mvr1251t only vrm/ vrd power inductors C mvr document 420-1 document 420-1 revised 07/13/11 l 2 dcr srf 3 height 20% 8% typ i sat 4 i rms 5 max part number 1 (h) (mohm) (mhz) (a) (a) (mm) low core loss mvr1251t-251ml_ 0.25 0.925 160 35 25 5.1 mvr1251t-361ml_ 0.36 0.925 140 24 24 5.1 mvr1251t-561ml_ 0.56 0.925 110 13 25 5.1 soft saturation mvr1247c-361ml_ 0.36 0.925 120 36 24 4.7 mvr1255c-651ml_ 0.65 1.50 115 24 19 5.5 mvr1261c-112ml_ 1.10 1.95 95 20 20 6.1 mvr1271c-162ml_ 1.65 2.53 55 17 20 7.1 mvr1278c-232ml_ 2.30 3.08 50 16 17 7.8 1. when ordering, please specify termination and packaging codes: mvr1278c-232m lc termination: l = rohs compliant tin-silver over copper. special order: t = rohs tin-silver-copper (95.5/4/0.5) or s = non-rohs tin-lead (63/37). packaging: c = 7 machine-ready reel. eia-481 embossed plastic tape. b = less than full reel. in tape, but not machine ready. to have a leader and trailer added ($25 charge), use code letter c instead. d = 13 machine-ready reel. eia-481 embossed plastic tape. factory order only, not stocked. 2. inductance measured at 500 khz, 0.1 vrms, 0 adc using a coilcraft smd-a fxture in an agilent/hp 4284a lcr meter or equivalent. 3. srf measured on an agilent/hp 8753es. 4. dc current at which the inductance drops 30% (typ) for mvr12xxc and 20% (typ) for mvr12xxt from its value without current. 5. current that causes a 40c temperature rise from 25c ambient. 6. electrical specifcations at 25c. refer to doc 362 soldering surface mount components before soldering. core material mvrxxxt: ferrite; mvrxxxxc: powdered iron core and winding loss see www.coilcraft.com/coreloss terminations rohs compliant tin-silver over copper. other termina - tions available at additional cost. weight mvrt: 2.1 g; mvrc: 2.45 C 3.86 g ambient temperature C40c to +85c with i rms current, +85c to +125c with derated current storage temperature component: C40c to +125c. tape and reel packaging: C40c to +80c resistance to soldering heat max three 40 second refows at +260c, parts cooled to room temperature between cycles moisture sensitivity level (msl) 1 (unlimited foor life at <30c / 85% relative humidity) failures in time (fit) / mean time between failures (mtbf) 38 per billion hours / 26,315,789 hours, calculated per telcordia sr-332 packaging mvr1247 200/7 reel; 900/13 reel mvr1251 175/7 reel; 700/13 reel mvr1255 175/7 reel; 700/13 reel mvr1261 175/7 reel; 700/13 reel mvr1271 100/7 reel; 500/13 reel mvr1278 100/7 reel; 500/13 reel plastic tape: 24 mm wide, 16 mm pocket spacing mvr1247 0.35 mm thick, 4.5 mm pocket depth mvr1251 0.4 mm thick, 6.1 mm pocket depth mvr1255 0.4 mm thick, 6.1 mm pocket depth mvr1261 0.4 mm thick, 6.1 mm pocket depth mvr1271 0.4 mm thick, 7.5 mm pocket depth mvr1278 0.4 mm thick, 7.5 mm pocket depth pcb washing tested with pure water or alcohol only. for other solvents, see doc787_pcb_washing.pdf. the mvr series provides greater current handling capability than any other power inductor its size. while requiring only one square centimeter of board space, this inductor can handle up to 36 amps of current. these shielded inductors were developed for multi-phase voltage regulators and are ideal for use in dc-dc con - verters, battery-powered devices and high current power supplies. their fat wire construction ensures very low dc resistance and offers an excellent performance-to- height ratio. the materials used in these parts eliminate all thermal aging issues. the mvr12xxt is a high effciency part that features very low core loss. the mvr12xxc provides soft saturation and is unaffected by part temperature up to 125c. refer to the comparison curves for l vs current and esr vs frequency for performance differences. for free evaluation samples, contact coilcraft or order them online at www.coilcraft.com. us uk t aiwan china singapore +1-847-639-6400 sales@coilcraft.com +44-1236-730595 sales@coilcraft-eur ope.com +886-2-2264 3646 sales@coilcraft.com.tw +86-21-6218 8074 sales@coilcraft.com.cn + 65-6484 8412 sales@coilcraft.com.sg ? coilcraft inc. 2013 this pr oduct may not be used in medical or high risk applications without prior coilcraft appr oval. specification subject to change without notice. please check web site for latest infor mation.
