nmk series 3kvdc isolated 2w single & dual output dc/dc converters kdc_nmk.e03 page 1 of 6 www.murata-ps.com www.murata-ps.com/support for full details go to www.murata-ps.com/rohs $ selection guide order code 3 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 ef?ciency (min.) ef?ciency (typ.) isolation capacitance mttf 2 v v ma ma % mvp-p % % pf khrs nmk0505sac 5 5 400 470 5.7 7.3 18 20 80 83 28 3998 nmk0509sac 5 9 222 455 4.2 5.9 20 25 83 86 36 3718 nmk0512sac 5 12 167 450 3.8 5.1 18 20 83 87 36 3328 nmk0515sac 5 15 133 450 3.4 4.5 17 20 84 87 34 2855 nmk1205sac 12 5 400 200 4.2 4.9 25 30 80 83 33 3532 nmk1209sac 12 9 222 190 2.6 3.1 19 20 83 87 53 2417 nmk1212sac 12 12 167 190 2.4 2.9 17 23 85 88 62 2246 nmk1215sac 12 15 133 185 2.0 2.4 14 16 84 89 56 2020 nmk1505sac 15 5 400 158 4.3 5.5 34 55 81 84 37 tbd nmk1509sac 15 9 222 153 3 4 21 40 83 86 51 tbd nmk1512sac 15 12 167 150 2.5 3.5 20 40 84 87 63 tbd nmk1515sac 15 15 133 149 2.4 3.5 20 40 85 88 72 tbd nmk2405sac 24 5 400 99 4.2 5.5 42 70 80 84 41 tbd nmk2409sac 24 9 222 95 2.7 3.5 30 55 83 87 59 tbd nmk2412sac 24 12 167 94 2.1 3 29 55 84 88 77 tbd NMK2415SAC 24 15 133 93 2.2 3 34 70 85 88 85 tbd nmk0505sc 5 5 200 470 5 6.2 24 40 81 83 28 2324 nmk0509sc 5 9 111 455 3.9 5.3 18 30 83 86 33 2158 nmk0512sc 5 12 83 450 3.7 4.8 14 20 84 87 35 1931 nmk0515sc 5 15 67 450 3.5 5.2 12 20 84 87 31 1655 nmk1205sc 12 5 200 200 3.4 3.9 21 30 80 84 35 1952 nmk1209sc 12 9 111 190 2.4 2.8 16 20 83 87 50 2021 nmk1212sc 12 12 83 190 2.2 2.7 13 20 84 87 53 1821 nmk1215sc 12 15 67 190 1.9 2.4 13 20 83 87 57 1574 nmk1505sc 15 5 200 156 3.7 5 27 50 81 84 43 tbd nmk1509sc 15 9 111 153 2.4 3.5 19 35 82 86 47 tbd nmk1512sc 15 12 83 151 2.2 3 18 35 84 88 65 tbd nmk1515sc 15 15 67 150 2.0 3 14 35 85 88 74 tbd nmk2405sc 24 5 200 96 3.4 5 30 50 81 84 43 tbd nmk2409sc 24 9 111 94 2.3 3.5 26 45 84 87 65 tbd nmk2412sc 24 12 83 93 1.9 3 24 45 85 89 82 tbd nmk2415sc 24 15 67 93 1.7 3 17 35 85 89 86 tbd input characteristics parameter conditions min. typ. max. units voltage range continuous operation, 5v input types 4.5 5 5.5 v continuous operation, 12v input types 10.8 12 13.2 continuous operation, 15v input types 13.5 15 16.5 continuous operation, 24v input types 21.6 24 26.4 re?ected ripple current nmk2405sac, nmk2409sac, nmk2405sc, nmk2409sc 14 25 ma p-p all other variants 7.5 15 1. see ripple & noise characterisation method. 2. calculated using mil-hdbk-217f fn2 with nominal input voltage at full load. 3. see application notes on page 3. all speci?cations typical at t a =25c, nominal input voltage and rated output current unless otherwise speci?ed. product overview the nmk series of industrial temperature range dc/dc converters, available in industry standard sip packaging offers a power upgrade path from the 1w nmv series. the un-regulated nmk series has superior output voltage set point accuracy in conjunction with excellent load regulation for this converter type. unbalanced loading capabilities on dual output variants, all of the rated output power may be drawn from a single output 3 . features ? ul 60950 recognized ? rohs compliant ? ef?ciency from 80% ? power density 1.31w/cm 3 ? wide temperature performance at full 2 watt load, C40c to 85c ? ul 94v-0 package material ? no heatsink required ? industry standard pinout ? 3kvdc isolation (1 minute) ? 5v, 12v, 15v & 24v inputs ? 5v, 9v, 12v, & 15v output ? fully encapsulated with toroidal magnetics ? no electrolytic or tantalum capacitors
