kdc_nkec.j01 page 1 of 4 technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232 www.murata-ps.com nke series isolated sub-miniature 1w single output dc/dc converters for full details go to www.murata-ps.com/rohs $ selection guide order code nominal input voltage output voltage output current input current at rated load ef?ciency isolation capacitance mttf 1 package style v v ma ma % pf khrs min. typ. nke0303dc 3.3 3.3 303 400 68 72 30 1234 dip nke0305dc 3.3 5 200 400 72 75 35 632 nke0309dc 3.3 9 111 403 71 74 30 1204 nke0303sc 3.3 3.3 303 400 68 72 30 1234 sip nke0305sc 3.3 5 200 400 72 75 35 632 nke0309sc 3.3 9 111 403 71 74 30 1204 nke0503dc 5 3.3 303 270 70 74 40 619 dip nke0505dc 5 5 200 289 66 69 28 2414 nke0505dec 5 5 200 250 75 77 34 419 nke0509dc 5 9 111 266 72 75 29 1173 nke0512dc 5 12 83 260 73 78 30 633 nke0515dc 5 15 66 256 74 78 32 360 nke0503sc 5 3.3 303 270 70 74 40 619 sip nke0505sc 5 5 200 289 66 69 28 2414 nke0505sec 5 5 200 250 75 77 34 419 nke0509sc 5 9 111 266 72 75 29 1173 nke0512sc 5 12 83 260 73 78 30 633 nke0515sc 5 15 66 256 74 78 32 360 nke1205dc 12 5 200 117 68 72 35 620 dip nke1209dc 12 9 111 107 72 78 50 488 nke1212dc 12 12 83 105 73 79 57 360 nke1215dc 12 15 66 103 76 81 60 252 nke1205sc 12 5 200 117 68 72 35 620 sip nke1209sc 12 9 111 107 72 78 50 488 nke1212sc 12 12 83 105 73 79 57 360 NKE1215SC 12 15 66 103 76 81 60 252 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 additional external capacitance for reliable start up. nke0505sec/nke0505dec offers higher ef?ciency than nke0505sc/nke0505dc but over a narrower operating temperature range. see temperature characteristics graph. input characteristics parameter conditions min. typ. max. units voltage range continuous operation, 3.3v input types 2.97 3.3 3.63 v continuous operation, 5v input types 4.5 5.0 5.5 continuous operation, 12v input types 10.8 12.0 13.2 re?ected ripple current 3.3v input types 40 60 ma p-p absolute maximum ratings short-circuit protection 2 1 second lead temperature 1.5mm from case for 10 seconds 300c internal power dissipation 530mw input voltage v in , nke03 types 5.5v input voltage v in , nke05 types 7v input voltage v in , nke12 types 15v 1. calculated using mil-hdbk-217f with nominal input voltage at full load. 2. supply voltage must be disconnected at the end of the short circuit duration. all speci?cations typical at t a =25c, nominal input voltage and rated output current unless otherwise speci?ed. description the nke sub-miniature series of dc/dc converters is particularly suited to isolating and/or converting dc power rails. a smaller package size, improved ef?ciency, lower output ripple and 3kvdc isolation capability through state of the art packaging and improved technology. the galvanic isolation allows the device to be con?gured to provide an isolated negative rail in systems where only positive rails exist. the wide temperature range guarantees startup from C40c and full 1 watt output at 85c. features rohs compliant sub-miniature sip & dip styles 3kvdc isolation ul recognised wide temperature performance at full 1 watt load, C40c to 85c increased power density to 2.09w/cm 3 ul 94v-0 package material footprint at 0.69cm 2 industry standard pinout 3.3v, 5v & 12v input 3.3v, 5v, 9v, 12v and 15v output internal smd construction fully encapsulated with toroidal magnetics mttf up to 2.4 million hours custom solutions available no electrolytic or tantalum capacitors
kdc_nkec.j01 page 2 of 4 technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232 www.murata-ps.com nke series isolated sub-miniature 1w single output dc/dc converters output characteristics parameter conditions min. typ. max. units rated power t a =-40c to 120c, see derating graphs 1.0 w voltage set point accuracy see tolerance envelope line regulation high v in to low v in 1.0 1.2 %/% load regulation 1 10% load to rated load, 3.3v output types & 0309 10 15 % 10% load to rated load, 5v output types 12 15 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 ripple and noise bw=dc to 20mhz, 3.3v output types & 0305, 0505sec, 0505dec 40 80 mv p-p bw=dc to 20mhz, other 5v output types 77 100 bw=dc to 20mhz, 9v output types 43 90 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 g general characteristics parameter conditions min. typ. max. units switching frequency all output types 115 khz temperature characteristics parameter conditions min. typ. max. units speci?cation all output types -40 85 c storage -50 130 case temperature rise above ambient 0505d/s, 1205d/s 41 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 speci?ed time, across a component designed to provide electrical isolation, to verify the integrity of that isola tion. murata power solutions nke series of dc/dc converters are all 100% production tested at their stated isolation voltage. this is 1000v 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 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 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 h igh 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 ab solutely required, that the voltage be reduced by 20% from speci?ed test voltage. 1. 12v input types have typically 3% less load regulation. safety approval the nke 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.
