description ? 165 maximum total temperature operation ? five sizes of automotive grade shielded drum core i nductors ? inductance range from 0.28uh to 1000uh ? current range up to 56 amps ? mechanical secure mounting for high shock and vibration environments ? good thermal dispersion with thermal conductive epoxy ? customized dual winding versions available upon request for sepic or flyback configurations applications ? automotive electronics (under the hood, interior/exterior) ? telematics ? dc-dc converters ? buck, boost, forward, and resonant converters ? noise filtering and filter chokes environmental data ? stor age temper ature range: -40 to +165? ? operating temperature range: -40c to +165 (range is application specific) ? solder reflo w temper ature: +260 c max. for 10 seconds max. ? complies with aec-q200 standard packaging ? supplied in tape and reel packaging, 1350 (dra73), 1100 (dra74), 750 (dra124), 600 (dra125), and 350 (dra127) per reel dra series high power density, high efficiency, shielded inductors magnetics solutions for automotive applications rohs 2 002/95/ec (1) open circuit inductance test par ameters: 100khz, 0.25v , 0.0adc, toler ance is 20% (2) irms: dc current for an approximate ? t of 40 without core loss. derating is necessar y f or a c currents . pcb layout, trace thickness and width, air-flow, and pro ximity of other heat gener ating components will aff ect the temper ature r ise . it is recommended that the temperature of the part not exceed 165 under worst case oper ating conditions v er ified in the end application. (3) isat amperes peak f or appro ximately 30% rolloff (@25 c) (4) isat amperes peak for approximately 40% rolloff (@125) (5) dcr limits @ 25 c (6) k-f actor : used to deter mine b p-p f or core loss (see g r aph). b p-p = k*l* ? i, b p-p(mt), k: (k factor from table), l: (inductance in ?), ? i (p eak to peak r ipple current in amps). (7) p ar t number definition: draxxx-xxx-r draxxx = product code and size; -xxx = inductance value in uh; r = decimal point; if no r is present, third char acter = # of z eros . -r suffix = rohs compliant p ar t number rated ocl (1) irms (2) isat (3) isat (4) dcr (5) k-factor (6) inductance h amperes amperes amperes ( ) +/-20% t yp. dra73-r33-r 0.33 0.29 8.42 14.80 11.84 0.0040 60.6 dra73-1r0-r 1.00 0.91 6.50 8.22 6.58 0.0067 33.7 dra73-1r5-r 1.50 1.36 5.39 6.73 5.38 0.0097 27.5 dra73-2r2-r 2.20 2.52 4.18 4.93 3.95 0.016 20.2 dra73-3r3-r 3.30 3.18 3.59 4.35 3.48 0.022 17.8 dra73-4r7-r 4.70 4.86 2.92 3.52 2.82 0.033 14.4 dra73-6r8-r 6.80 6.63 2.62 2.96 2.37 0.041 12.1 dra73-8r2-r 8.20 8.06 2.30 2.74 2.19 0.053 11.2 