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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: -40C to +125C * Operating temperature range: -40C to +125C (range is application specific) * Solder reflow temperature: +260C max. for 10 seconds max. Packaging * Supplied in tape and reel packaging, 1350 (DR73), 1100 (DR74), 600 (DR125), and 350 (DR127) per reel
OCL(1) +/-20% (H) 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 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) () 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 Volt-Sec(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
Description * 125C maximum total operating temperature * Four sizes of shielded drum core inductors * Inductance range from 0.33H to 1000H * 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 (H) 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
(1) Open Circuit Inductance Test Parameters: 100kHz, 0.25Vrms, 0.0Adc. (2) RMS current for an approximate T of 40C without core loss. It is recommended that the temperature of the part not exceed 125C. (3) Peak current for approximate 30% roll off at 20C. (4) DCR limits @ 20C. (5) Applied Volt-Time product (V-S) across the inductor. This value represent the applied V-S at 100kHz necessary to generate a core loss equal to 10% of the total losses for 40C temperature rise.
6) Part number definition: DRxxx-yyy-R DRxxx = product code and size, -yyy = inductance value in H, R = decimal point. If no R is present, third character = # of zeros -R suffix = RoHS compliant
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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 (H) 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
OCL(1) +/-20% (H) 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
Irms(2) Amps 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
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) () 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
Volt-Sec(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
(1) Open Circuit Inductance Test Parameters: 100kHz, 0.25Vrms, 0.0Adc. (2) RMS current for an approximate T of 40C without core loss. It is recommended that the temperature of the part not exceed 125C. (3) Peak current for approximate 30% roll off at 20C. (4) DCR limits @ 20C. (5) Applied Volt-Time product (V-S) across the inductor. This value represent the applied V-S at 100kHz necessary to generate a core loss equal to 10% of the total losses for 40C temperature rise.
6) Part number definition: DRxxx-yyy-R DRxxx = product code and size, -yyy = inductance value in H, R = decimal point. If no R is present, third character = # of zeros -R suffix = RoHS compliant
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Data Sheet 4315
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 (H) 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% (H) 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
Irms(2) Amps 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 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) () 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
Volt-Sec(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
(1) Open Circuit Inductance Test Parameters: 100kHz, 0.25Vrms, 0.0Adc. (2) RMS current for an approximate T of 40C without core loss. It is recommended that the temperature of the part not exceed 125C. (3) Peak current for approximate 30% roll off at 20C. (4) DCR limits @ 20C. (5) Applied Volt-Time product (V-S) across the inductor. This value represent the applied V-S at 100kHz necessary to generate a core loss equal to 10% of the total losses for 40C temperature rise.
6) Part number definition: DRxxx-yyy-R DRxxx = product code and size, -yyy = inductance value in H, R = decimal point. If no R is present, third character = # of zeros -R suffix = RoHS compliant
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Data Sheet 4315
Dimensions - mm DR73 Series
BOTTOM VIEW
6.0
FRONT VIEW
7.6 Max
TOP VIEW
RECOMMENDED PAD LAYOUT
2.50
SCHEMATIC
1
2.0
7.6 Max
3.55 Max
DR73 ###
3.25
2
8.50
1.13
DR74 Series
BOTTOM VIEW FRONT VIEW
7.6 Max 2.0 7.6 Max
TOP VIEW
RECOMMENDED PAD LAYOUT
2.50
SCHEMATIC
1
4.35 Max
DR74 ###
3.25
2
8.50
1.13
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 12.50 Max
1
DR125-### wwllyy R
2
5.50
2
10
3.85
DR127 Series
BOTTOM VIEW FRONT VIEW TOP VIEW RECOMMENDED PAD LAYOUT
2.05 Typ.
SCHEMATIC
13.80
4.90 2 Typ
1
12.50 Max
8.00 Max 12.50 Max
1
DR127-### wwllyy R
5.50
2
1
3.85
2
10
Dimensions in millimeters.
### = Inductance value per family chart wwllyy = (date code) R = revision level
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Data Sheet 4315
Packaging Information DR73 Series
Supplied in tape and reel packaging, 1350 parts per reel, 13" diameter reel.
O1.50 +0.1/-0.0 12.00 2.00 0.1 4.00 O1.50 Min.
A
1.750.10
1
7.500.1
DR73 xxy
Bo
16.00 0.3
2
ACTUAL SIZE DR73
Ko
Ao=7.90mm Bo=7.90mm Ko=3.80mm
Ao
A
User direction of feed
SECTION A-A
DR74 Series
Supplied in tape and reel packaging, 1100 parts per reel, 13" diameter reel.
2.00 0.1 4.00 O1.50 +0.1/-0.0 12.00 O1.50 Min.
A
1.750.10
1
7.500.1
DR74 xxy
Bo
16.00 0.3
ACTUAL SIZE DR74
2
Ko
Ao
Ao=7.90mm Bo=7.90mm Ko=4.70mm
A
User direction of feed
SECTION A-A
DR125 Series
Supplied in tape and reel packaging, 600 parts per reel, 13" diameter reel.
1.5 dia +0.1/-0.0 2.0
4.0
1.5 dia min
A
1.7
1
11.5
DR125-### wwllyy R
B0
24.0 +/-0.3
2
ACTUAL SIZE DR125
16.00
Ao=13.0mm Bo=13.0mm Ko=6.30mm
K0
A0
A
SECTION A-A
User direction of feed
DR127 Series
Supplied in tape and reel packaging, 350 parts per reel, 13" diameter reel.
1.5 dia +0.1/-0.0 2.0
4.0
1.5 dia min
A
1.7
1
11.5
DR127-### wwllyy R
B0
24.0 +/-0.3
ACTUAL SIZE DR127
Ao=13.0mm Bo=13.0mm Ko=8.30mm
Dimensions are in millimeters.
2
A0 K0
20.00
A
SECTION A-A
User direction of feed
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Data Sheet 4315
Inductance Characteristics
OCL vs Isat DR73
100 90 80 70 80 100
OCL vs Isat DR74
OCL (%)
50 40 30 20 10 0 0 20 40 60 80 100 120 140 160
OCL (%)
60
60
40
20
0 0 20 40 60 80 100 120 140 160 180
% of Isat OCL vs Isat DR125
100 90 80 70 100 90 80 70
% of Isat OCL vs Isat DR127
OCL (%)
60 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
OCL (%)
60 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
% of Isat
% Isat
Core Loss
Irms DERATING WITH CORE LOSS
0 10 30
50
% of Losses from Irms (maximum)
60
70
80
0k Hz
Hz
Hz
30
0k
20
10
0k
kH z
90 92
94 95 96
97
98
99 10 20 30 40 60 80 100 200 300 400 600 800 1000
% of Applied Volt-Second
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
50
25
kH z
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.
(c) 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
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Data Sheet 4315

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