kdc_nkec.j01 page 3 of 4 technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232 www.murata-ps.com nke series isolated sub-miniature 1w single output dc/dc converters package specifications mechanical dimensions pin connections - 8 pin dip pin function 1-v in 4+v in 5+v out 7-v out pin connections - 4 pin sip pin function 1-v in 2+v in 3-v out 4+v out 0.45 (11.48) 0.236 (6.00) 0.0118 (0.30) 0.0078 (0.20) 0.0860.0197 (2.180.50) 0.3 (7.62) 0.049 (1.25) 0.293 (7.46) 0.022 (0.55) 0.018 (0.45) 0.181 (4.60) 0.142 (3.60) 0.1 (2.54) 0.01960.00196 (0.500.05) xyyww nke0505sc 0.212 (5.40) 0.181 (4.60) 0.142 (3.60) 0.01960.00196 (0.500.05) 0.453 (11.50) 0.386 (9.80) xyyww nke0505dc 0.0118 (0.30) 0.0078 (0.20) 0.043 (1.09) 0.0763 (1.94) 0.3 (7.62) 0.3 (7.62) 0.2 (5.08) 14 5 7 1 234 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. weight: 1.09g (sip) 1.25g (dip) tolerance envelopes 3.3v output types. all other types. 100 75 50 25 10 -7% +9% output load current (%) output voltage +1% -15% -7% +1% typical load line v nom +10% output load current (%) output voltage +5% -7.5% -2.5% +2.5% typical load line v nom 100 75 50 25 10 dip package sip package temperature derating graphs 150 100 50 0 -40 0 0.5 1.0 1.5 safe operating area 85c ambient temperature (c) output power (w) 150 100 50 0 -40 0 0.5 1.0 1.5 safe operating area 85c ambient temperature (c) output power (w) 120c nke 0303dc/sc, 0305dc/ sc, 0309dc/sc, 0503dc/sc, 0505dec/sec types only. all other types. ul recognition to a maximum ambient temperature of 85oc and/ or case temperature limit of 130oc.
kdc_nkec.j01 page 4 of 4 technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232 www.murata-ps.com nke series isolated sub-miniature 1w single output dc/dc converters 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. ? 2008 murata power solutions, inc. usa: mans?eld (ma), tel: (508) 339-3000, email: sales@murata-ps.com canada: toronto, tel: (866) 740 1232, email: toronto@murata-ps.com uk: milton keynes, tel: +44 (0)1908 615232, email: mk@murata-ps.com france: montigny le bretonneux, tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com germany: mnchen, tel: +49 (0)89-544334-0, email: munich@murata-ps.com japan: tokyo, tel: 3-3779-1031, email: sales_tokyo@murata-ps.com osaka, tel: 6-6354-2025, email: sales_osaka@murata-ps.com website: www.murata-ps.jp china: shanghai, tel: +86 215 027 3678, email: shanghai@murata-ps.com guangzhou, tel: +86 208 221 8066, email: guangzhou@murata-ps.com murata power solutions, inc. 11 cabot boulevard, mans?eld, ma 02048-1151 u.s.a. tel: (508) 339-3000 (800) 233-2765 fax: (508) 339-6356 www.murata-ps.com email: sales@murata-ps.com iso 9001 registered package specifications (continued) recommended footprint details tube outline dimensions rohs compliance information this series is compatible with rohs soldering systems with a peak wave solder temperature of 300c for 10 seconds. the pin term ination ?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 p replate. both types in this series are backward compatible with sn/pb soldering systems. for further information, please visit www.murata-ps.com/rohs 8 pin dip tube 4 pin sip tube 8 pin dip package 4 pin sip package
) 0 - & 4 ? tube quantity : 40 unless otherwise stated all dimensions in inches (mm) 0.5mm. tube length (8 pin dip) : 20.47 (520mm 2mm). tube length (4 pin sip) : 20.67 (525mm 2mm).
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