description ? 125c maximum total temperature operation ? low profile surface mount inductor ? 12.5mm x 12.5mm x 4.5mm shielded drum core ? ferrite core material ? inductance range from 0.47h to 1000h ? current range from 24.4 amps to 0.44 amps ? frequency range up to 1mhz applications ? notebook power, lcd panels ? computer, dvd players, and portable power devices ? 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 maximum packaging ? supplied in tape and reel packaging, 750 per reel dr124 series low profile power inductors part number rated ocl (1) irms(2) isat (3) dcr dcr k-factor inductance h20% amperes amperes m @20c m @20c (4) (h) (typical) (maximum) dr124-r47-r 0.47 0.42 16.0 24.40 2.2 2.7 17.51 dr124-1r0-r 1.0 0.83 13.9 18.00 3.00 3.6 12.50 dr124-1r5-r 1.5 1.37 11.1 14.00 4.75 5.7 9.73 dr124-2r2-r 2.2 2.04 9.1 11.45 5.92 7.1 7.96 dr124-3r9-r 3.9 3.80 7.0 8.40 12.50 15.0 5.84 dr124-4r7-r 4.7 4.88 6.5 7.65 13.50 16.2 5.15 dr124-6r8-r 6.8 6.10 5.6 6.47 18.06 21.7 4.61 dr124-8r2-r 8.2 7.45 5.2 6.22 21.67 26.0 4.17 dr124-100-r 10 8.94 4.5 5.80 23.33 28.0 3.81 dr124-120-r 12 11.5 4.1 4.96 31.67 38.0 3.50 dr124-150-r 15 14.2 3.6 4.62 37.30 44.8 3.02 dr124-180-r 18 16.2 3.4 4.32 46.97 56.4 2.82 dr124-220-r 22 20.7 3.2 3.83 53.99 64.8 2.50 dr124-270-r 27 25.7 2.8 3.44 66.67 80.0 2.24 dr124-330-r 33 31.2 2.6 3.12 80.83 97.0 2.04 dr124-390-r 39 37.3 2.3 2.85 110.00 132.0 1.86 dr124-470-r 47 44.0 2.2 2.63 124.66 149.6 1.72 dr124-560-r 56 54.9 2.0 2.35 144.32 173.2 1.54 dr124-680-r 68 67.1 1.8 2.13 183.33 220.0 1.39 dr124-820-r 82 80.5 1.7 1.94 212.72 255.3 1.27 DR124-101-R 100 95.1 1.5 1.79 256.67 308.0 1.17 dr124-121-r 120 111 1.3 1.65 311.18 373.4 1.08 dr124-151-r 150 146 1.3 1.44 371.02 445.2 0.94 dr124-181-r 180 179 1.1 1.30 501.66 602.0 0.87 dr124-221-r 220 216 1.0 1.15 558.00 669.6 0.77 dr124-271-r 270 256 0.88 1.09 725.00 870.0 0.71 dr124-331-r 330 327 0.83 0.92 825.00 990.0 0.63 dr124-471-r 470 460 0.68 0.74 1242.50 1491.0 0.53 dr124-681-r 680 669 0.56 0.65 1845.83 2215.0 0.45 dr124-821-r 820 825 0.53 0.62 2109.17 2351.0 0.40 dr124-102-r 1000 998 0.44 0.53 2898.00 3477.00 0.37 (1) open circuit inductance test parameters: 100khz, 0.25v, 0.0adc. (2) irms: dc current for an approximate 3t of 40c 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 125c under worst case operating conditions verified in the end application. (3) isat amperes peak for approximately 25% rolloff (@25c) (4) k-factor: used to determine b p-p for core loss (see graph). b p-p = k*l*3i, b p-p(mt), k: (k factor from table), l: (inductance in h), 3i (peak to peak ripple current in amps). (5) part number definition: dr124-xxx-r dr124 = 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
dr124 series low profile power inductors core loss 1mhz 100khz 200khz 3 00khz 500khz 0.0001 0.001 0.01 0.1 1 10 100 1 10 100 1000 bp - p ( m t ) core lo ss (w) 11 dr124-### wwlly y r 4.0 ko=5.2 mm b1=10 mm a1=10mm bo=1 3 .2 mm ao=1 3 .2 mm bo ko s ection a-a b 1 1.5 di a +0.1/-0.0 1.5 di a min a 1.75 a u s er direction of feed 24.0 ao a1 12.6 16.0 parts packaged on 13" diameter reel, 750 parts per reel. packaging information dimensions are in millimeters. wwlly = date code, r = revision level. 12.50 m a x 4.5 m a x 21 dr124-### wwllyy r 10 s chematic 2 bottom view 5.00 typ 2.05 typ. 1 12.50 m a x 2 front view top view 5.50 2.65 1 12.9 recommended pcb layout mechanical diagrams
ocl v s . i s at 0.0 % 20.0 % 40.0 % 60.0 % 8 0.0 % 100.0 % 120.0 % 0.0 % 20.0 % 40.0 % 60.0 %8 0.0 % 100.0 % 120.0 % % i s at % ocl + 8 5 deg. c +25 deg. c -40 deg. c inductance characteristics dr124 series low profile power inductors temperature rise vs. loss 0 20 40 60 8 0 100 120 00.40. 8 1.2 1.6 2 total pow er lo ss (w) te m perat ure ri s e ( oc ) 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 d istribution of any products. cooper electronic technologies also reserves the right to change or update, without notice, any technical information contained in thi s 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 d evices or systems without the express written approval of an officer of the company. life support systems are devices which support or sustain life, and whos e failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in signifi cant injury to the user. pm-4141 1111 ? cooper electronic technologies 2007
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