document 420-2 revised 07/13/11 document 420-2 current derating temperature rise vs current 70 80 60 50 40 30 20 10 0 t emperature r ise (fr om 2 5c) current (a rms) 5 01 52 02 53 03 5 10 0.36 h 2.3 h mvr12xxt mvr12xxc 0.25 h 0.36 h 0.56 h 0.65 h 1.10 h 1.65 h 0.1 1 100 10 current (a) inductance (h) 0.2 0.5 0.4 0.3 0.1 mvr1251t -361 mvr1247c-361 l vs current comparison C 0.36 h -40 -2 00 20 40 60 80 100 140 120 a mbient t emperatur e (c) pe r cent of r ated c urrent 120 110 100 90 80 70 60 50 40 30 20 10 0 i sat i rm s 25 c mvr t m vrc height (in. / mm) length (in. / mm) body size typ max typ max mvr1247 0.171 / 4,35 0.185 / 4,70 0.448 / 11,37 0.453 / 11,50 mvr1251 0.181 / 4,61 0.200 / 5,10 0.439 / 11,14 0.453 / 11,50 mvr1255 0.207 / 5,25 0.217 / 5,50 0.448 / 11,37 0.453 / 11,50 mvr1261 0.232 / 5,90 0.240 / 6,10 0.448 / 11,37 0.453 / 11,50 mvr1271 0.262 / 6,65 0.280 / 7,10 0.448 / 11,37 0.453 / 11,50 mvr1278 0.287 / 7,29 0.307 / 7,80 0.448 / 11,37 0.453 / 11,50 0. 1 100 10 1 equi va l ent series r esistance (ohms) frequenc y ( mhz) 10 9 8 7 6 5 4 3 2 1 0 mvr1251t -361 mvr1247c-361 esr vs frequency comparison C 0.36 h dimensions are in inches mm us uk t aiwan china singapore +1-847-639-6400 sales@coilcraft.com +44-1236-730595 sales@coilcraft-eur ope.com +886-2-2264 3646 sales@coilcraft.com.tw +86-21-6218 8074 sales@coilcraft.com.cn + 65-6484 8412 sales@coilcraft.com.sg ? coilcraft inc. 2013 this pr oduct may not be used in medical or high risk applications without prior coilcraft appr oval. specification subject to change without notice. please check web site for latest infor mation. mvr series C vrm/ vrd power inductors
mvr1251t only document 420-3 revised 07/13/11 mvr12xxt mvr12xxc l vs frequency l vs frequency 0.1 1 100 10 frequency (mhz) 0 0.5 2.0 3.0 1.5 2.5 1.0 inductance (h) 0.36 h 0.65 h 1.10 h 1.65 h 2.30 h 1 0.1 100 10 frequency (mhz) inductance (h) 0 0.5 2.0 3.0 1.5 2.5 1.0 0.56 h 0.25 h 0.36 h inductance vs current is unaffected by part temperature up to 125c. l vs current l vs current 0.1 1 100 10 current (a) inductance (h) 0 0.5 2.0 3.0 1.5 2.5 1.0 0.36 h 0.65 h 1.10 h 1.65 h 2.30 h 0.1 1 100 10 current (a) inductance (h) 0 0.5 2.0 3.0 1.5 2.5 1.0 0.25 h 0.56 h 0.36 h document 420-3 esr vs frequency esr vs frequency 0. 1 100 10 1 equiv alent series resistance (ohms) frequenc y ( mhz) 10 9 8 7 6 5 4 3 2 1 0 0.36 h 0.25 h 0.56 h 0. 1 100 10 1 equiv alent series resistance (ohms) frequenc y ( mhz) 10 9 8 7 6 5 4 3 2 1 0 1.10 h 0.65 h 2.30 h 1.65 h 0.36 h us uk t aiwan china singapore +1-847-639-6400 sales@coilcraft.com +44-1236-730595 sales@coilcraft-eur ope.com +886-2-2264 3646 sales@coilcraft.com.tw +86-21-6218 8074 sales@coilcraft.com.cn + 65-6484 8412 sales@coilcraft.com.sg ? coilcraft inc. 2013 this pr oduct may not be used in medical or high risk applications without prior coilcraft appr oval. specification subject to change without notice. please check web site for latest infor mation. mvr series C vrm/ vrd power inductors
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