NOT RECOMMENDED NMAA 24V & 48V Series www.murata-pss.com FOR NEW DESIGNSS Isolated 1WW Dual Output DC/DC Converters SELECTION GUIDE Nominal Recommended Output Output Isolation Input Efficiency MTTF1 Package Alternatives Order Code Voltage Current Capacitance Voltage Style (click for V V mA % pF kHrs data sheet) Not recommended for new designs: NMA2405SC 24 ±5 ±100 70 39 194 MEA1D2405SC NMA2409SC 24 ±9 ±55 77 85 129 MEA1D2409SC SIP NMA2412SC 24 ±12 ±42 80 65 134 MEA1D2412SC FEATURES NMA2415SC 24 ±15 ±33 80 95 101 MEA1D2415SC (cid:132)(cid:3)RoHS compliant Obsolete: NMA2405DC 24 ±5 ±100 70 39 194 MEA1D2405DC (cid:132)(cid:3)Efficiency up to 80% NMA2409DC 24 ±9 ±55 77 85 129 MEA1D2409DC (cid:132)(cid:3)Power density up to 0.85W/cm3 NMA2412DC 24 ±12 ±42 80 65 134 MEA1D2412DC NMA2415DC 24 ±15 ±33 80 95 101 DIP MEA1D2415DC (cid:132)(cid:3)Dual output from a single input rail NMA4805DC 48 ±5 ±100 70 26 206 MEA1D4805DC (cid:132)(cid:3)UL 94V-0 package material NMA4809DC 48 ±9 ±55 80 38 174 MEA1D4809DC NMA4812DC 48 ±12 ±42 80 52 139 MEA1D4812DC (cid:132)(cid:3)No heatsink required NMA4815DC 48 ±15 ±33 80 56 104 MEA1D4815DC (cid:132)(cid:3)Footprint from 1.17cm2 NMA4805SC 48 ±5 ±100 70 26 206 MEA1D4805SC (cid:132)(cid:3)Industry standard pinout NMA4809SC 48 ±9 ±55 80 38 174 SIP MEA1D4809SC NMA4812SC 48 ±12 ±42 80 52 139 MEA1D4812SC (cid:132)(cid:3)Power sharing on output NMA4815SC 48 ±15 ±33 80 56 104 MEA1D4815SC (cid:132)(cid:3)1kVDC isolation When operated with additional external load capacitance the rise time of the input voltage will determine the maximum external capacitance value for guaranteed start up. The slower the rise time of the input voltage the greater the maximum value of the (cid:132)(cid:3)24V & 48V input additional external capacitance for reliable start up. (cid:132)(cid:3)5V, 9V, 12V and 15V output INPUT CHARACTERISTICS (cid:132)(cid:3)Internal SMD construction Parameter Conditions Min. Typ. Max. Units Continuous operation, 24V input types 21.6 24 26.4 (cid:132)(cid:3)Fully encapsulated with toroidal Voltage range V Continuous operation, 48V input types 43.2 48 52.8 magnetics (cid:132)(cid:3)No external components required OUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units DESCRIPTION Rated Power2 TA=0°C to 70°C 1 W Voltage Set Point Accuracy See tolerance envelope The NMA series of DC/DC converters are the standard buliding blocks for on-board distrib- Line regulation High VIN to low VIN 1.2 %/% 10% load to rated load, 5V output types 15 uted power systems. They are ideally suited for Load Regulation % 10% load to rated load, all other output types 10 providing dual rail supplies on primarily digital Ripple and Noise BW=DC to 20MHz, all input types 150 mV p-p boards with the added benefit of galvanic isolation to reduce switching noise. All of the rated power ABSOLUTE MAXIMUM RATINGS may be drawn from a single pin provided the total load does not exceed 1 watt. Lead temperature 1.5mm from case for 10 seconds 300°C Internal power dissipation 450mW Input voltage VIN, NMA24 types 28V Input voltage VIN, NMA48 types 54V 1. Calculated using MIL-HDBK-217F with nominal input voltage at full load. 2. See derating graph. 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_NMAC2.G02 Page 1 of 4

NMA 24V & 48V Series Isolated 1W Dual Output DC/DC Converters ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Isolation test voltage Flash tested for 1 second 1000 VDC Resistance Viso= 500VDC 10 GΩ GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Switching frequency All input types 100 kHz TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Specification All output types 0 70 °C Storage -55 150 Cooling Free air convection RoHS COMPLIANCE INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300°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 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 NMA 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?” For a part holding no specific agency approvals, such as the NMA series, 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 materials, construction and environment. The NMA series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled 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 recognized 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. 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%. www.murata-ps.com/support KDC_NMAC2.G02 Page 2 of 4

