dc filtering 42 june 2015 medium power film capacitors fflc the fflc series is specifically designed for dc filtering applications such as dc link or resonant filters. large case sizes up to 35 liters and high specific energy up to 240j/l together with safe and reliable controlled self healing technology make this series particularly suitable for power converters in traction, drives and renewable energy areas. fflc uses polypropylene metallized segmented film and it is fully dry technology. standard designs proposed in this catalogue are covering a wide range of voltage and capacitance values. in case of specific requirements about shape and performances, feel free to contact your local avx representative. packaging material non-painted rectangular resin filled aluminium case mounting brackets 4 m8/15 female connections or m12/30 male connections standards iec 61071: power electronic capacitors iec 61881: railway applications, rolling stock equipment, capacitors for power electronics iec 60068-2: environmental testing ul 94: fire requirements nf f 16-101: rolling stock C fire behaviour C materials choosing nf f 16-102: rolling stock C fire behaviour C materials choosing, application for electric equipments en 45545-2: railways applications C fire protection on railway vehicles part 2 : requirements for fire behaviour of materials and components definitions c n capacitance nominal value of the capacitance measured at amb = 25 10c maximum operating peak voltage of either polarity (non-reversing u n rated dc voltage type waveform), for which the capacitor has been designed for continuous operation u w working voltage value of the maximum operating recurrent voltage for a given hot spot temperature and an expected lifetime u r ripple voltage peak-to-peak alternating component of the unidirectional voltage l s parasitic inductance capacitor series self-inductance r s capacitor series resistance capacitor series resistance due to galvanic circuit i rms thermal 1 rms current value for continuous operation under natural convection generating 20c overheating i rms thermal 2 rms current value for continuous operation under forced air generating 20c overheating temperature of the cooling air measured at the hottest position of the capacitor, under steady-state conditions, midway between amb (c) cooling air temperature two units note if only one unit is involved, it is the temperature measured at a point approximately 0.1 m away from the capacitor container and at two-thirds of the height from its base hs (c) hot spot temperature highest temperature obtained inside the case of the capacitor in thermal equilibrium characteristics capacitance range c n 1750f to 20600f tolerance on c n 10% rated dc voltage u n 800 to 1350v lifetime at u n and 70c hot-spot temperature 100,000h and c / c < 2% parasitic inductance l s 32 to 55nh maximum rms current i rms up to 400a rms test voltage between terminals 1.5 x u n for 10s @ 25c test voltage between terminals 4kv rms @ 50hz and case @ 25c for 10s dielectric polypropylene climatic category 40 / 85 / 56 (iec 60068) working temperature -40c / +85c (according to the power dissipated) storage temperature -40c / +85c calorific value 27 mj/kg how to order fflc series 3 width 1 = 100mm 2 = 125mm 3 = 150mm 4 = 175mm 1 height 1 = 245mm 2 = 315mm 3 = 385mm 4 = 455mm 5 = 525mm 6 = 595mm m terminals f = female m = male a voltage a = 800v b = 900v c = 1000v d = 1100v e = 1350v 4427 capacitance eia code
