5 ±15 ±67 492 6.5 7 20 35 76 79 2629 (cid:2)(cid:3)Pin compatible with the MEV, NMV, NMK, & MEJ2D1203SC 12 ±3.3 ±303 205 8.0 9 37 55 72 75 3270 NMJ series MEJ2D1205SC 12 ±5 ±200 212 7.0 8 32 45 75 79 3268 (cid:2)(cid:3)MTTF up to 4200 million hours MEJ2D1209SC 12 ±9 ±111 206 5.5 7 27 40 77 81 2453 MEJ2D1212SC 12 ±12 ±83 208 5.5 7 27 40 77 81 2779 MEJ2D1215SC 12 ±15 ±67 203 6.0 7 24 40 78 82 2707 PRODUCT OVERVIEW MEJ2D1505SC 15 ±5 ±200 170 7.0 9 37 50 74 78 2638 The MEJ2 series are single and dual output MEJ2D1509SC 15 ±9 ±111 163 5.5 7 26 40 76 80 2203 medically approved DC/DC converters in a 7 pin SIP MEJ2D1512SC 15 ±12 ±83 167 5.5 7 26 40 75 80 2330 package style offering a power upgrade path from MEJ2D1515SC 15 ±15 ±67 167 5.5 7 23 35 75 79 2100 the NMJ series SIP DC/DC converters. The MEJ2 series is UL 60950 and UL 60601 recognized, which INPUT CHARACTERISTICS makes it ideal for applications where safety and Parameter Conditions Min. Typ. Max. Units miniaturisation are of paramount importance. Continuous operation, 3V input types 2.97 3.3 3.63 Continuous operation, 5V input types 4.5 5 5.5 Voltage range V Continuous operation, 12V input types 10.8 12 13.2 Continuous operation, 15V input types 13.5 15 16.5 3.3V input types 100 140 Input reflected ripple 5V input types 60 90 mA 12V & 15V input types 22 40 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. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support KDC_MEJ2C.B01 Page 1 of 7

MEJ2 Series 5.2kVDC Isolated 2W DC/DC Converters OUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Rated Power2 TA=-40ºC to 85ºC 2 W Voltage Set Point Accuracy See tolerance envelopes Line regulation High VIN to low VIN 1.0 1.2 %/% ABSOLUTE MAXIMUM RATINGS Short-circuit protection 10 minutes Lead temperature 1mm from case for 10 seconds 260°C Input voltage VIN, MEJ2x03xxSC 5V Input voltage VIN, MEJ2x05xxSC 7V Input voltage VIN, MEJ2x12xxSC 15V Input voltage VIN, MEJ2x15xxSC 18V ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Isolation test voltage Flash tested for 1 second 5200 VDC Resistance Viso= 500VDC 1 GΩ Isolation capacitance 4 pF GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Switching frequency All types 45 kHz TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Specification All output types (see safety approval section for limitations) -40 85 Storage -55 125 MEJ2S0509SC, MEJ2S0512SC, MEJ2S0515SC, MEJ2S1209SC, MEJ2x1212SC, 27 MEJ2S1215SC, MEJ2S1509SC, MEJ2S1512SC, MEJ2S1515SC MEJ2S0503SC, MEJ2S0505SC, MEJ2S1203SC, MEJ2S1205SC, MEJ2x1505SC, °C 30 Case Temperature above ambient MEJ2S1515SC, MEJ2D0512SC, MEJ2D0515SC, MEJ2D1209SC, MEJ2D1215SC MEJ2S0305SC, MEJ2S0303SC, MEJ2S1203SC, MEJ2D0505SC, MEJ2D0509SC, 33 MEJ2D1205SC, MEJ2D1509SC, MEJ2D1512SC MEJ2D01203SC, MEJ2D0503SC 37 Cooling Free air convection TEMPERATURE DERATING GRAPH W)2.0 er ( w o Safe P ut 1.0 Operating Area p ut O 0.2 -40 0 40 85 Ambient Temperature (ºC) UL60950 recognition to a maximum ambient temperature of 85ºC and/or case temperature limit of 155ºC, measured on the face opposite the pins. www.murata-ps.com/support KDC_MEJ2C.B01 Page 2 of 7

MEJ2 Series 5.2kVDC Isolated 2W DC/DC Converters TOLERANCE ENVELOPE 3.3V in, 3.3V output types All other output types +9% +10% +2.5% +1% V VNOM NOM e e ag -7% ag -7.5% olt olt V V ut -17% ut p p ut ut O 10 25 50 75 100 O 10 25 50 75 100 Output Load Current (%) Output Load Current (%) 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. 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 MEJ2 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 MEJ2 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 UL 60601 The MEJ2 series has been recognized by Underwriters Laboratory (UL) to the 3rd edition of 60601 and provides 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): 2 MOOP based upon a working voltage of 200 Vrms max. and 280 Vpkmax., between Primary and Secondary and 1 MOOP based upon a working voltage of 200 Vrms max., between Primary and its Enclosure. File Number E202895 applies. UL 60950 The MEJ2 series has been recognized by Underwriters Laboratory (UL) to UL 60950 for basic/supplementary insulation to a working voltage of 200Vrms 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 MEJ2 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. MEJ2x03xxxC: 2A MEJ2x05xxxC: 2A MEJ2x12xxxC: 750mA MEJ2x15xxxC: 750mA 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_MEJ2C.B01 Page 3 of 7

