MER1 Series www.murata-ps.com 1kVDC Isolated 1W Single Output 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)1 Ripple & Noise (Max)1 Efficiency (Min.) Efficiency (Typ.) Isolation Capacitance MTTF2 V V mA mA % mVp-p % % pF kHrs MER1S0505SC 5 5 200 233 5.5 6.5 15 25 82 84 50 7684 FEATURES MER1S0509SC 5 9 111 226 4.2 5 11 20 84 87 55 7698 (cid:132)(cid:3)UL 60950 recognised MER1S0512SC 5 12 84 227 4.6 5.2 9 17 85 87 53 7175 MER1S0515SC 5 15 67 225 4.4 5 9 17 86 87.5 54 6496 (cid:132)(cid:3)Typical efficiency to 89% MER1S1205SC 12 5 200 97 4.5 5 11 20 82 84 49 7569 (cid:132)(cid:3)Wide temperature performance at full MER1S1209SC 12 9 111 95 3 3.4 9 17 84 86.5 66 7317 load, –40°C to 85°C MER1S1212SC 12 12 84 93 3 3.4 9 17 86 88.5 91 6647 MER1S1215SC 12 15 67 94 2.4 2.7 7 17 85 88 78 6279 (cid:132)(cid:3)Industry standard pinout MER1S1505SC 15 5 200 79 3.8 4.5 10 20 81 83.5 43 7167 (cid:132)(cid:3)1kVDC isolation ‘Hi Pot Test’ MER1S1509SC 15 9 111 77 2.4 2.8 8 17 83 86.5 68 6906 MER1S1512SC 15 12 84 76 2.3 2.7 7 15 84 87.5 75 6523 (cid:132)(cid:3)5V, 12V, 15V, 24V, & 48V inputs MER1S1515SC 15 15 67 75 2.4 2.8 7 15 86 89 107 5916 (cid:132)(cid:3)5V, 9V, 12V, & 15V output MER1S2405SC 24 5 200 50 3.1 3.7 15 25 81 84 52 7391 (cid:132)(cid:3)No external components required MER1S2409SC 24 9 111 48 2.1 2.5 10 20 83 86.5 75 6490 MER1S2412SC 24 12 84 48 1.8 2.4 9 20 84 87.5 91 6772 (cid:132)(cid:3)No electrolytic or tantalum capacitors MER1S2415SC 24 15 67 48 1.7 2.3 9 20 84 87.5 101 5957 (cid:132)(cid:3)Pin compatible with CMR, CRR1, NMG & MER1S4805SC 48 5 200 26 3.4 3.9 19 30 77 79.5 47 7354 NMR series MER1S4809SC 48 9 111 25 2.4 2.8 14 25 80 83 76 7120 MER1S4812SC 48 12 84 25 2.0 2.4 12 25 79 82.5 88 7088 MER1S4815SC 48 15 67 25 1.9 2.4 11 25 80 83 103 7238 PRODUCT OVERVIEW The MER1 series is the new high performance INPUT CHARACTERISTICS version of our 1W NMR series. The MER1 series Parameter Conditions Min. Typ. Max. Units is more efficient and offers improved regulation Continuous operation, 5V input types 4.5 5 5.5 performance for applications where a wide output Continuous operation, 12V input types 10.8 12 13.2 voltage variation cannot be tolerated. They are Voltage Range Continuous operation, 15V input types 13.5 15 16.5 V ideally suited for providing local supplies on Continuous operation, 24V input types 21.6 24 26.4 control system boards with the added benefit Continuous operation, 48V input types 43.2 48 52.8 of 1kVDC galvanic isolation to reduce switching 5V input types 7 15 noise. 12V input types 4 12 Reflected Ripple Current 15V input types 4 12 mA p-p 24V input types 8 20 48V input types 25 40 ABSOLUTE MAXIMUM RATINGS Lead temperature 1mm from case for 10 seconds 260°C Input voltage VIN, 5Vin types 7V Input voltage VIN, 12Vin types 15V Input voltage VIN, 15Vin types 18V Input voltage VIN, 24Vin types 28V Input voltage VIN, 48Vin types 54V 1. See Ripple & Noise characterisation method. For full details go to 2. Calculated using MIL-HDBK-217F FN2 with nominal input voltage at full load. www.murata-ps.com/rohs All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. www.murata-ps.com/support KDC_MER1.B08 Page 1 of 11

