DR Series High Power Density, High Efficiency, Shielded Inductors • Magnetic shielding • Secure mounting • Ferrite core material Applications • Computer, DVD players, and portable power devices • LCD panels • DC-DC converters • Buck, boost, forward, and resonant converters • Noise filtering and filter chokes Environmental Data • Storage temperature range: -40°C to +125°C • Operating temperature range: -40°C to +125°C (range is application specific) • Solder reflow temperature: +260°C max. for 10 seconds max. Packaging • Supplied in tape and reel packaging, 1350 (DR73), 1100 (DR74), 600 (DR125), and 350 (DR127) per reel Description • 125°C maximum total operating temperature • Four sizes of shielded drum core inductors • Inductance range from 0.33µH to 1000µH • Current range up to 56 amps peak Part Number DR73-R33-R DR73-1R0-R DR73-1R5-R DR73-2R2-R DR73-3R3-R DR73-4R7-R DR73-6R8-R DR73-8R2-R DR73-100-R DR73-150-R DR73-220-R DR73-330-R DR73-470-R DR73-680-R DR73-820-R DR73-101-R DR73-151-R DR73-221-R DR73-331-R DR73-471-R DR73-681-R DR73-821-R DR73-102-R Rated Inductance (µH) 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) +/-20% (µH) 0.306 0.992 1.482 2.070 3.540 4.422 6.480 8.930 10.30 15.01 22.65 34.41 48.62 68.91 80.37 101.4 150.9 223.3 325.5 465.8 676.5 821.7 995.0 Irms(2) Amps 6.21 5.28 4.67 4.15 3.31 3.09 2.55 2.19 2.08 1.83 1.62 1.31 1.08 0.89 0.86 0.73 0.58 0.52 0.42 0.35 0.29 0.27 0.26 (1) Open Circuit Inductance Test Parameters: 100kHz, 0.25Vrms, 0.0Adc. (2) RMS current for an approximate ∆T of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C. (3) Peak current for approximate 30% roll off at 20°C. (4) DCR limits @ 20°C. (5) Applied Volt-Time product (V-µS) across the inductor. This value represent the applied V-µS at 100kHz necessary to generate a core loss equal to 10% of the total losses for 40°C temperature rise. 1207 BU-SB07327 Page 1 of 6 Isat(3) Amps Peak 14.4 7.97 6.52 5.52 4.22 3.78 3.12 2.66 2.47 2.05 1.67 1.35 1.14 0.96 0.89 0.79 0.65 0.53 0.44 0.37 0.31 0.28 0.25 DCR(4) Ω) (Ω Typ. 0.0073 0.0102 0.0130 0.0165 0.0259 0.0297 0.0435 0.0592 0.0656 0.0844 0.107 0.166 0.241 0.358 0.384 0.527 0.851 1.05 1.59 2.36 3.47 3.93 4.34 6) Part number definition: DRxxx-yyy-R DRxxx = product code and size, -yyy = inductance value in µH, R = decimal point. If no R is present, third character = # of zeros -R suffix = RoHS compliant Data Sheet 4315 Volt-µSec(5) Typ. 1.98 3.56 4.36 5.15 6.73 7.52 9.11 10.7 11.5 13.9 17.0 21.0 24.9 29.7 32.1 36.0 44.0 53.5 64.5 77.2 93.1 103 113 Part Number DR74-R33-R DR74-1R0-R DR74-1R5-R DR74-2R2-R DR74-3R3-R DR74-4R7-R DR74-6R8-R DR74-8R2-R DR74-100-R DR74-150-R DR74-220-R DR74-330-R DR74-470-R DR74-680-R DR74-820-R DR74-101-R DR74-151-R