dra73-100-r 10.0 10.27 2.11 2.39 1.91 0.064 9.8 dra73-150-r 15.0 14.98 1.74 2.00 1.60 0.094 8.2 dra73-220-r 22.0 22.39 1.42 1.64 1.32 0.141 6.7 dra73-330-r 33.0 31.84 1.25 1.35 1.08 0.183 5.5 dra73-470-r 47.0 47.83 1.02 1.10 0.884 0.275 4.5 dra73-680-r 68.0 66.89 0.845 0.937 0.749 0.397 3.8 dra73-820-r 82.0 83.77 0.731 0.851 0.680 0.530 3.5 dra73-101-r 100 101.7 0.682 0.763 0.610 0.609 3.1 dra73-151-r 150 151.1 0.551 0.632 0.506 0.932 2.6 dra73-221-r 220 218.8 0.479 0.510 0.408 1.23 2.1 dra73-331-r 330 326.4 0.391 0.423 0.338 1.85 1.7 dra73-471-r 470 472.6 0.326 0.354 0.283 2.67 1.4 dra73-681-r 680 682.9 0.270 0.297 0.238 3.89 1.2 dra73-821-r 820 825.3 0.252 0.267 0.214 4.46 1.1 dra73-102-r 1000 991.9 0.235 0.239 0.192 5.15 1.0
dra series high power density, high efficiency, shielded inductors magnetics solutions for automotive applications (1) open circuit inductance test parameters: 100khz, 0.25v, 0.0adc, tolerance is 20% (2) irms: dc current for an approximate ? t of 40 without core loss. derating is necessary for ac currents. pcb layout, trace thickness and width, air-flow, and proximity of other heat generating components will affect the temperature rise. it is recommended that the temperature of the part not exceed 165 under worst case operating conditions verified in the end application. (3) isat amperes peak for approximately 30% rolloff (@25) (4) isat amperes peak for approximately 40% rolloff (@125) (5) dcr limits @ 25 (6) k-factor: used to determine b p-p for core loss (see graph). b p-p = k*l* ? i, b p-p(mt), k: (k factor from table), l: (inductance in ?), ? i (peak to peak ripple current in amps). (7) part number definition: draxxx-xxx-r draxxx = product code and size; -xxx = inductance value in uh; r = decimal point; if no r is present, third character = # of zeros. -r suffix = rohs compliant part number rated ocl (1) irms (2) isat (3) isat (4) dcr (5) k-factor (6) inductance ? amperes amperes amperes ( ) +/-20% typ. dra74-r33-r 0.33 0.288 7.26 18.40 14.72 0.0054 52.6 dra74-1r0-r 1.00 0.897 6.01 10.22 8.18 0.0078 29.2 dra74-1r5-r 1.50 1.31 5.55 8.36 6.69 0.0092 23.9 dra74-2r2-r 2.20 2.33 4.82 6.13 4.91 0.012 17.5 dra74-3r3-r 3.30 3.05 4.16 5.41 4.33 0.016 15.5 dra74-4r7-r 4.70 4.68 3.41 4.38 3.50 0.024 12.5 dra74-6r8-r 6.80 6.51 2.91 3.68 2.94 0.034 10.5 dra74-8r2-r 8.20 8.51 2.66 3.17 2.54 0.040 9.1 dra74-100-r 10.0 9.62 2.56 2.97 2.37 0.043 8.5 dra74-150-r 15.0 15.14 2.06 2.36 1.89 0.067 6.7 dra74-220-r 22.0 22.25 1.68 1.96 1.57 0.100 5.6 dra74-330-r 33.0 33.21 1.37 1.61 1.29 0.151 4.6 dra74-470-r 47.0 46.56 1.14 1.37 1.099 0.219 3.9 dra74-680-r 68.0 68.37 0.996 1.108 0.887 0.286 3.2 