NMA 24V & 48V Series Isolated 1W Dual Output DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS - 14 PIN DIP DIP package SIP package 0.77 (19.50) Pin Function 0.77 (19.50) 1 -VIN 7 NC 0.385 (9.80) NMA2405DC 0.236 8 OV XYYWWi (6.00)** 9 +VOUT 11 -VOUT 0.394 14 +VIN 0.268 (10.00) NMA2405SC 0.022 (0.55) (6.80)* XYYWWi 0.0178 (0.45) PIN CONNECTIONS - 7 PIN SIP 1 2 4 5 6 00..118412 ((43..6600)) 00..118411 ((43..6600)) 0.1 (2.54) Pin Function 0.022 (0.55) 0.1 (2.54) 1 +VIN 0.0178 (0.45) (02.0.0709) 00..2021 7(80 .(505.)4 5) 2 -VIN (01.0.0493) 0.0118 (0.30) 4 -VOUT 0.0079 (0.20) 5 OV 1 7 0.3 (7.62) 0.0118 (0.30) (01..0255 ) 0.5 (12.70) 6 +VOUT 0.0079 (0.20) 14 11 9 8 0.084 Weight: (2.13) 0.6 (15.24) 2.4g (24V DIP) * 0.303 (7.70) for 48V variants 2.9g (48V DIP) 2.2g (24V SIP) ** 0.295 (7.50) for 48V variants 2.9g (48V SIP) All dimensions in inches ±0.01 (mm ±0.25mm). All pins on a 0.1 (2.54) pitch and within ±0.01 (0.25) of true position. TEMPERATURE DERATING GRAPH TOLERANCE ENVELOPE +10% 1.5 +5% Typical Load Line +2.5% W)1.0 70°C VNOM -2.5% wer ( age -7.5% Po olt Output 0.05 Safe Operating Area 125ºC Output V 10 25 50 75 100 0 50 100 150 Output Load Current (%) Ambient Temperature (ºC) The voltage tolerance envelope shows typical load regulation characteristics for this product series. The tolerance envelope is the maximum output volt- age variation due to changes in output loading. www.murata-ps.com/support KDC_NMAC2.G02 Page 3 of 4

NMA 24V & 48V Series Isolated 1W Dual Output DC/DC Converters PACKAGE SPECIFICATIONS (continued) RECOMMENDED FOOTPRINT DETAILS 14 Pin DIP Package 7 Pin SIP Package 0.045 (1.15) Ø 50 .H03O9L E(1S. 00) Ø 00..004359 ((11..1050)) 5 HOLES 0.00394 (0.1) 0.00394 (0.1 0.1 (2.54) 0.1 (2.54) 0.1 (2.54) 0.1 (2.54) TUBE OUTLINE DIMENSIONS 14 Pin DIP Tube 7 Pin SIP Tube (cid:17)(cid:15)(cid:21)(cid:24)(cid:19)(cid:1)(cid:9)(cid:18)(cid:19)(cid:15)(cid:17)(cid:1)(cid:10) (cid:17)(cid:15)(cid:20)(cid:23)(cid:23)(cid:1)(cid:9)(cid:26)(cid:15)(cid:20)(cid:17)(cid:10)(cid:1) (cid:20)(cid:10) (cid:21) (cid:17)(cid:15)(cid:22)(cid:24)(cid:18)(cid:1)(cid:9)(cid:18)(cid:21)(cid:15)(cid:22)(cid:17)(cid:10) (cid:26)(cid:1)(cid:9)(cid:18)(cid:25)(cid:15)(cid:17)(cid:17)(cid:10)(cid:1) (cid:17)(cid:15)(cid:21)(cid:25)(cid:26)(cid:1)(cid:9)(cid:18)(cid:19)(cid:15) (cid:17) (cid:17)(cid:15)(cid:18)(cid:26)(cid:26)(cid:1)(cid:9)(cid:22)(cid:15)(cid:17)(cid:24)(cid:10) (cid:17)(cid:15)(cid:24) (cid:22)(cid:17)(cid:10) (cid:17)(cid:15) (cid:17)(cid:1)(cid:9) (cid:19) (cid:17) (cid:17)(cid:15) (cid:17)(cid:15)(cid:19)(cid:1)(cid:9)(cid:22)(cid:15)(cid:18)(cid:17)(cid:10) (cid:17)(cid:15)(cid:17)(cid:19)(cid:23)(cid:1)(cid:9)(cid:17)(cid:15)(cid:23)(cid:22)(cid:10)(cid:1) Unless otherwise stated all dimensions in inches (mm) ±0.5mm. (cid:17)(cid:15)(cid:19)(cid:1)(cid:9)(cid:22)(cid:15)(cid:17)(cid:17)(cid:10)(cid:1) Tube length (14 Pin DIP) : 20.47 (520mm ±2mm). Tube Quantity : 25 Tube length (7 Pin SIP) : 20.47 (520mm ±2mm). 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/ Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other ISO 9001 and 14001 REGISTERED 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. © 2011 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_NMAC2.G02 Page 4 of 4

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: M urata: NMA2405S NMA2412S NMA2415S NMA4805S NMA4812S NMA4815S NMA2405D NMA2412D NMA2415D NMA4805D NMA4812D NMA4815D NMA2409D NMA4809S NMA4812SC NMA4812DC NMA4815DC NMA4815SC NMA2405DC NMA2405SC NMA2415DC NMA2415SC NMA2409DC NMA2409SC NMA4809DC NMA4809SC NMA2412DC NMA2412SC NMA4805SC NMA4805DC