nmk series 3kvdc isolated 2w single & dual output dc/dc converters kdc_nmk.e03 page 2 of 6 www.murata-ps.com/support output characteristics parameter conditions min. typ. max. units rated power t a =-40 c to 85 c 2w voltage set point accuracy see tolerance envelope line regulation high v in to low v in 1.05 1.2 %/% absolute maximum ratings lead temperature 1.5mm from case for 10 seconds 260c input voltage v in , nmk05 types 7v input voltage v in, nmk12 types 15v input voltage v in , nmk15 types 18v input voltage v in, nmk24 types 28v isolation characteristics parameter conditions min. typ. max. units isolation test voltage flash tested for 1 minute 3000 vdc resistance viso= 1000vdc 10 g general characteristics parameter conditions min. typ. max. units switching frequency 60 khz temperature characteristics parameter conditions min. typ. max. units speci?cation all output types -40 85 c storage -50 125 case temperature above ambient 5v output types & nmk1509sac (except nmk1505s(a)c & nmk2405s(a) 28 nmk1505s(a)c & nmk2405s(a)c 32 all other output types 25 cooling free air convection temperature derating graph tolerance envelope output load current (%) e g a t l o v t u p t u o v nom 5% 0% -4% 2% typical load line 100 75 50 25 10 output load current (%) e g a t l o v t u p t u o v nom 5% 0% -3% 1% typical load line 100 75 50 25 10 150 100 50 0 -40 0 1 2 3 safe operating area 85c ambient temperature (c) output power (w) nmkxxxxsac nmkxxxxsc
nmk series 3kvdc isolated 2w single & dual output dc/dc converters kdc_nmk.e03 page 3 of 6 www.murata-ps.com/support rohs compliant information this series is compatible with rohs soldering systems with a peak wave solder temperature of 260c for 10 seconds. the pin termination ?nish 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 safety approval the nmk series has been recognised by underwriters laboratory (ul) to ul 60950 for functional insulation in a maximum ambient t emperature of 85oc and/or case temperature limit of 130oc. case temperature measured on the face opposite the pins. file number e179522 applies. the nmk series of converters are not internally fused so to meet the requirements of ul 60950 an anti-surge input line fuse sho uld always be used as below: nmk05xxsc/sac: 2a nmk12xxsc/sac: 0.75a nmk15xxsc/sac: 0.75a nmk24xxsc/sac: 0.375a 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 speci?ed time, across a component designed to provide electrical isolation, to verify the integrity of that isola tion. murata power solutions nmk series of dc/dc converters are all 100% production tested at their stated isolation voltage. this is 3kvdc for 1 minute. a question commonly asked is, what is the continuous voltage that can be applied across the part in normal operation? the nmk series has been recognized 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 nev er 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 isolati on 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 nmk 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 insu lation. 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 b e reduced by 20% from speci?ed 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 speci?cation is 10% of the full rated load across the speci?ed input voltage range. lower th an 10% minimum loading will result in an increase in output voltage, which may rise to typically double the speci?ed output voltage if the output load falls to less tha n 5%. unbalanced load the nmk series offers unbalanced loading capabilities with up to the full 2w available from a single output. however, when oper ated in this mode there may be a slight performance decrease in ef?ciency and load regulation.