dra74-820-r 82.0 81.45 0.879 1.034 0.827 0.367 3.0 dra74-101-r 100 98.5 0.822 0.929 0.743 0.419 2.7 dra74-151-r 150 150.9 0.661 0.748 0.598 0.648 2.1 dra74-221-r 220 218.9 0.544 0.626 0.501 0.96 1.8 dra74-331-r 330 328.9 0.435 0.514 0.411 1.50 1.5 dra74-471-r 470 471.5 0.383 0.420 0.336 1.93 1.2 dra74-681-r 680 682.8 0.315 0.352 0.282 2.86 1.0 dra74-821-r 820 815.0 0.279 0.327 0.262 3.63 0.9 dra74-102-r 1000 1001.7 0.260 0.292 0.234 4.19 0.8 dra124-r47-r 0.47 0.423 15.15 30.80 24.6 0.0019 16.7 dra124-1r0-r 1.00 0.821 11.65 22.00 17.6 0.0031 12.0 dra124-1r5-r 1.50 1.36 9.36 17.11 13.7 0.0049 9.3 dra124-2r2-r 2.20 2.04 7.64 14.00 11.2 0.007 7.6 dra124-3r3-r 3.30 2.79 6.94 11.85 9.48 0.009 6.4 DRA124-4R7-R 4.70 4.74 5.47 9.06 7.25 0.014 4.9 dra124-6r8-r 6.80 7.28 4.46 7.33 5.87 0.021 4.0 dra124-8r2-r 8.20 8.88 3.87 6.70 5.36 0.028 3.6 dra124-100-r 10.0 10.37 3.67 6.16 4.93 0.031 3.3 dra124-150-r 15.0 14.10 3.10 5.31 4.25 0.044 2.9 dra124-220-r 22.0 23.00 2.44 4.16 3.33 0.071 2.3 dra124-330-r 33.0 34.13 1.98 3.42 2.74 0.108 1.9 dra124-470-r 47.0 46.27 1.78 2.91 2.325 0.134 1.6 dra124-680-r 68.0 69.77 1.454 2.369 1.895 0.201 1.3 dra124-820-r 82.0 80.57 1.285 2.232 1.786 0.257 1.2 dra124-101-r 100 98.8 1.199 2.000 1.600 0.296 1.1 dra124-151-r 150 151.7 0.967 1.621 1.297 0.454 0.9 dra124-221-r 220 209.6 0.865 1.363 1.090 0.568 0.7 dra124-331-r 330 326.9 0.690 1.092 0.874 0.892 0.6 dra124-471-r 470 473.0 0.568 0.911 0.729 1.32 0.5 dra124-681-r 680 682.1 0.466 0.759 0.607 1.96 0.4 dra124-821-r 820 826.7 0.406 0.697 0.557 2.57 0.4 dra124-102-r 1000 1001.0 0.380 0.629 0.503 2.94 0.3 dra125-r47-r 0.47 0.453 18.47 33.20 26.56 0.0016 16.7 dra125-1r0-r 1.00 0.854 15.94 23.71 18.97 0.0021 12.0 dra125-1r5-r 1.50 1.41 12.89 18.44 14.76 0.0033 9.3 dra125-2r2-r 2.20 2.12 10.61 15.09 12.07 0.0048 7.6 dra125-3r3-r 3.30 2.89 9.69 12.77 10.22 0.0058 6.4 dra125-4r7-r 4.70 4.90 7.67 9.76 7.81 0.0092 4.9 dra125-6r8-r 6.80 6.23 6.81 8.74 6.99 0.012 4.4 dra125-8r2-r 8.20 7.49 6.41 7.90 6.32 0.013 4.0 dra125-100-r 10.0 9.22 5.57 7.22 5.77 0.017 3.6
dra series high power density, high efficiency, shielded inductors magnetics solutions for automotive applications (1) open circuit inductance test par ameters: 100khz, 0.25v , 0.0adc , tolerance is 20% (2) ir ms: dc current f or an approximate ? t of 40 without core loss. derating is necessar y f or a c currents . pcb la y out, tr ace thickness and width, air-flow, and proximity of other heat generating components will affect the temperature rise. it is recommended that the temper ature of the par t not e xceed 165 under worst case oper ating conditions v er ified in the end