MER1 Series 1kVDC Isolated 1W Single Output DC-DC Converters OUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Rated Power TA=-40°C to 85°C 1 W Voltage Set Point Accuracy See tolerance envelope Line regulation High VIN to low VIN 1.05 1.1 %/% ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Isolation test voltage Flash tested for 1 second 1000 VDC Resistance Viso= 1000VDC 10 GΩ GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units 5V & 48V input types 62 Switching frequency 12V & 15V input types 75 kHz 24V input types 82 TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Specification All output types -40 85 Storage -50 125 °C 5V, 12V, & 15V input types 15 Case Temperature rise above ambient 24V & 48V input types 20 www.murata-ps.com/support KDC_MER1.B08 Page 2 of 11

MER1 Series 1kVDC Isolated 1W Single Output 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 MER1 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?” The MER1 has been recognised by Underwriters Laboratory for functional insulation, 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 materi- als, construction and environment. The MER1 series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enamelled 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 recognised 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. SAFETY APPROVAL The MER1 series has been recognised by Underwriters Laboratory (UL) to UL 60950 for functional insulation 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. The MER1 Series of converters are not internally fused so to meet the requirements of UL 60950 an anti-surge input line fuse should always be used with ratings as defined below. MER1S05xxSC: 1A MER1S12xxSC: 0.375A MER1S15xxSC: 0.375A MER1S24xxSC: 0.2A MER1S48xxSC: 0.1A All fuses should be UL approved and rated to at least the maximum allowable DC input voltage. RoHS COMPLIANT INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260°C for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. They are backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs TEMPERATURE DERATING GRAPH OUTPUT VOLTAGE TOLERANCE ENVELOPE 5% 1.5 e 2% g wer (W)1.0 85°C put Volta VNOM 0% ut Po0.5 Out utp -4% O 10 25 50 75 100 0 Output Load Current (%) -40 0 50 100 150 Ambient Temperature (°C) 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. www.murata-ps.com/support KDC_MER1.B08 Page 3 of 11

MER1 Series 1kVDC Isolated 1W Single Output 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. Start-up time Start-up time Typical Start-Up Wave Form μs μs MER1S0505SC 600 MER1S1512SC 3375 MER1S0509SC 1730 MER1S1515SC 5090 MER1S0512SC 3780 MER1S2405SC 431 MER1S0515SC 6700 MER1S2409SC 245 MER1S1205SC 750 MER1S2412SC 1634 MER1S1209SC 2605 MER1S2415SC 2682 MER1S1212SC 3754 MER1S4805SC 512 MER1S1215SC 5280 MER1S4809SC 1432 MER1S1505SC 704 MER1S4812SC 2528 MER1S1509SC 1859 MER1S4815SC 3884 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_MER1.B08 Page 4 of 11