dc filtering june 2015 43 medium power film capacitors fflc lifetime expectancy vs hot spot temperature and voltage 1.4 1.3 1.2 1.1 1.0 0.9 0.8 100 1,000 10,000 100,000 1,000,000 lifetime expectancy (hours) uw/un hs = 70? hs = 85? hs = 55? how to chose the right capacitor tim e voltage u w u n u r 1/f the capacitor lifetime depends on the working voltage and the hot spot temperature. our caps are designed to meet 100000 hours lifetime at rated voltage and 70c hot spot temperature. in accordance with operating conditions, please calculate the hot spot temperature and deduce from this calculation if the obtained lifetime can s uit the application. 1. from the tables, select a capacitor with required capacitance c n and voltage u n . calculate the maximum ripple voltage allowed for the selected cap: u rmax = 0.2u n if u r >u rmax , select a capacitor with higher rated voltage make sure i rms application < i rms table copy out: ? serial resistance (r s ): see table of values ? thermal resistances r th1 and r th2 (depending on cooling conditions) 2. hot spot temperature calculation total losses are calculated as follow: p t =p j +p d joule losses: p j = r s x i rms2 dielectric losses: p d = q x tg 0 with ? q(reactive power) = i rms 2 for a sinusoidal waveform CCCCC c ? tg 0 = 2 x 10 -4 (dielectric losses of polypropylene) hot spot temperature will be: hs = amb + (p j + p d ) x (r th1 + r th2 ) hs absolute maximum is 85c if temperature is higher than 85c, come back to #1 and start again with another selection. r th1 : thermal resistance between hot spot and case r th2 : thermal resistance between case and ambient air width hs case amb r th1 r th2
dc filtering 44 june 2015 medium power film capacitors fflc 3. refer to the curve and deduce the lifetime vs u w /u n ratio eg: rated voltage 1000v working voltage 950v = 0.95 ? lifetime 200,000 hours @ 70c hot spot temperature please, find a calculation form at the end of the catalog 0.8 0.9 1 .1.1 1.2 1.3 1.4 100 1,000 10,000 100,000 1,000,000 lifetime expectancy (hours) u w /u n hs =70 c 200,000 0.95 rth1 (c/w) height width (mm) (mm) 100 125 150 175 245 0.56 0.67 0.76 0.82 315 0.41 0.49 0.56 0.6 385 0.3 0.36 0.41 0.44 455 0.25 0.3 0.34 0.37 525 0.2 0.24 0.27 0.3 595 0.17 0.21 0.24 0.26 low inductance design available on request thermal resistances parasitic inductance vs size rth2 (c) natural air cooling forced air cooling >2m/s height width (mm) width (mm) (mm) 100 125 150 175 100 125 150 175 245 0.47 0.44 0.42 0.40 0.23 0.22 0.21 0.20 315 0.36 0.35 0.33 0.31 0.18 0.17 0.16 0.16 385 0.30 0.28 0.27 0.25 0.15 0.14 0.13 0.13 455 0.25 0.24 0.23 0.22 0.13 0.12 0.11 0.11 525 0.22 0.21 0.20 0.19 0.11 0.10 0.10 0.09 595 0.19 0.18 0.17 0.16 0.10 0.09 0.09 0.08 r th1 (c/w): thermal resistance between hot spot and case l s (nh) height width (mm) (mm) 100 125 150 175 245 32 34 35 37 315 34 36 38 40 385 36 39 41 44 455 38 41 44 48 525 40 43 47 51 595 42 46 51 55 measurement @ 1mhz for confined area, capacitor working in a closed cabinet, a thermal test under real conditions is necessary to evaluate the thermal resistance. r th2 (c/w): thermal resistance between case and ambient air under natural convection and forced air
dc filtering june 2015 45 medium power film capacitors fflc mean time between failure (mtbf) mtbf = 1 / hours mtbf calculation general failure rate the failure rate b depends on hot spot temperature hs and charge ratio . = u w /u n ( ) ) ( in failures/hour = b x q x b x e failures/hour ? q , b and e see following tables qualification qualification factor q product qualified on iec61071 1 and internal qualification product qualified on iec61071 2 product answering on 5 another norm product without qualification 15 environment environment factor e on ground (good conditions) 1 on ground (fixed materials) 2 on ground (on board) 4 on ship 9 on plane 15 environment environment factor b favorable 1 unfavourable 5 survival function n = n 0 x exp (- t) n is the number of pieces still working after t hours. n 0 is the number of pieces at the origin (t = 0) failure mode main failure mode due to avxs controlled self-healing technology is only losses of capacitance. thanks to controlled self-healing solution to interrupt self-healing process in order to prevent avalanche effect due to polypropylene molecular cracking producing gas and potential explosion in confined box for none controlled self-healing capacitors .