application. (3) isat amperes peak for approximately 30% rolloff (@25) (4) isat amperes peak f or appro ximately 40% rolloff (@125 ) (5) dcr limits @ 25 c (6) k-factor: used to determine b p-p for core loss (see graph). b p-p = k*l* ? i, b p-p(mt), k: (k factor from table), l: (inductance in ?), ? i (p eak to peak r ipple current in amps). (7) part number definition: draxxx-xxx-r draxxx = product code and siz e; -xxx = inductance v alue in uh; r = decimal point; if no r is present, third char acter = # of z eros . -r suffix = rohs compliant part number rated ocl (1) irms (2) isat (3) isat (4) dcr (5) k-factor (6) i nductance ? amperes amperes amperes ( ) +/-20% typ. dra125-150-r 15.0 14.67 4.45 5.72 4.58 0.027 2.9 dra125-220-r 22.0 20.65 3.95 4.74 3.79 0.035 2.4 dra125-330-r 33.0 31.47 3.19 3.86 3.09 0.053 1.9 dra125-470-r 47.0 47.83 2.59 3.13 2.506 0.081 1.6 dra125-680-r 68.0 68.48 2.125 2.635 2.108 0.120 1.3 d ra125-820-r 82.0 80.86 2.005 2.406 1.925 0.135 1.2 d ra125-101-r 100 97.6 1.745 2.213 1.771 0.178 1.1 d ra125-151-r 150 150.0 1.409 1.785 1.428 0.273 0.9 d ra125-221-r 220 222.8 1.142 1.469 1.175 0.416 0.7 d ra125-331-r 330 325.1 0.998 1.194 0.955 0.543 0.6 d ra125-471-r 470 466.3 0.826 1.006 0.805 0.79 0.5 d ra125-681-r 680 683.3 0.673 0.834 0.667 1.20 0.4 dra125-821-r 820 813.6 0.632 0.758 0.606 1.36 0.4 dra125-102-r 1000 992.8 0.552 0.695 0.556 1.78 0.4 dra127-r47-r 0.47 0.413 22.50 56.0 44.8 0.0012 14.3 dra127-1r0-r 1.00 0.772 19.22 40.0 32.0 0.0017 10.2 dra127-1r5-r 1.50 1.27 15.32 31.1 24.9 0.0027 7.9 dra127-2r2-r 2.20 1.92 12.52 25.5 20.4 0.0040 6.5 dra127-3r3-r 3.30 3.51 9.59 18.7 14.93 0.0068 4.8 dra127-4r7-r 4.70 4.58 8.14 16.5 13.18 0.0094 4.2 dra127-6r8-r 6.80 6.72 7.32 13.3 10.67 0.012 3.4 dra127-8r2-r 8.20 8.33 6.33 12.2 9.74 0.016 3.1 dra127-100-r 10.0 9.63 6.02 11.2 8.96 0.017 2.9 dra127-150-r 15.0 14.90 4.83 9.03 7.23 0.027 2.3 dra127-220-r 22.0 21.47 3.98 7.57 6.05 0.040 1.9 dra127-330-r 33.0 32.01 3.22 6.22 4.98 0.060 1.6 dra127-470-r 47.0 47.91 2.62 5.09 4.07 0.091 1.3 dra127-680-r 68.0 68.22 2.333 4.18 3.34 0.115 1.1 dra127-820-r 82.0 83.91 2.008 3.84 3.07 0.155 1.0 dra127-101-r 100 100.8 1.888 3.46 2.77 0.175 0.9 dra127-151-r 150 151.2 1.524 2.83 2.26 0.269 0.7 dra127-221-r 220 219.8 1.253 2.35 1.88 0.398 0.6 dra127-331-r 330 328.3 1.011 1.93 1.54 0.612 0.5 dra127-471-r 470 474.5 0.827 1.62 1.29 0.91 0.4 dra127-681-r 680 676.6 0.736 1.33 1.06 1.15 0.3 dra127-821-r 820 824.6 0.637 1.22 0.978 1.54 0.3 dra127-102-r 1000 998.7 0.598 1.10 0.878 1.75 0.3 mechanical diagrams dra73 ser ies top view bottom view 7. 6 max 7. 6 max front view 3. 5 5 max ### wwllyy r 8.50 schematic 2 1 r ecommended pcb la you t 2.50 2.00 3.25 1 2 1.5 dimensions in millimeters. ### = inductance value in uh. r = decimal point. if no r is present third char acter = # of z eros wwllyy = (date code) r = revision level
