document 598-1 document 598-1 revised 09/03/15 smt power inductors C mss1278t dcr 3 srf i sat (a) 5 i rms (a) 6 inductance 2 (mohms) typ 4 10% 20% 30% 20c 40c part number 1 (h) typ max (mhz) drop drop drop rise rise mss1278t-102nl_ 1.0 30% 6.3 7.0 115 31.84 35.04 36.84 7.1 10.1 mss1278t-142nl_ 1.4 30% 8.8 9.8 85 25.04 27.76 29.52 6.8 9.8 mss1278t-222nl_ 2.2 30% 9.4 10.5 60 22.56 24.80 25.96 6.3 9.2 mss1278t-272nl_ 2.7 30% 10.1 11.3 40 18.76 20.72 22.04 6.1 8.6 mss1278t-392nl_ 3.9 30% 11.7 13.0 35 16.52 18.24 19.20 5.7 7.7 mss1278t-472ml_ 4.7 20% 13.9 15.5 33 15.30 16.90 17.76 4.3 6.2 mss1278t-562ml_ 5.6 20% 15.7 17.5 30 13.38 14.86 15.74 4.3 6.2 mss1278t-682ml_ 6.8 20% 19.1 21.3 23 12.10 13.56 14.20 4.2 6.0 mss1278t-822ml_ 8.2 20% 20.3 22.6 20 11.38 12.60 13.28 4.1 5.9 mss1278t-103ml_ 10 20% 21.8 24.3 17 10.62 11.82 12.48 4.0 5.7 mss1278t-123ml_ 12 20% 23.2 25.8 15 8.90 9.88 10.44 3.7 5.2 mss1278t-153ml_ 15 20% 27.9 31.0 13 8.36 9.32 9.94 3.5 4.9 mss1278t-183ml_ 18 20% 30.8 34.3 12 8.00 8.88 9.36 3.0 4.5 mss1278t-223ml_ 22 20% 35.5 39.5 11 7.08 7.88 8.34 2.9 4.0 mss1278t-273ml_ 27 20% 45.0 50.0 10 6.32 7.08 7.54 2.6 3.6 mss1278t-333ml_ 33 20% 61.9 68.8 9.5 5.96 6.56 6.98 2.3 3.1 mss1278t-393ml_ 39 20% 69.1 76.8 8.5 5.38 5.94 6.28 2.1 3.0 mss1278t-473ml_ 47 20% 72.3 80.4 7.5 4.76 5.40 5.66 2.0 2.9 mss1278t-563ml_ 56 20% 80.2 89.2 7.0 4.40 4.98 5.30 1.9 2.7 mss1278t-683ml_ 68 20% 91.3 101.5 6.5 3.92 4.46 4.74 1.8 2.6 mss1278t-823ml_ 82 20% 125.9 139.9 5.0 3.66 4.08 4.38 1.6 2.3 mss1278t-104ml_ 100 20% 135.1 150.2 4.5 3.12 3.56 3.78 1.5 2.2 mss1278t-124kl_ 120 10% 182.3 202.6 4.3 3.02 3.36 3.58 1.4 1.9 mss1278t-154kl_ 150 10% 216.5 240.6 4.1 2.60 2.94 3.10 1.3 1.8 mss1278t-184kl_ 180 10% 229.0 254.5 4.0 2.36 2.68 2.84 1.2 1.7 mss1278t-224kl_ 220 10% 323.6 359.6 3.4 2.24 2.50 2.62 1.0 1.6 mss1278t-274kl_ 270 10% 415.6 461.8 3.1 1.94 2.18 2.34 0.90 1.2 mss1278t-334kl_ 330 10% 487.3 541.5 2.9 1.72 1.92 2.06 0.80 1.0 mss1278t-394kl_ 390 10% 533.6 592.9 2.7 1.62 1.82 1.92 0.75 1.0 mss1278t-474kl_ 470 10% 707.5 786.2 2.2 1.44 1.64 1.74 0.66 0.90 mss1278t-564kl_ 560 10% 777.4 863.8 2.0 1.40 1.54 1.66 0.60 0.80 mss1278t-684kl_ 680 10% 1045 1162 1.7 1.24 1.32 1.46 0.55 0.75 mss1278t-824kl_ 820 10% 1166 1296 1.4 1.14 1.28 1.42 0.50 0.70 mss1278t-105kl_ 1000 10% 1334 1482 1.3 0.982 1.08 1.18 0.48 0.68 designers kit c419 contains 3 of each value core material ferrite core and winding loss see www.coilcraft.com/coreloss terminations rohs compliant matte tin over nickel over phos bronze. other terminations available at additional cost. weight: 3.8 g C 4.6 g ambient temperature C40c to +125c with (40c rise) i rms current. maximum part temperature +165c (ambient + temp rise). derating . storage temperature component: C40c to +165c. 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 500/13 reel; plastic tape: 24 mm wide, 0.5 mm thick, 16 mm pocket spacing, 8.7 mm pocket depth pcb washing tested to mil-std-202 method 215 plus an additional aqueous wash. see doc787_pcb_washing.pdf . ? designed for high ambient temperatures ? magnetic shielding, very low dcr, excellent current handling 1. please specify termination and packaging codes: mss1278t-105k ld termination: l = rohs compliant matte tin over nickel over phos bronze. special order: t = rohs tin-silver-copper (95.5/4/0.5) or s = non-rohs tin-lead (63/37). packaging: d = 13 machine-ready reel. eia-481 embossed plastic tape (500 parts per full reel). b = less than full reel. in tape, but not machine ready. to have a leader and trailer added ($25 charge), use code letter d instead. 2. inductance tested at 100 khz, 0.1 vrms, 0 adc using an agilent/hp 4263b lcr meter or equivalent. 3. dcr measured on a micro-ohmmeter and a coilcraft ccf858 test fxture. 4. srf measured using an agilent/hp 8753d network analyzer and a coilcraft smd - d test fxture. 5. dc current at 25c that causes the specifed inductance drop from its value without current. click for temperature derating information . 6. current that causes the specifed temperature rise from 25c ambient. this information is for reference only and does not represent absolute maximum ratings. click for temperature derating information . 7. electrical specifcations at 25c. refer to doc 362 soldering surface mount components before soldering. high tempera ture
document 598-2 document 598-2 revised 09/03/15 smt power inductors C mss1278t series 0. 1 1 10 100 1000 10000 0.1 1 100 10 inductance (h) current (a) 100 h 10 h 1 h 1000 h typical l vs frequency typical l vs current 0.01 0.1 10 1 inductance (h) frequency (mhz) 0. 1 1 10 100 1000 10000 100 h 10 h 1 h 1000 h dimensions are in inches mm high tempera ture
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