DR74-221-R DR74-331-R DR74-471-R DR74-681-R DR74-821-R DR74-102-R DR125-R47-R DR125-1R0-R DR125-1R5-R DR125-2R2-R DR125-3R3-R DR125-4R7-R DR125-6R8-R DR125-8R2-R DR125-100-R DR125-150-R DR125-180-R DR125-220-R DR125-330-R DR125-470-R DR125-560-R DR125-680-R DR125-820-R DR125-101-R DR125-151-R DR125-221-R DR125-331-R DR125-471-R DR125-681-R DR125-821-R DR125-102-R DR125-472-R DR125-124-R Rated Inductance (µH) 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 18.0 22.0 33.0 47.0 56.0 68.0 82.0 100 150 220 330 470 680 820 1000 4700 120000 Irms(2) Amps OCL(1) +/-20% (µH) 0.294 0.952 1.422 1.986 3.396 5.182 7.344 8.566 9.882 16.09 21.73 33.01 49.64 69.67 80.95 101.6 150.0 227.0 335.6 465.3 671.2 812.7 1009 0.456 0.894 1.478 2.208 3.084 5.274 6.588 8.048 9.654 15.35 17.70 22.36 33.74 47.47 55.24 67.91 86.89 102.7 151.1 216.8 332.6 473.1 679.8 828.0 1008 4720 120630 6.26 5.39 4.94 4.76 3.94 3.34 2.60 2.53 2.41 2.11 1.75 1.41 1.15 1.03 0.91 0.86 0.69 0.56 0.45 0.40 0.33 0.31 0.27 17.6 15.0 13.8 10.9 9.26 7.18 6.64 5.54 5.35 4.27 3.81 3.70 3.28 2.71 2.31 2.22 2.05 1.78 1.48 1.19 1.06 0.87 0.70 0.60 0.57 0.268 0.060 (1) Open Circuit Inductance Test Parameters: 100kHz, 0.25Vrms, 0.0Adc. (2) RMS current for an approximate ∆T of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C. (3) Peak current for approximate 30% roll off at 20°C. (4) DCR limits @ 20°C. (5) Applied Volt-Time product (V-µS) across the inductor. This value represent the applied V-µS at 100kHz necessary to generate a core loss equal to 10% of the total losses for 40°C temperature rise. 1207 BU-SB07327 Page 2 of 6 Isat Amps Peak 18.4 10.2 8.35 7.06 5.40 4.37 3.67 3.40 3.17 2.48 2.13 1.73 1.41 1.19 1.11 0.99 0.81 0.66 0.54 0.46 0.38 0.35 0.31 33.0 23.6 18.3 15.0 12.7 9.71 8.68 7.86 7.17 5.69 5.32 4.71 3.84 3.24 3.00 2.70 2.39 2.20 1.81 1.51 1.22 1.02 0.85 0.77 0.70 0.32 0.069 (3) DCR(4) Ω) (Ω Typ. 0.0074 0.0099 0.0118 0.0126 0.0183 0.0254 0.0418 0.0441 0.0489 0.0637 0.0925 0.143 0.216 0.265 0.345 0.383 0.591 0.907 1.41 1.74 2.58 2.93 3.89 0.0018 0.0024 0.0029 0.0045 0.0063 0.0105 0.0123 0.0176 0.0189 0.0298 0.0377 0.0396 0.0505 0.0740 0.102 0.101 0.128 0.170 0.248 0.384 0.482 0.718 1.10 1.49 1.69 7.53 150 6) Part number definition: DRxxx-yyy-R DRxxx = product code and size, -yyy = inductance value in µH, R = decimal point. If no R is present, third character = # of zeros -R suffix = RoHS compliant Data Sheet 4315 Volt-µSec(5) Typ. 1.71 3.08 3.76 4.45 5.81 7.18 8.55 9.23 9.92 12.7 14.7 18.1 22.2 26.3 28.4 31.8 38.6 47.5 57.8 68.1 81.7 89.9 100 3.17 4.43 5.70 6.97 8.23 10.8 12.0 13.3 14.6 18.4 19.6 22.2 27.2 32.3 34.8 38.6 43.7 47.5 57.6 69.0 85.5 102 122 135 149 322.4 1521 Part Number DR127-R47-R DR127-1R0-R DR127-1R5-R