dc filtering 46 june 2015 medium power film capacitors fflc dimensions s l a n i m r e t e l a m s l a n i m r e t e l a m e f max torque 15nm max torque 25nm weight vs size weight (kg) width height 100 125 150 175 245 12 15 17.5 20.5 315 15 18.5 22.5 26 385 18.5 23 27.5 32 455 21.5 27 32.5 37.5 525 25 31.5 37.5 42.5 595 28.5 35 41.5 48.5 available standard dimensions (other dimensions on request for specific design) h (mm): 245, 315, 385, 455, 525 and 595 w (mm): 100, 125, 150 and 175 mm
dc filtering june 2015 47 medium power film capacitors fflc table of values * insert f for female terminals or m for male terminals part number capacitance width height r s i rms thermal 1 i rms thermal 2 (f) ( mm) ( mm) (m) (a) (a) un = 800vdc fflc11 * ma4777 4,770 100 245 0.27 270 306 fflc12 * ma6087 6,080 100 315 0.23 333 380 fflc21 * ma6557 6,550 125 245 0.29 249 276 fflc13 * ma7817 7,810 100 385 0.20 400 400 fflc31 * ma8317 8,310 150 245 0.32 231 255 fflc22 * ma8337 8,330 125 315 0.25 310 348 fflc14 * ma9117 9,110 100 455 0.19 400 400 fflc41 * ma1008 10,000 175 245 0.35 218 240 fflc32 * ma1068 10,600 150 315 0.27 288 320 fflc23 * ma1078 10,700 125 385 0.22 380 400 fflc15 * ma1098 10,900 100 525 0.17 400 400 fflc16 * ma1228 12,200 100 595 0.17 400 400 fflc24 * ma1258 12,500 125 455 0.20 400 400 fflc42 * ma1278 12,700 175 315 0.29 274 299 fflc33 * ma1368 13,600 150 385 0.23 355 395 fflc25 * ma1498 14,900 125 525 0.18 400 400 fflc34 * ma1598 15,900 150 455 0.21 400 400 fflc43 * ma1648 16,400 175 385 0.25 338 374 fflc26 * ma1678 16,700 125 595 0.22 400 400 fflc35 * ma1898 18,900 150 525 0.20 400 400 fflc44 * ma1918 19,100 175 455 0.23 385 400 fflc36 * ma2118 21,100 150 595 0.19 400 400 fflc45 * ma2288 22,800 175 525 0.21 400 400 fflc46 * ma2558 25,500 175 595 0.20 400 400 un = 900vdc fflc11 * mb3847 3,840 100 245 0.29 261 296 fflc12 * mb4897 4,890 100 315 0.25 323 368 fflc21 * mb5277 5,270 125 245 0.31 240 267 fflc13 * mb6287 6,280 100 385 0.21 3100 400 fflc31 * mb6707 6,700 150 245 0.34 222 245 fflc22 * mb6717 6,710 125 315 0.27 300 337 fflc14 * mb7337 7,330 100 455 0.20 400 400 fflc41 * mb8077 8,070 175 245 0.37 209 231 fflc32 * mb8537 8,530 150 315 0.29 278 309 fflc23 * mb8627 8,620 125 385 0.23 369 400 fflc15 * mb8737 8,730 100 525 0.18 400 400 fflc16 * mb9777 9,770 100 595 0.17 400 400 fflc24 * mb1018 10,100 125 455 0.21 400 400 fflc42 * mb1038 10,300 175 315 0.32 264 289 fflc33 * mb1108 11,000 150 385 0.25 344 383 fflc25 * mb1258 12,500 125 525 0.19 400 400 fflc34 * mb1288 12,800 150 455 0.23 393 400 fflc43 * mb1328 13,200 175 385 0.27 327 362 fflc26 * mb1348 13,400 125 595 0.18 400 400 fflc35 * mb1528 15,200 150 525 0.21 400 400 fflc44 * mb1548 15,400 175 455 0.24 373 400 fflc36 * mb1718 17,100 150 595 0.20 400 400 fflc45 * mb1848 18,400 175 525 0.22 400 400 fflc46 * mb2068 20,600 175 595 0.21 400 400
dc filtering 48 june 2015 medium power film capacitors fflc table of values part number capacitance width height r s i rms thermal 1 i rms thermal 2 (f) ( mm) ( mm) (m) (a) (a) un = 1000vdc fflc11 * mc3167 3,160 100 245 0.30 253 287 fflc12 * mc4027 4,020 100 315 0.26 314 358 fflc21 * mc4337 4,330 125 245 0.33 232 258 fflc13 * mc5177 5,170 100 385 0.23 385 400 fflc31 * mc5517 5,510 150 245 0.37 215 237 fflc22 * mc5527 5,520 125 315 0.28 291 326 fflc14 * mc6037 6,030 100 455 0.21 400 400 fflc41 * mc6647 6,640 175 245 0.40 202 223 fflc32 * mc7017 7,010 150 315 0.31 269 299 fflc23 * mc7097 7,090 125 385 0.24 358 400 fflc15 * mc7187 7,180 100 525 0.19 400 400 fflc16 * mc8047 8,040 100 595 0.18 400 400 fflc24 * mc8277 8,270 125 455 0.22 400 400 fflc42 * mc8467 8,460 175 315 0.34 255 279 fflc33 * mc9027 9,020 150 385 0.26 334 372 fflc25 * mc9857 9,850 125 525 0.20 400 400 fflc34 * mc1058 10,500 150 455 0.24 382 400 fflc43 * mc1098 