DR Series High Power Density, High Efficiency, Shielded Inductors Description RoHS 2002/95/EC • 125°C 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 • 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 ambient temperature range: -40°C to +125°C (range is application specific) • Solder reflow temperature: +260°C max. for 10 seconds max. 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 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 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 0.33 1.00 1.50 2.20 3.30 4.70 6.80 8.20 10.0 15.0 22.0 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 0.294 0.952 1.422 1.986 3.396 5.182 7.344 8.566 9.882 16.09 21.73 (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. Packaging • Supplied in tape and reel packaging, 1350 (DR73), 1100 (DR74), 600 (DR125), and 350 (DR127) per reel Irms(2) Amperes 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 6.26 5.39 4.94 4.76 3.94 3.34 2.60 2.53 2.41 2.11 1.75 Isat(3) Amperes 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 18.4 10.2 8.35 7.06 5.40 4.37 3.67 3.40 3.17 2.48 2.13 DCR(4) (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 0.0074 0.0099 0.0118 0.0126 0.0183 0.0254 0.0418 0.0441 0.0489 0.0637 0.0925 Volt-uSec(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 1.71 3.08 3.76 4.45 5.81 7.18 8.55 9.23 9.92 12.7 14.7 (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. DR Series High Power Density, High Efficiency, Shielded Inductors Part Number 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 DR125-220-R DR125-330-R DR125-470-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 DR125-124-R 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) 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 120000 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) +/-20% (µH) 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 22.36 33.74 47.47 67.91 86.89 102.7 151.1 216.8 332.6 473.1 679.8 828.0 1008 120630 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 (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. Irms(2) Amperes 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 3.70 3.28 2.71 2.22 2.05 1.78 1.48 1.19 1.06 0.87 0.70 0.60 0.57 0.060 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 Isat(3) Amperes Peak 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 4.71 3.84 3.24 2.70 2.39 2.20 1.81 1.51 1.22 1.02 0.85 0.77 0.70 0.069 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 DCR(4) (Ω) Typ. 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 0.0396 0.0505 0.0740 0.101 0.128 0.170 0.248 0.384 0.482 0.718 1.10 1.49 1.69 150 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 Volt-uSec(5) Typ. 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 22.2 27.2 32.3 38.6 43.7 47.5 57.6 69.0 85.5 102 122 135 149 1521 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 (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. DR Series High Power Density, High Efficiency, Shielded Inductors Mechanical Diagrams DR73 Series BOTTOM VIEW TOP VIEW FRONT VIEW 6.0 RECOMMENDED PCB LAYOUT 7.6 Max 2.0 1 2.50 7.6 Max 3.55 Max DR73 ### SCHEMATIC 3.25 2 8.50 1.13 DR74 Series BOTTOM VIEW RECOMMENDED PCB LAYOUT TOP VIEW FRONT VIEW 7.6 Max 7.6 Max 2.0 1 2.50 4.35 Max DR74 ### SCHEMATIC 3.25 2 1.13 8.50 DR125 Series BOTTOM VIEW FRONT VIEW TOP VIEW RECOMMENDED PCB LAYOUT 2.05 Typ. SCHEMATIC 13.80 1 4.90 1 Typ 2 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 PCB LAYOUT TOP VIEW 2.05 Typ. 4.90 Typ SCHEMATIC 13.80 1 2 10 Dimensions in Millimeters. 12.50 Max 8.00 Max 1 12.50 Max DR127-### wwllyy R 1 5.50 2 3.85 2 ### = Inductance value per family chart wwllyy = (date code) R = revision level DR Series High Power Density, High Efficiency, Shielded Inductors Packaging Information DR73 Series 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 Parts packaged on 13" Diameter reel, 1,350 parts per reel. DR74 Series 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 Ko Ao=7.90mm Bo=7.90mm Ko=4.70mm A Ao SECTION A-A User direction of feed Parts packaged on 13" Diameter reel, 1,100 parts per reel. DR125 Series 4.0 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 Parts packaged on 13" Diameter reel, 600 parts per reel. User direction of feed DR127 Series 4.0 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 ACTUAL SIZE DR127 2 A0 K0 SECTION A-A Dimensions are in millimeters. 20.00 A User direction of feed Parts packaged on 13" Diameter reel, 350 parts per reel. DR Series High Power Density, High Efficiency, Shielded Inductors 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 20 0 40 60 80 100 120 140 0 160 20 0 % of Isat 40 60 100 120 140 160 180 OCL vs Isat DR127 OCL vs Isat DR125 100 100 90 90 80 80 70 70 60 60 OCL (%) OCL (%) 80 % 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 % Idc sat Core Loss Irms DERATING WITH CORE LOSS 0 10 30 60 70 25 K Hz Hz z 50 K 20 0 10 0 KH KH z KH z 80 30 0 % of Losses from Irms (maximum) 50 90 92 94 95 96 97 98 99 10 20 30 40 60 80 100 200 % of Applied Volt-µSecond 300 400 600 800 1000 100 110 120 130 140 150 DR Series High Power Density, High Efficiency, Shielded Inductors PM-4310 3/07 © Cooper Electronic Technologies 2007 Visit us on the Web at www.cooperbussmann.com 1225 Broken Sound Pkwy. 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