DR127-2R2-R DR127-3R3-R DR127-4R7-R DR127-6R8-R DR127-8R2-R DR127-100-R DR127-150-R DR127-220-R DR127-330-R DR127-470-R DR127-680-R DR127-820-R DR127-101-R DR127-151-R DR127-221-R DR127-331-R DR127-471-R DR127-681-R DR127-821-R DR127-102-R Rated Inductance (µH) 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 Irms(2) Amps OCL(1) +/-20% (µH) 0.419 0.821 1.357 2.027 2.831 4.841 7.387 8.861 10.47 14.09 22.93 33.92 47.05 66.48 79.75 99.31 144.9 221.5 323.6 467.1 676.7 818.1 1005 17.9 15.5 13.5 12.5 10.5 8.25 7.34 6.32 6.04 5.03 4.00 3.23 2.95 2.44 2.09 1.96 1.59 1.29 1.04 0.85 0.76 0.65 0.61 (1) Open Circuit Inductance Test Parameters: 100kHz, 0.25Vrms, 0.0Adc. (2) RMS current for an approximate ∆T of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C. (3) Peak current for approximate 30% roll off at 20°C. (4) DCR limits @ 20°C. (5) Applied Volt-Time product (V-µS) across the inductor. This value represent the applied V-µS at 100kHz necessary to generate a core loss equal to 10% of the total losses for 40°C temperature rise. 1207 BU-SB07327 Page 3 of 6 Isat Amps Peak 56.0 40.0 31.1 25.5 21.5 16.5 13.3 12.2 11.2 9.66 7.57 6.22 5.28 4.44 4.06 3.64 3.01 2.43 2.01 1.68 1.39 1.27 1.14 (3) DCR(4) Ω) (Ω Typ. 0.00195 0.00313 0.00341 0.00402 0.00567 0.00917 0.0116 0.0157 0.0172 0.0247 0.0391 0.0600 0.0719 0.105 0.143 0.163 0.247 0.376 0.574 0.861 1.08 1.47 1.66 6) Part number definition: DRxxx-yyy-R DRxxx = product code and size, -yyy = inductance value in µH, R = decimal point. If no R is present, third character = # of zeros -R suffix = RoHS compliant Data Sheet 4315 Volt-µSec(5) Typ. 3.50 4.90 6.30 7.70 9.10 11.9 14.7 16.1 17.5 20.3 25.9 31.5 37.1 44.1 48.3 53.9 65.1 80.5 97.3 117 141 155 172 Dimensions - mm DR73 Series BOTTOM VIEW TOP VIEW FRONT VIEW 6.0 RECOMMENDED PAD LAYOUT 7.6 Max 2.0 1 2.50 7.6 Max DR73 ### 3.55 Max SCHEMATIC 3.25 2 8.50 1.13 DR74 Series BOTTOM VIEW RECOMMENDED PAD LAYOUT TOP VIEW FRONT VIEW 7.6 Max 7.6 Max 2.0 1 2.50 DR74 ### 4.35 Max SCHEMATIC 3.25 2 1.13 8.50 DR125 Series BOTTOM VIEW FRONT VIEW TOP VIEW RECOMMENDED PAD LAYOUT 2.05 Typ. SCHEMATIC 13.80 1 4.90 2 Typ 1 12.50 Max 6.00 Max 1 DR125-### wwllyy R 2 5.50 2 12.50 Max 3.85 10 DR127 Series BOTTOM VIEW FRONT VIEW RECOMMENDED PAD LAYOUT TOP VIEW 2.05 Typ. 4.90 2 Typ 1 10 12.50 Max 8.00 Max 1 12.50 Max DR127-### wwllyy R 1 5.50 2 3.85 BU-SB07327 2 ### = Inductance value per family chart wwllyy = (date code) R = revision level Dimensions in millimeters. 