DRA Series High Power Density, High Efficiency, Shielded Inductors Magnetics Solutions For Automotive Applications Description RoHS 2002/95/EC • 165°C maximum total temperature operation • Five sizes of Automotive grade shielded drum core inductors • 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 • Storage temperature range: -40°C to +165°C • Operating temperature range: -40°C to +165°C (range is application specific) • Solder reflow temperature: +260°C max. for 10 seconds max. • Complies with AEC-Q200 standard Part Number DRA73-R33-R DRA73-1R0-R DRA73-1R5-R DRA73-2R2-R DRA73-3R3-R DRA73-4R7-R DRA73-6R8-R DRA73-8R2-R DRA73-100-R DRA73-150-R DRA73-220-R DRA73-330-R DRA73-470-R DRA73-680-R DRA73-820-R DRA73-101-R DRA73-151-R DRA73-221-R DRA73-331-R DRA73-471-R DRA73-681-R DRA73-821-R DRA73-102-R Rated Inductance 0.33 1.00 1.50 2.20 3.30 4.70 6.80 8.20 10.0 15.0 22.0 33.0 47.0 68.0 82.0 100 150 220 330 470 680 820 1000 OCL (1) µH +/-20% 0.29 0.91 1.36 2.52 3.18 4.86 6.63 8.06 10.27 14.98 22.39 31.84 47.83 66.89 83.77 101.7 151.1 218.8 326.4 472.6 682.9 825.3 991.9 Packaging • Supplied in tape and reel packaging, 1350 (DRA73), 1100 (DRA74), 750 (DRA124), 600 (DRA125), and 350 (DRA127) per reel Irms (2) Amperes Isat (3) Amperes Isat (4) Amperes 8.42 6.50 5.39 4.18 3.59 2.92 2.62 2.30 2.11 1.74 1.42 1.25 1.02 0.845 0.731 0.682 0.551 0.479 0.391 0.326 0.270 0.252 0.235 14.80 8.22 6.73 4.93 4.35 3.52 2.96 2.74 2.39 2.00 1.64 1.35 1.10 0.937 0.851 0.763 0.632 0.510 0.423 0.354 0.297 0.267 0.239 11.84 6.58 5.38 3.95 3.48 2.82 2.37 2.19 1.91 1.60 1.32 1.08 0.884 0.749 0.680 0.610 0.506 0.408 0.338 0.283 0.238 0.214 0.192 (1) Open Circuit Inductance test parameters: 100kHz, 0.25V, 0.0Adc, tolerance is ±20% (2) Irms: DC current for an approximate ∆T of 40°C 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°C under worst case operating conditions verified in the end application. (3) Isat Amperes peak for approximately 30% rolloff (@25°C) (4) Isat Amperes peak for approximately 40% rolloff (@125°C) DCR (5) (Ω) Typ. 0.0040 0.0067 0.0097 0.016 0.022 0.033 0.041 0.053 0.064 0.094 0.141 0.183 0.275 0.397 0.530 0.609 0.932 1.23 1.85 2.67 3.89 4.46 5.15 K-factor (6) 60.6 33.7 27.5 20.2 17.8 14.4 12.1 11.2 9.8 8.2 6.7 5.5 4.5 3.8 3.5 3.1 2.6 2.1 1.7 1.4 1.2 1.1 1.0 (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 µH), ∆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 DRA Series High Power Density, High Efficiency, Shielded Inductors Magnetics Solutions For Automotive Applications Part Number DRA74-R33-R DRA74-1R0-R DRA74-1R5-R DRA74-2R2-R DRA74-3R3-R DRA74-4R7-R DRA74-6R8-R DRA74-8R2-R DRA74-100-R DRA74-150-R DRA74-220-R DRA74-330-R DRA74-470-R DRA74-680-R DRA74-820-R DRA74-101-R DRA74-151-R DRA74-221-R