MER1 Series 1kVDC Isolated 1W Single Output DC-DC Converters 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. L DC Power C Load Source DC Inductor Capacitor L, μH SMD Through Hole C, μF MER1S0505SC 10 82103C 11R103C 4.7 MER1S0509SC 22 82223C 11R223C 2.2 MER1S0512SC 47 82473C 11R473C 1 MER1S0515SC 47 82473C 11R473C 1 MER1S1205SC 10 82103C 11R103C 4.7 MER1S1209SC 22 82223C 11R223C 2.2 MER1S1212SC 47 82473C 11R473C 1 MER1S1215SC 47 82473C 11R473C 1 MER1S1505SC 10 82103C 11R103C 4.7 MER1S1509SC 22 82223C 11R223C 2.2 MER1S1512SC 47 82473C 11R473C 1 MER1S1515SC 47 82473C 11R473C 1 MER1S2405SC 10 82103C 11R103C 4.7 MER1S2409SC 22 82223C 11R223C 2.2 MER1S2412SC 47 82473C 11R473C 1 MER1S2415SC 47 82473C 11R473C 1 MER1S4805SC 10 82103C 11R103C 4.7 MER1S4809SC 22 82223C 11R223C 2.2 MER1S4812SC 47 82473C 11R473C 1 MER1S4815SC 47 82473C 11R473C 1 www.murata-ps.com/support KDC_MER1.B08 Page 5 of 11

MER1 Series 1kVDC Isolated 1W Single Output DC-DC Converters EFFICIENCY VS LOAD MER1S05XXSC MER1S12XXSC 90 90 80 80 70 5V 70 5V %) 60 9V %) 60 9V Efficiency ( 345000 1125VV Efficiency ( 345000 15V 12V 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 (%) MER1S15XXSC MER1S24XXSC 90 90 80 80 70 5V 70 5V Efficiency (%) 34560000 15V 12V 9V Efficiency (%) 34560000 15V12V 9V 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 (%) MER1S48XXSC 90 80 70 %) 60 5V cy ( 50 9V n e fici 40 12V Ef 30 20 15V 10 0 0 10 20 30 40 50 60 70 80 90 100 Load (%) www.murata-ps.com/support KDC_MER1.B08 Page 6 of 11

MER1 Series 1kVDC Isolated 1W Single Output DC-DC Converters EMC FILTERING AND SPECTRA FILTERING An input capacitor and inductor is required to meet EN 55022 Curve B, Quasi-Peak EMC limit, as shown in the following plots. The following plots show positive and negative quasi peak and CISPR22 Average Limit B (green line) and Quasi Peak Limit B (pink line) adherence limits. L DC Power Source C Load DC Inductor Capacitor L, μH SMD Through Hole C, μF MER1S0505SC 10 82103C 11R103C 2.2 MER1S0509SC 10 82103C 11R103C 2.2 MER1S0512SC 10 82103C 11R103C 1 MER1S0515SC 10 82103C 11R103C 2.2 MER1S1205SC 10 82103C 11R103C 2.2 MER1S1209SC 10 82103C 11R103C 2.2 MER1S1212SC 10 82103C 11R103C 0.68 MER1S1215SC 10 82103C 11R103C 2.2 MER1S1505SC 10 82103C 11R103C 2.2 MER1S1509SC 10 82103C 11R103C 1 MER1S1512SC 10 82103C 11R103C 1 MER1S1515SC 10 82103C 11R103C 1 MER1S2405SC 10 82103C 11R103C 2.2 MER1S2409SC 10 82103C 11R103C 2.2 MER1S2412SC 10 82103C 11R103C 2.2 MER1S2415SC 10 82103C 11R103C 2.2 MER1S4805SC 10 82103C 11R103C 4.7 MER1S4809SC 10 82103C 11R103C 4.7 MER1S4812SC 10 82103C 11R103C 4.7 MER1S4815SC 10 82103C 11R103C 4.7 MER1S0505SC MER1S0509SC 80 80 70 70 60 60 50 50 V V Bu 40 Bu 40 d d 30 30 20 20 10 10 0 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) Frequency (Hz) www.murata-ps.com/support KDC_MER1.B08 Page 7 of 11

