NKE Series www.murata-ps.com Isolated Sub-Miniature 1W Single Output DC-DC Converters SELECTION GUIDE Order Code Nominal Input Voltage Output Voltage Output Current Input Current at Rated Load Efficiency Isolation Capacitance MTTF1 Package Style FEATURES % MIL. Tel. V V mA mA pF (cid:132)(cid:3)RoHS Compliant Min. Typ. kHrs NKE0303DC 3.3 3.3 303 400 68 72 30 4337 46,969 (cid:132)(cid:3)Sub-Miniature SIP & DIP Styles NKE0305DC 3.3 5 200 400 72 75 35 4105 46,783 DIP (cid:132)(cid:3)3kVDC Isolation ‘Hi Pot Test’ NKE0309DC 3.3 9 111 403 71 74 30 1904 28,918 NKE0303SC 3.3 3.3 303 400 68 72 30 4337 46,969 (cid:132)(cid:3)UL60950 Recognised NKE0305SC 3.3 5 200 400 72 75 35 4105 46,783 SIP (cid:132)(cid:3)Wide Temperature performance at full NKE0309SC 3.3 9 111 403 71 74 30 1904 28,918 1 Watt load, –40°C to 85°C NKE0503DC 5 3.3 303 270 70 74 40 3710 36,234 NKE0505DC 5 5 200 289 66 69 28 4277 34,897 (cid:132)(cid:3)UL 94V-0 Package Material NKE0505DEC 5 5 200 250 73 77 34 2686 35,919 DIP (cid:132)(cid:3)Footprint at 0.69cm2 NKE0509DC 5 9 111 266 72 75 29 3729 76,553 NKE0512DC 5 12 83 260 73 78 30 2910 73,523 (cid:132)(cid:3)Industry Standard Pinout NKE0515DC 5 15 66 256 74 78 32 2211 71,725 (cid:132)(cid:3)3.3V, 5V & 12V Input NKE0503SC 5 3.3 303 270 70 74 40 3710 36,234 (cid:132)(cid:3)3.3V, 5V, 9V, 12V and 15V Output NKE0505SC 5 5 200 289 66 69 28 4277 34,897 NKE0505SEC 5 5 200 250 73 77 34 2686 35,919 (cid:132)(cid:3)Internal SMD Construction SIP NKE0509SC 5 9 111 266 72 75 29 3729 76,553 (cid:132)(cid:3)Fully Encapsulated with Toroidal NKE0512SC 5 12 83 260 73 78 30 2910 73,523 Magnetics NKE0515SC 5 15 66 256 74 78 32 2211 71,725 NKE1205DC 12 5 200 117 68 72 35 3981 58,202 (cid:132)(cid:3)MTTF up to 2.4 Million hours NKE1209DC 12 9 111 107 72 78 50 3482 57,895 DIP (cid:132)(cid:3)Custom Solutions Available NKE1212DC 12 12 83 105 73 79 57 1982 77,806 NKE1215DC 12 15 66 103 76 81 60 2122 56,404 (cid:132)(cid:3)No Electrolytic or Tantalum Capacitors NKE1205SC 12 5 200 117 68 72 35 3981 58,202 NKE1209SC 12 9 111 107 72 78 50 3482 57,895 PRODUCT OVERVIEW SIP NKE1212SC 12 12 83 105 73 79 57 1982 77,806 The NKE sub-miniature series of DC-DC Converters NKE1215SC 12 15 66 103 76 81 60 2122 56,404 is particularly suited to isolating and/or converting NKE0505SEC/NKE0505DEC offers higher efficiency than NKE0505SC/NKE0505DC but over a narrower operating temperature range. DC power rails. A smaller package size, improved See temperature characteristics graph. efficiency, lower output ripple and 3kVDC isolation capability through state of the art packaging and INPUT CHARACTERISTICS improved technology. The galvanic isolation allows Parameter Conditions Min. Typ. Max. Units the device to be configured to provide an isolated Continuous operation, 3.3V input types 2.97 3.3 3.63 negative rail in systems where only positive rails Voltage range Continuous operation, 5V input types 4.5 5.0 5.5 V exist. The wide temperature range guarantees Continuous operation, 12V input types 10.8 12.0 13.2 startup from –40°C and full 1 watt output at 85°C. Reflected ripple current 3.3V input types 40 60 mA p-p ABSOLUTE MAXIMUM RATINGS Lead temperature 1.5mm from case for 10 seconds 260°C Input voltage VIN, NKE03 types 5.5V Input voltage VIN, NKE05 types 7V Input voltage VIN, NKE12 types 15V For full details go to 1. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model 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_NKE.K09 Page 1 of 7

