® DR Series High Power Density, High Efficiency, Shielded Inductors Description • 125C maximum total temperature operation • Four sizes of shielded drum core inductors • Inductance range from 0.33uH to 1000uH • Current range up to 56 Amps peak • Magnetic shielding • Secure mounting 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 Packaging • Storage temperature range: -40C to +125C • Supplied in tape and reel packaging, 1350 (DR73), • Operating ambient temperature range: -40C to +125C 1100 (DR74), 600 (DR125), and 350 (DR127) per reel (range is application specific) • Infrared reflow temperature: +240C for 30 seconds max. (1) (2) (3) (4) (5) Part Number Rated OCL Irms Isat DCR Volt-uSec Inductance +/-20% Amperes Amperes (Ω)Typ. (µH) (µH) Peak Typ. DR73-R33 0.33 0.306 6.21 14.4 0.0073 1.98 DR73-1R0 1.00 0.992 5.28 7.97 0.0102 3.56 DR73-1R5 1.50 1.482 4.67 6.52 0.0130 4.36 DR73-2R2 2.20 2.070 4.15 5.52 0.0165 5.15 DR73-3R3 3.30 3.540 3.31 4.22 0.0259 6.73 DR73-4R7 4.70 4.422 3.09 3.78 0.0297 7.52 DR73-6R8 6.80 6.480 2.55 3.12 0.0435 9.11 DR73-8R2 8.20 8.930 2.19 2.66 0.0592 10.7 DR73-100 10.0 10.30 2.08 2.47 0.0656 11.5 DR73-150 15.0 15.01 1.83 2.05 0.0844 13.9 DR73-220 22.0 22.65 1.62 1.67 0.107 17.0 DR73-330 33.0 34.41 1.31 1.35 0.166 21.0 DR73-470 47.0 48.62 1.08 1.14 0.241 24.9 DR73-680 68.0 68.91 0.89 0.96 0.358 29.7 DR73-820 82.0 80.37 0.86 0.89 0.384 32.1 DR73-101 100 101.4 0.73 0.79 0.527 36.0 DR73-151 150 150.9 0.58 0.65 0.851 44.0 DR73-221 220 223.3 0.52 0.53 1.05 53.5 DR73-331 330 325.5 0.42 0.44 1.59 64.5 DR73-471 470 465.8 0.35 0.37 2.36 77.2 DR73-681 680 676.5 0.29 0.31 3.47 93.1 DR73-821 820 821.7 0.27 0.28 3.93 103 DR73-102 1000 995.0 0.26 0.25 4.34 113 DR74-R33 0.33 0.294 6.26 18.4 0.0074 1.71 DR74-1R0 1.00 0.952 5.39 10.2 0.0099 3.08 DR74-1R5 1.50 1.422 4.94 8.35 0.0118 3.76 DR74-2R2 2.20 1.986 4.76 7.06 0.0126 4.45 DR74-3R3 3.30 3.396 3.94 5.40 0.0183 5.81 DR74-4R7 4.70 5.182 3.34 4.37 0.0254 7.18 DR74-6R8 6.80 7.344 2.60 3.67 0.0418 8.55 DR74-8R2 8.20 8.566 2.53 3.40 0.0441 9.23 DR74-100 10.0 9.882 2.41 3.17 0.0489 9.92 DR74-150 15.0 16.09 2.11 2.48 0.0637 12.7 DR74-220 22.0 21.73 1.75 2.13 0.0925 14.7 (1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc. (4) DCR limits @ 20°C. (2) RMS current for an approximate ∆T of 40°C without core loss. It is (5) Applied Volt-Time product (V-µS) across the inductor. This value represent the recommended that the temperature of the part not exceed 125°C. applied V-µS at 100KHz necessary to generate a core loss equal to 10% of the (3) Peak current for approximate 30% roll off at 20°C. total losses for 40°C temperature rise. ® DR Series High Power Density, High Efficiency, Shielded Inductors (1) (2) (3) (4) (5) Part Number Rated OCL Irms Isat DCR Volt-uSec Inductance +/-20% Amperes Amperes (Ω)Typ. (µH) (µH) Peak Typ. DR74-330 33.0 33.01 1.41 1.73 0.143 18.1 DR74-470 47.0 49.64 1.15 1.41 0.216 22.2 DR74-680 68.0 