1207 SCHEMATIC 13.80 Page 4 of 6 Data Sheet 4315 Packaging Information DR73 Series Supplied in tape and reel packaging, 1350 parts per reel, 13" diameter reel. Ø1.50 +0.1/-0.0 12.00 2.00 ±0.1 Ø1.50 Min. A 4.00 1.75±0.10 1 7.50±0.1 DR73 xxy Bo 16.00 ±0.3 ACTUAL SIZE DR73 2 A Ao Ko Ao=7.90mm Bo=7.90mm Ko=3.80mm User direction of feed SECTION A-A DR74 Series Supplied in tape and reel packaging, 1100 parts per reel, 13" diameter reel. Ø1.50 +0.1/-0.0 12.00 2.00 ±0.1 Ø1.50 Min. A 4.00 1.75±0.10 1 7.50±0.1 DR74 xxy Bo 16.00 ±0.3 ACTUAL SIZE DR74 2 A Ao Ko Ao=7.90mm Bo=7.90mm Ko=4.70mm SECTION A-A User direction of feed DR125 Series 4.0 Supplied in tape and reel packaging, 600 parts per reel, 13" diameter reel. 1.5 dia +0.1/-0.0 2.0 1.5 dia min A 1.7 1 11.5 DR125-### wwllyy R B0 24.0 +/-0.3 ACTUAL SIZE DR125 2 Ao=13.0mm Bo=13.0mm Ko=6.30mm A0 K0 A 16.00 SECTION A-A User direction of feed DR127 Series 4.0 Supplied in tape and reel packaging, 350 parts per reel, 13" diameter reel. 1.5 dia +0.1/-0.0 2.0 1.5 dia min A 1.7 1 11.5 Ao=13.0mm Bo=13.0mm Ko=8.30mm DR127-### wwllyy R B0 24.0 +/-0.3 2 A0 20.00 K0 SECTION A-A A User direction of feed Dimensions are in millimeters. 1207 BU-SB07327 Page 5 of 6 Data Sheet 4315 ACTUAL SIZE DR127 Inductance Characteristics OCL vs Isat DR74 OCL vs Isat DR73 100 100 90 80 80 60 OCL (%) OCL (%) 70 50 40 60 40 30 20 20 10 0 0 20 40 60 80 100 120 140 0 160 0 20 40 60 80 % of Isat 120 140 160 180 OCL vs Isat DR127 OCL vs Isat DR125 100 100 90 90 80 80 70 70 60 60 OCL (%) OCL (%) 100 % of Isat 50 40 50 40 30 30 20 20 10 10 0 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 0 150 0 10 20 30 40 50 60 % of Isat 70 80 90 100 110 120 130 140 150 % Isat Irms DERATING WITH CORE LOSS Core Loss 0 10 30 60 70 kH z kH z 25 10 50 Hz 0k Hz 0k 30 0k Hz 80 20 % of Losses from Irms (maximum) 50 90 92 94 95 96 97 98 99 10 20 30 40 60 80 100 200 300 400 600 800 1000 % of Applied Volt-µSecond North America Cooper Bussmann 1225 Broken Sound Parkway NW Suite F Boca Raton, FL 33487-3533 Tel: 1-561-998-4100 Fax: 1-561-241-6640 Toll Free: 1-888-414-2645 Cooper Bussmann P.O. Box 14460 St. Louis, MO 63178-4460 Tel: 1-636-394-2877 Fax: 1-636-527-1607 Europe Cooper Bussmann Cooper (UK) Limited Burton-on-the-Wolds Leicestershire • LE12 5TH UK Tel: +44 (0) 1509 882 737 Fax: +44 (0) 1509 882 786 Cooper Bussmann Avda. Santa Eulalia, 290 08223 Terrassa, (Barcelona), Spain Tel: +34 937 362 812 +34 937 362 813 Fax: +34 937 362 719 Asia Pacific Cooper Bussmann 1 Jalan Kilang Timor #06-01 Pacific Tech Centre Singapore 159303 Tel: +65 278 6151 Fax: +65 270 4160 This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Cooper Bussmann 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 Bussmann 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 perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. © 2007 Cooper Bussmann S t . L o u i s, M O 6 3 1 7 8 w w w. c o o p e r bu s s m a n n . c o m 1207 BU-SB07327 Page 6 of 6 Data Sheet 4315