top view b ottom view front view 13.8 schema tic 2 1 rec ommended pcb lay out 3.85 5.5 d ra127 ### wwllyy r 8.0 max 12.50 max 12.50 max 2.50 5.00 2 1 top view b ottom view frontvi ew 13.8 schematic 2 1 rec omme nde d pcb l ayout 3.85 5.5 d ra125 ### wwllyy r 6.0 max 12.50 max 12.50 max 2.50 5.00 1 2 t op vi ew bo t tom v iew f ront view 2 1 r ecomme nded p cb l ayout d ra124 ### wwllyy r 4 .5 max 1 2.50 max 12.50 max 2.50 5.00 5.5 3.85 13.8 1 2 mechanical diagrams dra74 series t op view bottom view 7.6 max 7.6 max front view 4.35 max ### wwllyy r 8.50 s che mat ic 2 1 recommended pc b la yout 2 .50 2.00 3.25 1 2 1.5 dra124 series dra125 ser ies dra127 ser ies dimensions in millimeters. ### = inductance value in uh. r = decimal point. if no r is present third character = # of zeros wwllyy = (date code) r = revision level dra series high power density, high efficiency, shielded inductors magnetics solutions for automotive applications
dra series high power density, high efficiency, shielded inductors magnetics solutions for automotive applications user d irect ion of feed ?.50 min. ?.50 +0. 1/-0.0 section a -a k o b0= 7.90 mm a 0= 7.90 mm k 0= 4.70 mm 4 .00 2.00 0.1 bo ao 1 .750 .10 7 .500.1 16.00 0.3 a a d r a 7 4 # # # 12.00 dra74 series a0 section a-a b0= 13. 0 0 mm a 0= 13.00 mm k 0= 4.90 mm 1.5 dia +0.1/-0.0 b0 k0 d r a 1 2 4 - # # # w w l l y y r 11.5 1.75 a 2.0 16.00 1 .5 dia min 24.0 +/-0.3 a u ser dir ecti on of feed dra124 ser ies a0 section a-a b 0= 13.00 mm a0= 13.00 mm k0= 6.30 mm 1.5 dia + 0.1/-0.0 b0 k0 d r a 1 2 5 - # # # w w l l y y r 11.5 1.75 a 2.0 16.00 1.5 dia min 24.0 +/-0.3 a user d irec tion of f e ed dra125 ser ies packaging information ? 1.50 min. ? 1.50 +0.1/-0.0 s ection a-a k o b 0 = 7.9 0 mm a 0= 7.9 0 mm k 0= 3.8 0 mm 4.00 2 .00 0.1 b o ao 1.75 0.10 7.500. 1 1 6.00 0.3 a a d r a 7 3 # # # user dire ction of feed 12.00 dra73 series dimensions are in millimeters. parts packaged on 13" diameter reel, 1 ,350 parts per reel. parts packaged on 13" diameter reel, 1,100 parts per reel. p arts packaged on 13" diameter reel, 750 par ts per reel. parts packaged on 13" diameter reel, 600 par ts per reel. a0 section a-a b0= 13. 0 0 mm a 0= 13.0 0 mm k 0= 8.30 mm 1.5 dia +0. 1/-0.0 b0 k0 d r a 1 2 7 - # # # w w l l y y r 11.5 1.75 a 2.0 20.00 1.5 dia min 24.0 +/-0.3 a u ser direc tion of feed dra127 series parts packaged on 13" diameter reel, 350 par ts per reel.