MER1 Series 1kVDC Isolated 1W Single Output DC-DC Converters EMC FILTERING AND SPECTRA MER1S0512SC MER1S0515SC 80 80 70 70 60 60 50 50 V V Bu 40 Bu 40 d d 30 30 20 20 10 10 0 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) Frequency (Hz) MER1S1205SC MER1S1209SC 80 80 70 70 60 60 50 50 V V Bu 40 Bu 40 d d 30 30 20 20 10 10 0 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) Frequency (Hz) MER1S1212SC MER1S1215SC 80 80 70 70 60 60 50 50 V V Bu 40 Bu 40 d d 30 30 20 20 10 10 0 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) Frequency (Hz) www.murata-ps.com/support KDC_MER1.B08 Page 8 of 11

MER1 Series 1kVDC Isolated 1W Single Output DC-DC Converters EMC FILTERING AND SPECTRA MER1S1505SC MER1S1509SC 80 80 70 70 60 60 50 50 V V Bu 40 Bu 40 d d 30 30 20 20 10 10 0 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) Frequency (Hz) MER1S1512SC MER1S1515SC 80 80 70 70 60 60 50 50 BuV 40 BuV 40 d d 30 30 20 20 10 10 0 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) Frequency (Hz) MER1S2405SC MER1S2409SC 80 80 70 70 60 60 50 50 V V Bu 40 Bu 40 d d 30 30 20 20 10 10 0 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) Frequency (Hz) www.murata-ps.com/support KDC_MER1.B08 Page 9 of 11

MER1 Series 1kVDC Isolated 1W Single Output DC-DC Converters EMC FILTERING AND SPECTRA (continued) MER1S2412SC MER1S2415SC 80 80 70 70 60 60 50 50 V V Bu 40 Bu 40 d d 30 30 20 20 10 10 0 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) Frequency (Hz) MER1S4805SC MER1S4809SC 80 80 70 70 60 60 50 50 V V Bu 40 Bu 40 d d 30 30 20 20 10 10 0 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) Frequency (Hz) MER1S4812SC MER1S4815SC 80 80 70 70 60 60 50 50 V V Bu 40 Bu 40 d d 30 30 20 20 10 10 0 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) Frequency (Hz) www.murata-ps.com/support KDC_MER1.B08 Page 10 of 11

MER1 Series 1kVDC Isolated 1W Single Output DC-DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT DETAILS 0.774 (19.65) (Max.) X 4 HOLESØ1.15 ] Ø 0.045] † 1.00 0.039 0.242 (6.15) Max.† 2.54 [0.100] MER1XXXXXSC 0.4 (10.15) XYYWW Max. 0.0016 (0.4) Min. 1 2 4 6 0.181 (4.60) 0.141 (3.60) 0.1 (2.54) 2.54 [0.100] 0.074±0.02 (1.88±0.50) 00..00101789 ((00..3200)) TUBE OUTLINE DIMENSIONS 0.05 0.5 (12.70) 9.3 [0.366] (1.25) † 48V input variants: 7.65 (0.301) MAX. Unless otherwise stated, all dimensions in inches ±0.05mm (0.002”). Controlling dimension is mm. Weight: 48Vin types: 2.75g (Typ.) All pins on a 2.54mm (0.100”) pitch and within 0.25mm (0.010”) of true position. All other types: 2.25g (Typ.) 12.43 [0.489] PIN CONNECTIONS 18.0 [0.709] Pin Function 1 +VIN 2 -VIN 4 -VOUT 6 +VOUT 5.0 [0.197] Unless otherwise specified all dimensions in mm [inches] ±0.55mm [0.022]. Tube Length : 520mm [20.472] ±2.0 [0.079]. Tube Quantity : 25 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. © 2018 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_MER1.B08 Page 11 of 11

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: M urata: MER1S0505SC MER1S0509SC MER1S0512SC MER1S0515SC MER1S1205SC MER1S1209SC MER1S1212SC MER1S1215SC MER1S1505SC MER1S1509SC MER1S1512SC MER1S1515SC MER1S2405SC MER1S2409SC MER1S2412SC MER1S2415SC MER1S4805SC MER1S4809SC MER1S4812SC MER1S4815SC