69.67 1.03 1.19 0.265 26.3 DR74-820 82.0 80.95 0.91 1.11 0.345 28.4 DR74-101 100 101.6 0.86 0.99 0.383 31.8 DR74-151 150 150.0 0.69 0.81 0.591 38.6 DR74-221 220 227.0 0.56 0.66 0.907 47.5 DR74-331 330 335.6 0.45 0.54 1.41 57.8 DR74-471 470 465.3 0.40 0.46 1.74 68.1 DR74-681 680 671.2 0.33 0.38 2.58 81.7 DR74-821 820 812.7 0.31 0.35 2.93 89.9 DR74-102 1000 1009 0.27 0.31 3.89 100 DR125-R47 0.47 0.456 17.6 33.0 0.0018 3.17 DR125-1R0 1.00 0.894 15.0 23.6 0.0024 4.43 DR125-1R5 1.50 1.478 13.8 18.3 0.0029 5.70 DR125-2R2 2.20 2.208 10.9 15.0 0.0045 6.97 DR125-3R3 3.30 3.084 9.26 12.7 0.0063 8.23 DR125-4R7 4.70 5.274 7.18 9.71 0.0105 10.8 DR125-6R8 6.80 6.588 6.64 8.68 0.0123 12.0 DR125-8R2 8.20 8.048 5.54 7.86 0.0176 13.3 DR125-100 10.0 9.654 5.35 7.17 0.0189 14.6 DR125-150 15.0 15.35 4.27 5.69 0.0298 18.4 DR125-220 22.0 22.36 3.70 4.71 0.0396 22.2 DR125-330 33.0 33.74 3.28 3.84 0.0505 27.2 DR125-470 47.0 47.47 2.71 3.24 0.0740 32.3 DR125-680 68.0 67.91 2.22 2.70 0.101 38.6 DR125-820 82.0 86.89 2.05 2.39 0.128 43.7 DR125-101 100 102.7 1.78 2.20 0.170 47.5 DR125-151 150 151.1 1.48 1.81 0.248 57.6 DR125-221 220 216.8 1.19 1.51 0.384 69.0 DR125-331 330 332.6 1.06 1.22 0.482 85.5 DR125-471 470 473.1 0.87 1.02 0.718 102 DR125-681 680 679.8 0.70 0.85 1.10 122 DR125-821 820 828.0 0.60 0.77 1.49 135 DR125-102 1000 1008 0.57 0.70 1.69 149 DR125-124 120000 120630 0.060 0.069 150 1521 DR127-R47 0.47 0.419 17.9 56.0 0.00195 3.50 DR127-1R0 1.00 0.821 15.5 40.0 0.00313 4.90 DR127-1R5 1.50 1.357 13.5 31.1 0.00341 6.30 DR127-2R2 2.20 2.027 12.5 25.5 0.00402 7.70 DR127-3R3 3.30 2.831 10.5 21.5 0.00567 9.10 DR127-4R7 4.70 4.841 8.25 16.5 0.00917 11.9 DR127-6R8 6.80 7.387 7.34 13.3 0.0116 14.7 DR127-8R2 8.20 8.861 6.32 12.2 0.0157 16.1 DR127-100 10.0 10.47 6.04 11.2 0.0172 17.5 DR127-150 15.0 14.09 5.03 9.66 0.0247 20.3 DR127-220 22.0 22.93 4.00 7.57 0.0391 25.9 DR127-330 33.0 33.92 3.23 6.22 0.0600 31.5 DR127-470 47.0 47.05 2.95 5.28 0.0719 37.1 DR127-680 68.0 66.48 2.44 4.44 0.105 44.1 DR127-820 82.0 79.75 2.09 4.06 0.143 48.3 DR127-101 100 99.31 1.96 3.64 0.163 53.9 DR127-151 150 144.9 1.59 3.01 0.247 65.1 DR127-221 220 221.5 1.29 2.43 0.376 80.5 DR127-331 330 323.6 1.04 2.01 0.574 97.3 DR127-471 470 467.1 0.85 1.68 0.861 117 DR127-681 680 676.7 0.76 1.39 1.08 141 DR127-821 820 818.1 0.65 1.27 1.47 155 DR127-102 1000 1005 0.61 1.14 1.66 172 (1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc. (4) DCR limits @ 20°C. (2) RMS current for an approximate ∆T of 40°C without core loss. It is (5) Applied Volt-Time product (V-µS) across the inductor. This value represent the recommended that the temperature of the part not exceed 125°C. applied V-µS at 100KHz necessary to generate a core loss equal to 10% of the (3) Peak current for approximate 30% roll off at 20°C. total losses for 40°C temperature rise. ® DR Series High Power Density, High Efficiency, Shielded Inductors Mechanical Diagrams DR73 