dra 73 s eries dra 74 s eries 0 10 20 30 4 0 5 0 60 70 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 total loss (w) t e m p . r i s e ( c ) 0 10 2 0 30 40 50 60 70 0 0.04 0.08 0.12 0.16 0.2 0.24 0.28 0.32 0.36 0.4 0.44 0.48 0.52 0.56 0.6 0.64 0.68 to t a l l o ss (w ) t e m p . r i s e ( c ) dra 1 24 series dra 1 25 series 0 10 20 3 0 40 50 60 7 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 total loss (w) t e m p . r i s e ( c ) 0 10 20 30 40 50 60 7 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 total loss(w ) t e m p . r i s e ( c ) d ra 1 27 series 0 10 20 30 40 50 60 70 80 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 total loss (w) t e m p . r i s e ( c ) temperature rise vs. watt loss dra series high power density, high efficiency, shielded inductors magnetics solutions for automotive applications
ocl vs isat/dra 74 ser ies o cl vs isat /dra 73 ser ies 4 0% 50 % 6 0% % o f o l - 40 25 85 125 0% 10 % 20 % 30 % 70 % c 8 0% 90 % 1 00 % 110 % 120 % 4 0% 50 % 6 0% % o f o -4 0 25 85 125 1 20 % 110 % 100 % 90 % 80 % 70 % c l 30 % 20 % 1 0% 0% 0% 10 % 20% 30 % 40% 50 % 60% 70 % 80% 90 % 100 % 110 % 120 % 0 % 10 % 20% 30 % 40% 50 % 60% 70 % 80% 90 % 100 % 110 % 120 % 130 % 140 % % of isat % of isat ocl vs isat/dra 125 series ocl vs isat /dra 124 series 40 % 50 % 60 % % o f o - 4 0 2 5 85 125 0 % 10 % 20 % 3 0% 70 % c l 80 % 9 0% 1 00 % 110 % 120 % 4 0% 5 0% 60 % % o f o -4 0 2 5 8 5 120 % 110 % 100 % 9 0% 80 % 7 0% c l 30 % 20 % 125 10 % 0 % % 0 % 10 % 20% 30 % 40% 50 % 60% 70 % 80% 90 % 100 % 110 % 120 % 130 % 140 % 150 % 160 % 0% 10 % 20% 30 % 40% 50 % 60% 70 % 80% 90 % 100 % 110 % 120 % 130 % 140 % of isat % of isat ocl vs isat /dra 127 series 40 % 50 % 60 % % o f o -4 0 25 85 125 120 % 110 % 1 00 % 90 % 80 % 70 % c l 30 % 20 % 10 % 0% 60 % 70% 80 % 90% 100 % 110 % 120 % 130 % 140 % 150 % 160 % 170 % 180 % 190 % 200 % % of isat inductance characteristics dra series high power density, high efficiency, shielded inductors magnetics solutions for automotive applications
visit us on the web at www.cooperbussmann.com 1225 broken sound pkwy. suite f boca raton, fl 33487 t el: +1-561-998-4100 toll free: +1-888-414-2645 fax: +1-561-241-6640 this bulletin is intended to present product design solutions and technical information that will help the end user with design applications. cooper electronic technologies reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. cooper electronic technologies also reserves the right to change or update, without notice, any technical information contained in this bulletin. once a product has been selected, it should be tested by the user in all possible applications. life support policy: cooper electronic t echnologies does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the company . life support systems are devices which support or sustain life, and whose failure to per form, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injur y to the user . pm-4319 3/07 cooper electr onic technologies 2007 dra series high power density, high efficiency, shielded inductors magnetics solutions for automotive applications dra 73 s eries dra 74 s eries 1mhz 500khz 300khz 2 00khz 1 00khz 50khz 0.00001 0.0001 0.001 0.01 0.1 1 1 0 100 1 10 100 10 0 b p-p (mt) c o r e l o s s ( w ) 1 mhz 500khz 300khz 200khz 100khz 50khz 0 .0001 0.001 0.01 0.1 1 10 100 1 10 100 1000 bp-p (mt) c o r e l o s s ( w ) dra 1 24 series dra 1 25 series 1 mhz 5 0 0khz 3 0 0khz 2 0 0khz 10 0khz 5 0khz 0 .0001 0.001 0.01 0.1 1 10 100 10 00 1 10 100 1 0 00 bp-p (mt) c o r e l o s s ( w ) 1mhz 500khz 300khz 200khz 1 00khz 50khz 0.0001 0.001 0.01 0.1 1 10 100 1000 1 10 100 1000 bp-p (mt) c o r e l o s s ( w ) dra 1 27 series 1mhz 500khz 300khz 200khz 100khz 50khz 0.001 0.01 0.1 1 10 100 1000 1 10 100 1000 bp-p (mt) c o r e l o s s ( w ) inductance characteristics
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