DRA74-331-R DRA74-471-R DRA74-681-R DRA74-821-R DRA74-102-R DRA124-R47-R DRA124-1R0-R DRA124-1R5-R DRA124-2R2-R DRA124-3R3-R DRA124-4R7-R DRA124-6R8-R DRA124-8R2-R DRA124-100-R DRA124-150-R DRA124-220-R DRA124-330-R DRA124-470-R DRA124-680-R DRA124-820-R DRA124-101-R DRA124-151-R DRA124-221-R DRA124-331-R DRA124-471-R DRA124-681-R DRA124-821-R DRA124-102-R DRA125-R47-R DRA125-1R0-R DRA125-1R5-R DRA125-2R2-R DRA125-3R3-R DRA125-4R7-R DRA125-6R8-R DRA125-8R2-R DRA125-100-R Rated Inductance 0.33 1.00 1.50 2.20 3.30 4.70 6.80 8.20 10.0 15.0 22.0 33.0 47.0 68.0 82.0 100 150 220 330 470 680 820 1000 0.47 1.00 1.50 2.20 3.30 4.70 6.80 8.20 10.0 15.0 22.0 33.0 47.0 68.0 82.0 100 150 220 330 470 680 820 1000 0.47 1.00 1.50 2.20 3.30 4.70 6.80 8.20 10.0 OCL (1) µH +/-20% 0.288 0.897 1.31 2.33 3.05 4.68 6.51 8.51 9.62 15.14 22.25 33.21 46.56 68.37 81.45 98.5 150.9 218.9 328.9 471.5 682.8 815.0 1001.7 0.423 0.821 1.36 2.04 2.79 4.74 7.28 8.88 10.37 14.10 23.00 34.13 46.27 69.77 80.57 98.8 151.7 209.6 326.9 473.0 682.1 826.7 1001.0 0.453 0.854 1.41 2.12 2.89 4.90 6.23 7.49 9.22 Irms (2) Amperes Isat (3) Amperes Isat (4) Amperes 7.26 6.01 5.55 4.82 4.16 3.41 2.91 2.66 2.56 2.06 1.68 1.37 1.14 0.996 0.879 0.822 0.661 0.544 0.435 0.383 0.315 0.279 0.260 15.15 11.65 9.36 7.64 6.94 5.47 4.46 3.87 3.67 3.10 2.44 1.98 1.78 1.454 1.285 1.199 0.967 0.865 0.690 0.568 0.466 0.406 0.380 18.47 15.94 12.89 10.61 9.69 7.67 6.81 6.41 5.57 18.40 10.22 8.36 6.13 5.41 4.38 3.68 3.17 2.97 2.36 1.96 1.61 1.37 1.108 1.034 0.929 0.748 0.626 0.514 0.420 0.352 0.327 0.292 30.80 22.00 17.11 14.00 11.85 9.06 7.33 6.70 6.16 5.31 4.16 3.42 2.91 2.369 2.232 2.000 1.621 1.363 1.092 0.911 0.759 0.697 0.629 33.20 23.71 18.44 15.09 12.77 9.76 8.74 7.90 7.22 14.72 8.18 6.69 4.91 4.33 3.50 2.94 2.54 2.37 1.89 1.57 1.29 1.099 0.887 0.827 0.743 0.598 0.501 0.411 0.336 0.282 0.262 0.234 24.6 17.6 13.7 11.2 9.48 7.25 5.87 5.36 4.93 4.25 3.33 2.74 2.325 1.895 1.786 1.600 1.297 1.090 0.874 0.729 0.607 0.557 0.503 26.56 18.97 14.76 12.07 10.22 7.81 6.99 6.32 5.77 (1) Open Circuit Inductance test parameters: 100kHz, 0.25V, 0.0Adc, tolerance is ±20% (2) Irms: DC current for an approximate ∆T of 40°C 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°C under worst case operating conditions verified in the end application. (3) Isat Amperes peak for approximately 30% rolloff (@25°C) (4) Isat Amperes peak for approximately 40% rolloff (@125°C) DCR (5) (Ω) Typ. 0.0054 0.0078 0.0092 0.012 0.016 0.024 0.034 0.040 0.043 0.067 0.100 0.151 0.219 0.286 0.367 0.419 0.648 0.96 1.50 1.93 2.86 3.63 4.19 0.0019 0.0031 0.0049 0.007 0.009 0.014 0.021 0.028 0.031 0.044 0.071 0.108 0.134 0.201 0.257 0.296 0.454 0.568 0.892 1.32 1.96 2.57 2.94 0.0016 0.0021 0.0033 0.0048 0.0058 