MEJ1 Series www.murata-ps.com 5.2kVDC Isolated 1W DC/DC Converters SELECTION GUIDE Order Code Nominal Input Voltage Output Voltage Output Current Input Current (Typ) Load Regulation (Typ) Load Regulation (Max) Ripple & Noise 3(Typ) Ripple & Noise 3(Max) Efficiency (Min) Efficiency (Typ) 1MTTF V V mA % mVp-p % kHrs 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 FEATURES MEJ1S0503SC 5 3.3 303 280 6.5 8 20 40 66 69 4117 n Basic/supplementary isolation to 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 UL 609502 MEJ1S0512SC 5 12 83 260 4.5 7 22 40 71 74 3816 n UL60601 (3rd Ed) recognition2 MEJ1S0515SC 5 15 66 260 5 6 22 40 72 75 3412 MEJ1S1203SC C12on3.3 t3a03 c110t F6 a7ct25or45y69 72 3461 n Single and dual outputs MEJ1S1205SC 12 5 200 110 5 6 21 40 71 74.5 3319 n UL 94V-0 package material gle MEJ1S1209SC 12 9 111 105 4 5 18 40 73 76.5 3218 Sin MEJ1S1212SC 12 12 83 105 3.5 5 19 40 73 76.5 3494 n SIP package style MEJ1S1215SC 12 15 66 105 4 5 16 40 73 77 3150 MEJ1S1505SC 15 5 200 90 5 6 23 45 70 74 3048 n 5.2kVDC isolation 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 n 3.3V, 5V, 12V, 15V & 24V inputs MEJ1S1515SC 15 15 66 85 4 5 19 35 73 76.5 2333 n 3.3V, 5V, 9V, 12V & 15V output MEJ1S2405SC 24 5 200 55 5 6 23 40 71 75 3353 MEJ1S2409SC 24 9 111 55 4 7 17 40 72 77 2940 n Internal SMD construction MEJ1S2412SC 24 12 83 55 4 5 19 40 72 78 2987 n Fully encapsulated with toroidal magnetics MEJ1S2415SC 24 15 66 55 3.5 5 17 40 74 78 2517 MEJ1D0503SC 5 ±3.3 ±151 280 6 8 19 40 67 70 4511 n Pin compatible with the MEV, NMV, NMK, MEJ1D0505SC 5 ±5 ±100 275 5 6 23 35 69 72 4012 MEJ2, & NMJ series 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 PRODUCT OVERVIEW MEJ1D1203SC 12 ±3.3 ±151 110 5.5 6 19 40 70 73 3461 The MEJ1 series are single and dual output DC/DC MEJ1D1205SC 12 ±5 ±100 110 4.5 5 18 40 72 75.5 3317 converters in a 7 pin SIP package style offering an MEJ1D1209SC 12 ±9 ±55 110 4 5 15 35 73 77 2908 isolation and insulation upgrade path from the NMV al MEJ1D1212SC 12 ±12 ±42 110 3.5 5 14 30 74 76.5 2911 & MEV1 series’. The MEJ1 series has UL60950 Du 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 and UL60601 recognition, which makes it ideal for MEJ1D1509SC 15 ±9 ±55 85 4 5 14 35 73 76.5 3229 applications where safety and miniaturisation are MEJ1D1512SC 15 ±12 ±42 85 3.5 5 13 35 73 77 2872 of paramount importance. 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 Continuous operation, 3V input types 2.97 3.3 3.63 Continuous operation, 5V input types 4.5 5 5.5 Voltage range Continuous operation, 12V input types 10.8 12 13.2 V Continuous operation, 15V input types 13.5 15 16.5 Continuous operation, 24V input types 21.6 24 26.4 3.3V input types 40 5V input types 24 Input reflected ripple mA 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. For full details go to 2. See safety approvals section for limitations of use. www.murata-ps.com/rohs 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_MEJ1C.A01 Page 1 of 9