NKE Series Isolated Sub-Miniature 1W Single Output DC-DC Converters OUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Rated Power TA=-40°C to 120°C, see derating graphs 1.0 W Voltage Set Point Accuracy See tolerance envelope Line regulation High VIN to low VIN 1.0 1.2 %/% 10% load to rated load, 3.3V output types & 0309 10 15 10% load to rated load, 5V output types 12 15 Load Regulation1 10% load to rated load, 9V output types 7.5 10 % 10% load to rated load, 12V output types 6.5 9.5 10% load to rated load, 15V output types 6.0 8.5 BW=DC to 20MHz, 3.3V output types & 0305, 0505SEC, 0505DEC 40 80 BW=DC to 20MHz, other 5V output types 77 100 Ripple and Noise BW=DC to 20MHz, 9V output types 43 90 mV p-p BW=DC to 20MHz, 12V output types 35 65 BW=DC to 20MHz, 15V output types 32 55 ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Isolation test voltage Flash tested for 1 second 3000 VDC Resistance Viso= 1000VDC 10 GΩ GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Switching frequency All output types 115 kHz TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Specification All output types -40 85 Storage -50 130 °C Case temperature rise above 0505D/S, 1205D/S 41 ambient All other output types 32 Cooling Free air convection 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 NKE series of DC-DC converters are all 100% production tested at their stated isolation voltage. This is 3000V DC for 1 second. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” The NKE series 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 sys- tem. 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. While manufactured parts can 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. SAFETY APPROVAL The NKE series has been recognised by Underwriters Laboratory (UL) to UL 60950 for functional insulation in a maximum ambient temperature of 85ºC and/or case temperature limit of 130ºC. Case temperature measured on the face opposite the pins. File number E151252 applies. 1. 12V input types have typically 3% less load regulation. www.murata-ps.com/support KDC_NKE.K09 Page 2 of 7

NKE Series Isolated Sub-Miniature 1W Single Output DC-DC Converters TEMPERATURE DERATING GRAPHS NKE 0303DC/SC, 0305DC/ 1.5 All other types. 1.5 SC, 0309DC/SC, 0503DC/SC, 0505DEC/SEC types only. wer (W)1.0 85°C wer (W)1.0 85°C UL recognition to a put Po0.5 Safe Operating Area put Po0.5 Safe Operating Area maximum ambient Out Out 120°C temperature of 85ºC and/ 0 0 or case temperature limit of -40 0 50 100 150 -40 0 50 100 150 130ºC. Ambient Temperature (°C) Ambient Temperature (°C) TOLERANCE ENVELOPES 3.3V output types. All other types. +9% +10% V+1% Typical Load Line +1% +V5% Typical Load Line +2.5% NOM NOM -2.5% e e ag -7% -7% ag -7.5% ut Volt -15% ut Volt 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. RoHS COMPLIANCE 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. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs www.murata-ps.com/support KDC_NKE.K09 Page 3 of 7