0.0092 0.012 0.013 0.017 K-factor (6) 52.6 29.2 23.9 17.5 15.5 12.5 10.5 9.1 8.5 6.7 5.6 4.6 3.9 3.2 3.0 2.7 2.1 1.8 1.5 1.2 1.0 0.9 0.8 16.7 12.0 9.3 7.6 6.4 4.9 4.0 3.6 3.3 2.9 2.3 1.9 1.6 1.3 1.2 1.1 0.9 0.7 0.6 0.5 0.4 0.4 0.3 16.7 12.0 9.3 7.6 6.4 4.9 4.4 4.0 3.6 (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 µH), ∆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 DRA Series High Power Density, High Efficiency, Shielded Inductors Magnetics Solutions For Automotive Applications Part Number DRA125-150-R DRA125-220-R DRA125-330-R DRA125-470-R DRA125-680-R DRA125-820-R DRA125-101-R DRA125-151-R DRA125-221-R DRA125-331-R DRA125-471-R DRA125-681-R DRA125-821-R DRA125-102-R DRA127-R47-R DRA127-1R0-R DRA127-1R5-R DRA127-2R2-R DRA127-3R3-R DRA127-4R7-R DRA127-6R8-R DRA127-8R2-R DRA127-100-R DRA127-150-R DRA127-220-R DRA127-330-R DRA127-470-R DRA127-680-R DRA127-820-R DRA127-101-R DRA127-151-R DRA127-221-R DRA127-331-R DRA127-471-R DRA127-681-R DRA127-821-R DRA127-102-R Rated Inductance 15.0 22.0 33.0 47.0 68.0 82.0 100 150 220 330 470 680 820 1000 0.47 1.00 1.50 2.20 3.30 4.70 6.80 8.20 10.0 15.0 22.0 33.0 47.0 68.0 82.0 100 150 220 330 470 680 820 1000 OCL (1) µH +/-20% 14.67 20.65 31.47 47.83 68.48 80.86 97.6 150.0 222.8 325.1 466.3 683.3 813.6 992.8 0.413 0.772 1.27 1.92 3.51 4.58 6.72 8.33 9.63 14.90 21.47 32.01 47.91 68.22 83.91 100.8 151.2 219.8 328.3 474.5 676.6 824.6 998.7 Irms (2) Amperes Isat (3) Amperes Isat (4) Amperes 4.45 3.95 3.19 2.59 2.125 2.005 1.745 1.409 1.142 0.998 0.826 0.673 0.632 0.552 22.50 19.22 15.32 12.52 9.59 8.14 7.32 6.33 6.02 4.83 3.98 3.22 2.62 2.333 2.008 1.888 1.524 1.253 1.011 0.827 0.736 0.637 0.598 5.72 4.74 3.86 3.13 2.635 2.406 2.213 1.785 1.469 1.194 1.006 0.834 0.758 0.695 56.0 40.0 31.1 25.5 18.7 16.5 13.3 12.2 11.2 9.03 7.57 6.22 5.09 4.18 3.84 3.46 2.83 2.35 1.93 1.62 1.33 1.22 1.10 4.58 3.79 3.09 2.506 2.108 1.925 1.771 1.428 1.175 0.955 0.805 0.667 0.606 0.556 44.8 32.0 24.9 20.4 14.93 13.18 10.67 9.74 8.96 7.23 6.05 4.98 4.07 3.34 3.07 2.77 2.26 1.88 1.54 1.29 1.06 0.978 0.878 (1) Open Circuit Inductance test parameters: 100kHz, 0.25V, 0.0Adc, tolerance is ±20% (2) Irms: DC current for an approximate ∆T of 40°C 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°C under worst case operating conditions verified in the end application. (3) Isat Amperes peak for approximately 30% rolloff (@25°C) (4) Isat Amperes peak for approximately 40% rolloff (@125°C) DCR (5) (Ω) Typ. 0.027 0.035 0.053 0.081 0.120 0.135 0.178 0.273 0.416 0.543 0.79 1.20 1.36 1.78 0.0012 0.0017 0.0027 0.0040 0.0068 0.0094 0.012 0.016 0.017 0.027 0.040 0.060 0.091 0.115 0.155 0.175 0.269 0.398 0.612 0.91 1.15 1.54 1.75 K-factor (6) 2.9 2.4 1.9 1.6 1.3 1.2 1.1 0.9 0.7 0.6 0.5 0.4 0.4 0.4 14.3 10.2 7.9 6.5 4.8 4.2 3.4 3.1 2.9 2.3 1.9 1.6 1.3 1.1 1.0 0.9 0.7 0.6 0.5 0.4 0.3 0.3 0.3 (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 µH), ∆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 Mechanical Diagrams DRA73 Series BOTTOM VIEW FRONT VIEW TOP VIEW RECOMMENDED PCB LAYOU T 7.6 Max 2 7.6 Max 1.5 Dimensions in Millimeters. 