Series BOTTOM VIEW SCHEMATIC TOP VIEW RECOMMENDED PCB LAYOUT 6.0 FRONT VIEW 1 2.50 7.6 Max 7.6 DR73 2.0 Max 3.25 3.55 ### Max 2 8.50 1.13 DR74 Series BOTTOM VIEW SCHEMATIC RECOMMENDED PCB LAYOUT TOP VIEW FRONT VIEW 7.6 1 2.50 Max 7.6 DR74 2.0 Max 4.35 ### 3.25 Max 2 1.13 8.50 DR125 Series BOTTOM VIEW FRONT VIEW TOP VIEW SCHEMATIC RECOMMENDED PCB LAYOUT 2.05 Typ. 13.80 1 6.00 4.90 12.50 1 2 DR125-### Max 1 2 Typ Max 5.50 wwllyy R 2 12.50 Max 3.85 10 DR127 Series BOTTOM VIEW FRONT VIEW RECOMMENDED PCB LAYOUT TOP VIEW SCHEMATIC 2.05 Typ. 13.80 1 4.90 12.50 8.00 1 2 5.50 DR127-### Typ Max Max 12 wwllyy R 12.50 2 3.85 Max 10 Dimensions in Millimeters. ### = Inductance value per family chart wwllyy = (date code) R = revision level DR73 DR74 xxy xxy DR125-### wwllyy R DR127-### wwllyy R ® DR Series High Power Density, High Efficiency, Shielded Inductors Packaging Information DR73 Series Ş1.50 +0.1/-0.0 12.00 2.00 ±0.1 Ş1.50 Min. 4.00 A 1.75±0.10 1 7.50±0.1 16.00 ±0.3 Bo ACTUAL SIZE DR73 2 Ko Ao A Ao=7.90mm User direction of feed Bo=7.90mm SECTION A-A Parts packaged on 13" Diameter reel, Ko=3.80mm 1,350 parts per reel. DR74 Series Ş1.50 +0.1/-0.0 12.00 2.00 ±0.1 Ş1.50 Min. 4.00 A 1.75±0.10 1 7.50±0.1 16.00 ±0.3 Bo ACTUAL SIZE DR74 2 Ao Ko A Ao=7.90mm SECTION A-A User direction of feed Bo=7.90mm Parts packaged on 13" Diameter reel, Ko=4.70mm 1,100 parts per reel. DR125 Series 4.0 1.5 dia +0.1/-0.0 2.0 1.5 dia A min 1.7 1 11.5 24.0 +/-0.3 B0 ACTUAL SIZE 2 DR125 A0 16.00 A K0 Ao=13.0mm SECTION A-A Bo=13.0mm User direction of feed Parts packaged on 13" Diameter reel, Ko=6.30mm 600 parts per reel. DR127 Series 4.0 1.5 dia +0.1/-0.0 2.0 1.5 dia A min 1.7 1 11.5 24.0 +/-0.3 B0 ACTUAL SIZE DR127 2 Ao=13.0mm A A0 20.00 Bo=13.0mm K0 Parts packaged on 13" Diameter reel, SECTION A-A Ko=8.30mm User direction of feed 350 parts per reel. Dimensions are in millimeters. ® DR Series High Power Density, High Efficiency, Shielded Inductors Rolloff OCL vs Isat DR74 OCL vs Isat DR73 100 100 90 80 80 70 60 60 50 40 40 30 20 20 10 0 0 020 4060 80 100 120 140 160 020 40 6080 100 120 140 160 180 % of Isat % of Isat OCL vs Isat DR127 OCL vs Isat DR125 100 100 90 90 80 80 70 70 60 60 50 50 40 40 30 30 20 20 10 10 0 0 010 2030 405060708090 100 110 120 130 140 150 010 2030 405060708090 100 110 120 130 140 150 % of Isat % Idc sat Core Loss Irms DERATING WITH CORE LOSS 0 10 30 50 60 70 80 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 300 KH 300 z 200 KH 0K z 1 100 KHz 50 KHz 25 KHz z OCL (%) OCL (%) OCL (%) OCL (%) ® DR Series High Power Density, High Efficiency, Shielded Inductors PM-4310 1/05 Visit us on the Web at www.cooperET.com 3601 Quantum Boulevard Boynton Beach, Florida 33426-8638 © Cooper Electronic Technologies 2005 Tel: +1-561-752-5000 Toll Free: +1-888-414-2645 Fax: +1-561-742-1178 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. 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.