10,900 175 385 0.29 317 351 fflc26 * mc1108 11,000 125 595 0.19 400 400 fflc35 * mc1258 12,500 150 525 0.22 400 400 fflc44 * mc1278 12,700 175 455 0.26 362 400 fflc36 * mc1408 14,000 150 595 0.21 400 400 fflc45 * mc1518 15,100 175 525 0.23 400 400 fflc46 * mc1698 16,900 175 595 0.22 400 400 un = 1100vdc fflc11 * md2537 2,530 100 245 0.33 243 276 fflc12 * md3227 3,220 100 315 0.28 303 345 fflc21 * md3487 3,480 125 245 0.36 223 248 fflc13 * md4147 4,140 100 385 0.24 373 400 fflc31 * md4427 4,420 150 245 0.40 206 227 fflc22 * md4437 4,430 125 315 0.31 280 314 fflc14 * md4837 4,830 100 455 0.22 400 400 fflc41 * md5347 5,340 175 245 0.44 194 214 fflc32 * md5637 5,630 150 315 0.34 259 288 fflc23 * md5697 5,690 125 385 0.26 346 392 fflc15 * md5757 5,750 100 525 0.20 400 400 fflc16 * md6447 6,440 100 595 0.19 400 400 fflc24 * md6647 6,640 125 455 0.24 395 400 fflc42 * md6797 6,790 175 315 0.37 245 269 fflc33 * md7247 7,240 150 385 0.28 323 359 fflc25 * md7907 7,900 125 525 0.22 400 400 fflc34 * md8447 8,440 150 455 0.26 370 400 fflc43 * md8737 8,730 175 385 0.31 306 339 fflc26 * md8857 8,850 125 595 0.20 400 400 fflc35 * md1018 10,100 150 525 0.23 400 400 fflc44 * md1028 10,200 175 455 0.28 350 388 fflc36 * md1138 11,300 150 595 0.22 400 400 fflc45 * md1218 12,100 175 525 0.25 400 400 fflc46 * md1368 13,600 175 595 0.23 400 400 * insert f for female terminals or m for male terminals
dc filtering june 2015 49 medium power film capacitors fflc table of values part number capacitance width height r s i rms thermal 1 i rms thermal 2 (f) ( mm) ( mm) (m) (a) (a) un = 1350vdc fflc11 * me1757 1,750 100 245 0.37 228 259 fflc12 * me2237 2,230 100 315 0.32 285 325 fflc21 * me2407 2,400 125 245 0.41 208 232 fflc13 * me2867 2,860 100 385 0.27 353 400 fflc31 * me3057 3,050 150 245 0.46 192 212 fflc22 * me3067 3,060 125 315 0.35 263 2100 fflc14 * me3347 3,340 100 455 0.24 400 400 fflc41 * me3677 3,670 175 245 0.51 180 199 fflc32 * me3887 3,880 150 315 0.38 242 270 fflc23 * me3927 3,920 125 385 0.28 334 378 fflc15 * me3987 3,980 100 525 0.22 400 400 fflc16 * me4457 4,450 100 595 0.21 400 400 fflc24 * me4587 4,580 125 455 0.26 374 400 fflc42 * me4687 4,680 175 315 0.42 229 251 fflc33 * me4997 4,990 150 385 0.32 303 337 fflc25 * me5457 5,450 125 525 0.24 400 400 fflc34 * me5827 5,820 150 455 0.29 349 393 fflc43 * me6017 6,010 175 385 0.35 287 318 fflc26 * me6107 6,100 125 595 0.22 400 400 fflc35 * me6937 6,930 150 525 0.26 400 400 fflc44 * me7017 7,010 175 455 0.31 329 365 fflc36 * me7767 7,760 150 595 0.24 400 400 fflc45 * me8357 8,350 175 525 0.28 383 400 fflc46 * me9357 9,350 175 595 0.26 400 400 * insert f for female terminals or m for male terminals
dc filtering 50 june 2015 medium power film capacitors fflc calculation form specification calculations capacitance c (f) working voltage u w (v) rms current i rms (arms) frequency f (hz) ripple voltage ur (v) ambient temperature amb (c) lifetime @ u w ,i rms and amb hours parasitic inductance l (nh) cooling conditions pn capacitance c (f) rated voltage u n (v) serial resistance r s (m) thermal resistance between r th1 (c/w) hot spot and case thermal resistance between r th2 (c/w) case and ambient air your choice maximum ripple voltage u rmax = 0.2 u n u rmax = v the maximum ripple voltage of the selected capacitor must be in any case higher than the ripple voltage of your application ratio vw/vn = u w /u n = joule losses p j = r s xi rms 2 p j = w dielectric losses p d = qxtg 0=qx 2.10 -4 p d = w hot spot temperature hs = amb +(p j +p d )x(r th1 +r th2 ) hs = c the hot spot temperature must be in any case lower than 85c lifetime expectancy vs hot spot temperature and voltage 1.4 1.3 1.2 1.1 1.0 0.9 0.8 100 1,000 10,000 100,000 1,000,000 lifetime expectancy (hours) uw/un hs = 70? hs = 85? hs = 55? expected lifetime at hot spot calculated and u = u w
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