1 2.50 2.00 3.55 Max ### wwllyy R 1 SCHEMATIC 3.25 2 8.50 ### = 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 Mechanical Diagrams DRA74 Series BOTTOM VIEW TOP VIEW FRONT VIEW RECOMMENDED PCB LA YOUT 7.6 Max SCHEMATIC 1 2.50 7.6 Max ### wwllyy R 2 2.00 1 3.25 2 4.35 Max 8.50 1.5 DRA124 Series FRONT VIEW BOTTOM VIEW TOP VIEW RECOMMENDED PCB LAYOUT 3.85 1 12.50 Max 5.00 2 12.50 Max DRA124 ### wwllyy R 1 5.5 2 4.5 Max 13.8 2.50 DRA125 Series BOTTOM VIEW FRONTVIEW TOP VIEW RECOMMENDED PCBLAYOUT SCHEMATIC 3.85 12.50 Max 5.00 2 12.50 Max DRA125 ### wwllyy R 1 1 5.5 2 6.0 Max 2.50 13.8 DRA127 Series BOTTOM VIEW FRONT VIEW TOP VIEW RECOMMENDED PCB LAYOUT SCHEMA TIC 3.85 12.50 Max 5.00 2 12.50 Max 2.50 Dimensions in Millimeters. DRA127 ### wwllyy R 1 1 5.5 2 8.0 Max 13.8 ### = 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 Packaging Information DRA73 Series Ø1.50+0.1/-0.0 2.00 ±0.1 4.00 A 1.75±0.10 Bo A0= 7.90mm B0= 7.90 mm K0= 3.80mm 7.50±0.1 16.00 ±0.3 DRA73 ### Ø1.50 Min. A Ko Ao Parts packaged on 13" Diameter reel, 1,350 parts per reel. 12.00 SECTION A-A User direction of feed DRA74 Series Ø1.50 +0.1/-0.0 2.00 ±0.1 4.00 Ø1.50 Min. A A Ko User direction of feed Ao SECTION A-A DRA124 Series Parts packaged on 13" Diameter reel, 1,100 parts per reel. 12.00 1.5 dia +0.1/-0.0 2.0 1.5 dia min A 1.75 11.5 DRA124-### wwllyy R B0 A0= 13.00 mm B0= 13.00mm K0= 4.90 mm 7.50±0.1 16.00 ±0.3 DRA74 ### Bo A0= 7.90 mm B0= 7.90 mm K0= 4.70 mm 1.75±0.10 K0 24.0 +/-0.3 A0 SECTION A-A A 16.00 Parts packaged on 13" Diameter reel, 750 parts per reel. User direction of feed DRA125 Series 1.5 dia +0.1/-0.0 A0= 13.00 mm B0= 13.00 mm K0= 6.30 mm K0 A 1.75 11.5 24.0 +/-0.3 A0 SECTION A-A 1.5 dia min DRA125-### wwllyy R B0 2.0 A 16.00 Parts packaged on 13" Diameter reel, 600 parts per reel. User direction of feed DRA127 Series 1.5 dia +0.1/-0.0 A0= 13.00mm B0= 13.00 mm K0= 8.30mm K0 SECTION A-A 1.5 dia min 1.75 11.5 A0 24.0 +/-0.3 20.00 User direction of feed Dimensions are in millimeters. A DRA127-### wwllyy R B0 2.0 A Parts packaged on 13" Diameter reel, 350 parts per reel. DRA Series High Power Density, High Efficiency, Shielded Inductors Magnetics Solutions For Automotive Applications Temperature Rise vs. Watt Loss DRA 74 series 70 70 60 60 50 50 Temp. Rise(°C) Temp. Rise(°C) DRA 73 series 40 30 40 30 20 20 10 10 0 0 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 0.68 0.1 