MEJ1 Series 5.2kVDC Isolated 1W DC/DC Converters OUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Rated Power2 TA=-40ºC to 85ºC 1 W 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 Flash tested for 1 second 5200 VDC Resistance Viso= 500VDC 1 GΩ Isolation capacitance 3 pF 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 Storage -55 125 MEJ1S1212SC, MEJ1S1512SC, MEJ1S2412SC, MEJ1D1215SC, MEJ1D1512SC, 13 MEJ1D2412SC, MEJ1D2415SC, MEJ1S1215SC, MEJ1S1509SC, MEJ1S2409SC MEJ1D1205SC, MEJ1D1209SC, MEJ1D2405SC, MEJ1D2409SC, MEJ1S1209SC, MEJ1S1515SC, MEJ1S2415SC, MEJ1D1212SC, MEJ1D1509SC, MEJ1S0515SC, °C Case Temperature above ambient MEJ1S2405SC, MEJ1D0512SC, MEJ1D0515SC, MEJ1D1515SC, MEJ1S1505SC , 17 MEJ1D0505SC, MEJ1D0509SC, MEJ1D1203SC, MEJ1D1505SC, MEJ1S0509SC, MEJ1S0512SC, MEJ1S1205SC MEJ1S0505SC, MEJ1S1203SC, MEJ1D0503SC, MEJ1S0303SC, MEJ1S0305SC, 21 MEJ1S0503SC Cooling Free air convection TEMPERATURE DERATING GRAPH W)1.0 er ( w o Safe P ut 0.5 Operating Area p ut O 0.2 -40 0 40 85 Ambient Temperature (ºC) www.murata-ps.com/support KDC_MEJ1C.A01 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 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 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 UL 60601 The MEJ1 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 MEJ1 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 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_MEJ1C.A01 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. Typical Start-Up Wave Form Start-up time Start-up time μs μs 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 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_MEJ1C.A01 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% +2% +1% Output Voltage -1% utput Voltage 0% O -3% -7% 10 25 50 75 100 10 25 50 75 100 Output Load Current (%) Output Load Current (%) DUAL 0515, SINGLE 1515, 2415 DUAL 1512, SINGLE 1212, 1512, 2412 +2% +2% Output Voltage -1% 0% Output Voltage 0% 0% -5% -4% 10 25 50 75 100 10 25 50 75 100 Output Load Current (%) Output Load Current (%) DUAL 0512, SINGLE 1209, 1509, DUAL 1212, 1215, 2415, SINGLE 0509, 0512, 1215, 2409 +5% +2% +1% +2% Output Voltage -1% Output Voltage -1% -4% -4% 10 25 50 75 100 10 25 50 75 100 Output Load Current (%) Output Load Current (%) www.murata-ps.com/support KDC_MEJ1C.A01 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 +4% +5% +2% +3% ge ut Voltage 0% Output Volta +1% p ut O -3% -2% 10 25 50 75 100 10 25 50 75 100 Output Load Current (%) Output Load Current (%) DUAL 0509, 0503, SINGLE 0503, 0505 +6% ge ut Volta +1% +1% p ut O -4% 10 25 50 75 100 Output Load Current (%) www.murata-ps.com/support KDC_MEJ1C.A01 Page 6 of 9

MEJ1 Series 5.2kVDC Isolated 1W DC/DC Converters EFFICIENCY VS LOAD Single Output 3.3V Input 5V Input 90 90 70 70 %) %) fficiency ( 50 fficiency ( 50 MMEEJJ11SS00550035SSCC E E MEJ1S0509SC 30 MEJ1S0305SC 30 MEJ1S0512SC MEJ1S0303SC MEJ1S0515SC 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 (%) 12V Input 15V Input 90 90 70 70 Efficiency (%) 3500 MMMMEEEEJJJJ1111SSSS1111222210002935SSSSCCCC Efficiency (%) 3500 MMMEEEJJJ111SSS111555100295SSSCCC MEJ1S1215SC MEJ1S1515SC 10 10 00 10 20 30 40 50 60 70 80 90 100 00 10 20 30 40 50 60 70 80 90 100 Load (%) Load (%) 24V Input 90 70 %) ncy ( 50 fficie MEJ1S2405SC E MEJ1S2409SC 30 MEJ1S2412SC MEJ1S2415SC 10 0 0 10 20 30 40 50 60 70 80 90 100 Load (%) www.murata-ps.com/support KDC_MEJ1C.A01 Page 7 of 9

MEJ1 Series 5.2kVDC Isolated 1W DC/DC Converters EFFICIENCY VS LOAD Dual Output 5V Input 12V Input 90 90 70 70 %) %) fficiency ( 50 MMEEJJ11DD00550053SSCC fficiency ( 50 MMEEJJ11DD11220053SSCC E MEJ1D0509SC E MEJ1D1209SC 30 30 MEJ1D0512SC MEJ1D1212SC MEJ1D0515SC MEJ1D1215SC 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 (%) 15V Input 24V Input 90 90 70 70 %) %) ncy ( 50 ncy ( 50 fficie MEJ1D1505SC fficie MEJ1D2405SC E MEJ1D1509SC E MEJ1D2409SC 30 30 MEJ1D1512SC MEJ1D2412SC MEJ1D1515SC MEJ1D2415SC 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_MEJ1C.A01 Page 8 of 9

MEJ1 Series 5.2kVDC Isolated 1W DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS 19.65 (0.77) Max. Dual Output Single Output Pin Function Pin Function 9.95 (M0.a3x9.) 1 +VIN 1 +VIN 2 -VIN 2 -VIN 5 -VOUT 5 -VOUT 6 OV 7 +VOUT 7 +VOUT 12.65 (0.5) Max. RECOMMENDED FOOTPRINT DETAILS 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) 0.45 (0.018) * 2.54 (0.1) 2.5±0.5 (0.098±0.02) 0.3 (0.012) 2.54 (0.1) 0.2 (0.008) 2.95 (0.12) * Hole not required for single output variants. All dimensions in inches ±0.01 (mm ±0.25mm). 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: 4.3g 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_MEJ1C.A01 Page 9 of 9

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: M urata: MEJ1S1512SC MEJ1D0512SC MEJ1S2409SC MEJ1S1203SC MEJ1D1203SC MEJ1D1509SC MEJ1S1212SC MEJ1D1209SC MEJ1S0303SC MEJ1D2405SC MEJ1S1209SC MEJ1S0512SC MEJ1D1515SC MEJ1D0503SC MEJ1S1515SC MEJ1D0515SC MEJ1D0505SC MEJ1S2415SC MEJ1S1509SC MEJ1D1212SC MEJ1S1505SC MEJ1S2405SC MEJ1D1512SC MEJ1D1505SC MEJ1S0515SC MEJ1S0509SC MEJ1S1205SC MEJ1D0509SC MEJ1D2409SC MEJ1S0305SC MEJ1S0505SC MEJ1S0503SC MEJ1D2412SC MEJ1D2415SC MEJ1D1215SC MEJ1S2412SC MEJ1S1215SC MEJ1D1205SC