nmk series 3kvdc isolated 2w single & dual output dc/dc converters kdc_nmk.e03 page 4 of 6 www.murata-ps.com/support application notes (continued) ripple & noise characterisation method all measurement to be taken with the following components connected to the uut as detailed below. 50 ohm coax cable, solder connections one end, bnc plug at the other end. c1 1f x7r multilayer ceramic capacitor rated at minimum 3 x the output voltage of the uut c2 10f tantalum capacitor rated at minimum 1.5 x the output voltage of the uut with esr of less than 100 milliohms at 100 khz e.g . avx tps c3 100nf multilayer ceramic capacitor, general purpose r1 450 ohm resistor, carbon ?lm, 1% r2 50 ohm bnc termination t1 3t of the coax cable through a ferrite toroid eg ferroxcube tn32/19/13-3e25 rload resistive load at the uut maximum rating. connections via twisted wires. differential mode noise test schematic oscilloscope y input supply c1 c2 c3 r1 t1 r2 input output dc/dc converter r load + + - - efficiency vs load nmk05xxsac nmk12xxsac 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100 load (%) ef?ciency (%) 5v 9v 12v 15v 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100 load (%) ef?ciency (%) 5v 9v 12v 15v
nmk series 3kvdc isolated 2w single & dual output dc/dc converters kdc_nmk.e03 page 5 of 6 www.murata-ps.com/support efficiency vs load (continued) nmk15xxsac nmk24xxsac nmk05xxsc nmk12xxsc nmk15xxsc nmk24xxsc 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100 load (%) ef?ciency (%) 5v 9v 12v 15v 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100 load (%) ef?ciency (%) 5v 9v 12v 15v 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100110 ef?ciency (%) load (%) 5v 9v 12v 15v 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100110 ef?ciency (%) load (%) 5v 9v 12v 15v 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100110 ef?ciency (%) load (%) 5v 9v 12v 15v 0 10 20 30 40 50 60 70 80 90 0 102030405060708090100110 ef?ciency (%) load (%) 5v 9v 12v 15v
nmk series 3kvdc isolated 2w single & dual output dc/dc converters kdc_nmk.e03 page 6 of 6 www.murata-ps.com/support 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 her ein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. speci?cations are subject to chan ge without notice. ? 2012 murata power solutions, inc. murata power solutions, inc. 11 cabot boulevard, mans?eld, ma 02048-1151 u.s.a. iso 9001 and 14001 registered 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/ package specifications mechanical dimensions recommended footprint details tube outline dimensions nmk0505sac 12 5 7 19.65 (0.774) (max.) 7.65 (0.301) (max.) 10.15 (0.4) (max.) 4.60 (0.181) 3.60 (0.142) 0.30 (0.0118) 0.20 (0.0079) 15.24 (0.6) 1.45 (0.057) 1.00 (0.039) 2.52 (0.099) 1.54 (0.061) 0.40 (0.0016) min. 2.54 (0.1) 6* xyyww 0.50 (0.020) * pin not ?tted on single output variants. all dimensions in mm 0.25 (inches 0.01). all pins on a 2.54 (0.1) pitch and within 0.25 (0.01) of true position. weight: 2.8g 18.00 (0.709) 12.43 (0.489) 5.00 (0.2) 9.30 (0.366) 0.50 (0.020) 2.54 (0.1) 2.54 (0.1) ? 4 holes 0.1 (0.00394) 1.15 (0.045) 1.00 (0.040) * unless otherwise stated all dimensions in mm (inches) 0.5mm. tube length : 520mm 2mm (20.47). tube quantity : 25 * hole not required for single output variants. unless otherwise stated all dimensions in mm (inches) 0.5mm. pin connections single output variants dual output variants pin function pin function 1+v in 1+v in 2-v in 2-v in 5-v out 5-v out 7+v out 6ov 7+v out
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