NKE Series Isolated Sub-Miniature 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. Typical Start-Up Wave Form Start-up time Start-up time μs μs NKE0303SC 544 NKE0512SC 5040 NKE0305SC 1306 NKE0515SC 9940 NKE0309SC 5250 NKE1205SC 1671 NKE0503SC 496 NKE1209SC 2835 NKE0505SC 1075 NKE1212SC 5295 NKE0505SEC 894 NKE1215SC 8475 NKE0509SC 3140 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_NKE.K09 Page 4 of 7

NKE Series Isolated Sub-Miniature 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 NKE0303xC 10 82103C 11R103C 4.7μF NKE0305xC 47 82473C 11R473C 4.7μF NKE0309xC 47 82473C 11R473C 1μF NKE0503xC 10 82103C 11R103C 4.7μF NKE0505xC 47 82473C 11R473C 4.7μF NKE0505xEC 47 82473C 11R473C 4.7μF NKE0509SC 47 82473C 11R473C 1μF NKE0512xC 68 82683C 11R683C 0.68μF NKE0515xC 100 82104C 11R104C 2.2μF NKE1205xC 47 82473C 11R473C 4.7μF NKE1209xC 47 82473C 11R473C 1μF NKE1212xC 68 82683C 11R683C 0.47μF NKE1215xC 100 82104C 11R104C 2.2μF www.murata-ps.com/support KDC_NKE.K09 Page 5 of 7

NKE Series Isolated Sub-Miniature 1W Single Output DC-DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS - 8 PIN DIP DIP Package SIP Package Pin Function 1 -VIN 4 +VIN 5 +VOUT XXXX 7 -VOUT PIN CONNECTIONS - 4 PIN SIP 11.53±0.2 [0.454±0.008] Pin Function 7.46±0.25 [0.294±0.010] XXNYXKYWXEWXSC 0.40 [0.016] MIN S 123 -+-VVVOIUINNT 4.10±0.5 [0.161±0.020] 1 2 3 4 4 +VOUT 2.54 [0.100] 0.50±0.05 [0.020±0.002] (1.95 [0.077]) 0.25±0.05 [0.010±0.002] (1.13 [0.044]) 6.10+-00.2.155 [0.240+-00.0.01006] All dimensions in mm (inches) Controlling dimension is mm. All pins on a 2.54 (0.100) pitch and within ±0.1 (0.004) of true position from pin 1 at seating plane ‘S’ Weight: 1.09g (SIP) 1.25g (DIP) www.murata-ps.com/support KDC_NKE.K09 Page 6 of 7

NKE Series Isolated Sub-Miniature 1W Single Output DC-DC Converters PACKAGE SPECIFICATIONS (continued) RECOMMENDED FOOTPRINT DETAILS 8 Pin DIP Package 4 Pin SIP Package 2.54 [0.100] x4 HOLES Ø11..1050 [Ø00..004359] 2.54 [0.100] TUBE OUTLINE DIMENSIONS 8 Pin DIP Tube 4 Pin SIP Tube 7.7 [0.303] 11.60 (0.457) 6) 9 9.3 [0.366] 4 0. 0 ( 2.6 14.8 [0.583] 1 5.40 (0.213) 5.00 (0.197) 0.60±0.15 (0.0236±0.006) Unless otherwise specified all dimensions in mm [inches] ±0.55mm [0.022]. 4.45 [0.175] Tube length (8 Pin DIP) : 520mm ± 2mm (20.47). Tube length (4 Pin SIP) : 525mm ±2mm (20.67). Tube Quantity : 40 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_NKE.K09 Page 7 of 7

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: M urata: NKE0305SC NKE0305DC NKE0303DC NKE0303SC NKE0509DC NKE0509SC NKE1205SC NKE1205DC NKE1209DC NKE1209SC NKE0503SC NKE0503DC NKE0505SC NKE0515DC NKE0515SC NKE1215DC NKE1215SC NKE0505SEC NKE0512SC NKE0512DC NKE1212DC NKE1212SC NKE0309DC NKE0309SC NKE0505DEC NMG0524SC