0.2 0.3 0.4 0.5 DRA 124 series 0.7 0.8 0.9 1 1.1 1.2 DRA 125 series 70 60 60 50 50 Temp. Rise(°C) 70 40 30 40 30 20 20 10 10 0 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 0 1.3 0.1 0.2 0.3 0.4 0.5 0.6 DRA 127 series 80 70 60 50 40 30 20 10 0 0 0.7 Total Loss (W) To t a l L o ss (W ) Temp. Rise(°C) Temp. Rise(°C) 0.6 Total Loss (W) To t a l L o ss (W ) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Total Loss (W) 0.9 1 1.1 1.2 1.3 1.4 1.5 0.8 0.9 1 1.1 1.2 1.3 DRA Series High Power Density, High Efficiency, Shielded Inductors Magnetics Solutions For Automotive Applications Inductance Characteristics OCL vs Isat/DRA 74 series OCL vs Isat/DRA 73 series 120 % 120 % 110 % 110 % 100 % 100 % 90 % 90 % 80 % -40° 70 % 60 % 25° 50 % % of O CL % of OCL 80 % - 40° 70 % 60 % 25° 50 % 40 % 40 % 85° 30 % 20 % 85° 30 % 20 % 125° 125° 10 % 10 % 0% 0% 0% 10 % 20% 30 % 40% 50 % 60% 70 % 80% 90 % 100 % 110 % 120 % 130 % 140 % 0% 10 % 20% 30 % 40% 50 % % of Isat 70 % 80% 90 % 100 % 110 % 120 % OCL vs Isat/DRA 125 series OCL vs Isat/DRA 124 series 120 % 110 % 110 % 100 % 100 % 90 % 90 % 80 % 80 % 70 % -40° 60 % 50 % % of OCL 120 % 70 % -40° 60 % 25° 50 % 25° 40 % 40 % 85° 30 % 85° 30 % 125° 20 % 20 % 10 % 10 % 125° 0% 0% 0% 10 % 20% 30 % 40% 50 % 60% 70 % 80% 90 % 100 % 110 % 120 % 130 % 140 % 150 % 160 % 0% 10 % 20% 30 % 40% 50 % % of Isat 60% 70 % 80% % of Isat OCL vs Isat/DRA 127 series 120 % 110 % 100 % 90 % -40° 80 % % of OCL % of OCL 60% % of Isat 25° 70 % 60 % 85° 50 % 125° 40 % 30 % 20 % 10 % 0% 60 % 70% 80 % 90% 100 % 110 % 120 % 130 % 140 % 150 % 160 % 170 % 180 % 190 % 200 % % of Isat 90 % 100 % 110 % 120 % 130 % 140 % DRA Series High Power Density, High Efficiency, Shielded Inductors Magnetics Solutions For Automotive Applications Inductance Characteristics DRA 73 series DRA 74 series 100 100 1MHz 1MHz 10 500kHz 1 300kHz 200kHz 300kHz 200kHz 1 Core Loss (W) Core Loss (W) 100kHz 50kHz 0.1 500kHz 10 0.01 100kHz 50kHz 0.1 0.01 0.001 0.001 0.0001 0.00001 1 10 100 100 0.0001 1 10 Bp-p (mT) 100 DRA 124 series DRA 125 series 1000 1000 1MHz 1MHz 100 100 500kHz 500kHz 300kHz 200kHz 10 100kHz 50kHz 1 300kHz 200kHz 10 100kHz Core Loss (W) Core Loss (W) 1000 Bp-p (mT) 0.1 50kHz 1 0.1 0.01 0.01 0.001 0.001 0.0001 0.0001 1 10 100 1 1000 10 100 1000 Bp-p (mT) Bp-p (mT) DRA 127 series 1000 1MHz 100 500kHz 10 200kHz Core Loss (W) 300kHz 100kHz 50kHz 1 0.1 0.01 0.001 1 10 100 1000 Bp-p (mT) PM-4319 3/07 © Cooper Electronic Technologies 2007 Visit us on the Web at www.cooperbussmann.com 1225 Broken Sound Pkwy. Suite F Boca Raton, FL 33487 Tel: +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 Technologies 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. 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