MEJ2 Series 5.2kVDC Isolated 2W 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. Typical Start-Up Wave Form Start-up time Start-up time ms ms MEJ2S0303SC 0.89 MEJ2S1515SC 6.05 MEJ2S0305SC 1.89 MEJ2D0503SC 1.57 MEJ2S0503SC 1.08 MEJ2D0505SC 1.79 MEJ2S0505SC 2.04 MEJ2D0509SC 9.32 MEJ2S0509SC 6.5 MEJ2D0512SC 14.9 MEJ2S0512SC 8.29 MEJ2D0515SC 20.84 MEJ2S0515SC 11.4 MEJ2D1203SC 1.03 MEJ2S1203SC 0.73 MEJ2D1205SC 2.51 MEJ2S1205SC 1.61 MEJ2D1209SC 6.46 MEJ2S1209SC 4.04 MEJ2D1212SC 9.94 MEJ2S1212SC 5.51 MEJ2D1215SC 14.54 MEJ2S1215SC 7.61 MEJ2D1505SC 1.79 MEJ2S1505SC 1.33 MEJ2D1509SC 5.16 MEJ2S1509SC 3.37 MEJ2D1512SC 7.04 MEJ2S1512SC 4.47 MEJ2D1515SC 10.48 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 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 R1 T1 R2 + + Y INPUT SUPPLY Input Output - - R LOAD www.murata-ps.com/support KDC_MEJ2C.B01 Page 4 of 7

MEJ2 Series 5.2kVDC Isolated 2W DC/DC Converters EFFICIENCY VS LOAD MEJ2S03XXSC MEJ2S05XXSC 90 90 80 80 70 70 %) 60 %) 60 15V Efficiency ( 345000 53V.3V Efficiency ( 345000 19532VV.V3V 20 20 10 10 0 0 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100 Load (%) Load (%) MEJ2S12XXSC MEJ2S15XXSC 90 90 80 80 70 70 Efficiency (%) 34560000 1195352VV.VV3V Efficiency (%) 34560000 119552VVVV 20 20 10 10 0 0 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100 Load (%) Load (%) www.murata-ps.com/support KDC_MEJ2C.B01 Page 5 of 7

MEJ2 Series 5.2kVDC Isolated 2W DC/DC Converters EFFICIENCY VS LOAD MEJ2D05XXSC MEJ2D12XXSC 90 90 80 80 70 70 15V ency (%) 5600 11952VVV ency (%) 5600 1952VVV fici 40 5V fici 40 3.3V Ef 30 3.3V Ef 30 20 20 10 10 0 0 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100 Load (%) Load (%) MEJ2D15XXSC 90 80 70 %) 60 ncy ( 50 1152VV cie 40 9V Effi 30 5V 20 10 0 0 10 20 30 40 50 60 70 80 90 100 Load (%) www.murata-ps.com/support KDC_MEJ2C.B01 Page 6 of 7

MEJ2 Series 5.2kVDC Isolated 2W DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS 19.65 (0.77) Max. Dual Output Single Output Pin Function Pin Function 9.95 (0.39) 1 +VIN 1 +VIN Max. 2 -VIN 2 -VIN 5 -VOUT 5 -VOUT 6 OV 7 +VOUT 7 +VOUT 12.65 (0.5) RECOMMENDED FOOTPRINT DETAILS Max. 1.15 (0.045) x5 HOLES Ø 0.10 (0.004) 1.00 (0.039) 4.60 (0.18) 3.60 (0.14)1 2 5 6* 7 0.4 (0.016) Min. * 2.54 (0.1) 0.55 (0.022) 2.54 (0.1) 0.45 (0.018) 2.54 (0.1) 2.5±0.5 (0.098±0.02) * Hole not required for single output variants. 0.3 (0.012) All dimensions in inches ±0.01 (mm ±0.25mm). 0.2 (0.008) 2.95 (0.12) TUBE OUTLINE DIMENSIONS 6.00 14.20 (0.559) All dimensions in mm ±0.25mm (inches ±0.01). All pins on a 2.54 (0.1) pitch and within (0.236) ±0.25 (0.01) of true position. * Pin not fitted on single output variants. Weight: 4.2g 5.00 (0.197) 5.20 (0.205) 1.50 (0.059) 0.6±0.15 (0.024±0.006) Unless otherwise stated all dimensions in inches ±0.02 (mm ±0.5mm). Tube length : 20.669±0.079 (525mm±2mm). Tube Quantity : 25 This product is subject to the following operating requirements Murata Power Solutions, Inc. and the Life and Safety Critical Application Sales Policy: 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Refer to: http://www.murata-ps.com/requirements/ ISO 9001 and 14001 REGISTERED 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. © 2013 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_MEJ2C.B01 Page 7 of 7

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: M urata: MEJ2D0509SC MEJ2D1203SC MEJ2S0509SC MEJ2S1509SC MEJ2S0505SC MEJ2D0505SC MEJ2S1215SC MEJ2S0305SC MEJ2D1512SC MEJ2S1512SC MEJ2S0303SC MEJ2S1205SC MEJ2D1205SC MEJ2D1215SC MEJ2S0512SC MEJ2D1212SC MEJ2D1509SC MEJ2S1203SC MEJ2S1212SC MEJ2D1209SC MEJ2S0515SC MEJ2S1505SC MEJ2D1515SC MEJ2D1505SC MEJ2S1209SC MEJ2S0503SC MEJ2S1515SC MEJ2D0512SC MEJ2D0503SC MEJ2D0515SC