description ? 125 maximum total temperature operation ? 3.1mm x 3.1mm x 1.0mm shielded drum core ? ferrite core material ? inductance range from 0.5uh to 220uh ? current range from 2.27 amps to 0.106 amps ? frequency range up to 1mhz applications ? cellular phones, digital cameras, cd players, pdas ? small lcd displays ? led driver and led flash circuits ? hard disk drives ? backlighting ? el panel environmental data ? storage temperature range: -40 to +125? ? operating temperature range: -40 to +125? (range is application specific) ? solder reflo w temper ature: +260 c max. f or 10 seconds maximum p ackaging ? supplied in tape and reel packaging, 4100 per reel sd3110 series low profile power inductors p ar t number rated ocl (1) part irms (2) isat (3) dcr ( ) k-factor inductance ( ?) marking amperes amperes typ. @ (4) (?) designator 20 sd3110-r50-r 0.50 0.44+/-30% a 1.54 2.27 0.0420 216 sd3110-r82-r 0.82 0.82+/-30% b 1.30 1.67 0.0589 191 sd3110-1r0-r 1.0 1.05+/-30% c 1.21 1.47 0.0683 169 sd3110-1r5-r 1.5 1.60+/-30% d 0.99 1.19 0.103 137 sd3110-2r2-r 2.2 2.27+/-30% e 0.82 1.00 0.149 115 sd3110-3r3-r 3.3 3.48+/-30% f 0.72 0.81 0.195 93 sd3110-4r7-r 4.7 4.96+/-30% g 0.59 0.68 0.285 78 sd3110-6r8-r 6.8 6.70+/-30% h 0.54 0.58 0.346 67 sd3110-8r2-r 8.2 8.01+/-30% i 0.48 0.53 0.432 61 SD3110-100-R 10.0 10.18+/-30% j 0.44 0.47 0.505 54 sd3110-150-r 15.0 15.32+/-20% k 0.36 0.38 0.764 44 sd3110-220-r 22.0 21.49+/-20% l 0.30 0.32 1.13 37 sd3110-330-r 33.0 32.72+/-20% m 0.26 0.26 1.50 30 sd3110-470-r 47.0 46.29+/-20% n 0.22 0.22 2.06 25 sd3110-680-r 68.0 68.04+/-20% o 0.179 0.182 3.13 21 sd3110-820-r 82.0 82.65+/-20% p 0.167 0.166 3.57 19 sd3110-101-r 100 101+/-20% q 0.146 0.150 4.72 17 sd3110-151-r 150 149+/-20% r 0.127 0.123 6.16 14 sd3110-221-r 220 219+/-20% s 0.106 0.120 9.46 12 (1) open circuit inductance test parameters: 100khz, 0.1v, 0.0adc. (2) irms: dc current for an approximate dt of 40 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 125 under worst case operating conditions verified in the end application. (3) isat amperes peak for approximately 30% rolloff (@20) (4) k-factor: used to determine b p-p for core loss (see graph). b p-p = k*l* ? i, b p-p(mt), k: (k factor from table), l: (inductance in uh), ? i (peak to peak ripple current in amps). rohs 2002/95/ec
sd3110 series low profile power inductors core loss 1mhz 500khz 300khz 200khz 100khz 50khz 0.000001 0.00001 0.0001 0.001 0.01 0.1 1 10 1 10 100 1000 bp-p (mt) c o r e l o s s ( w ) d imensions are in millimeters. 3.2 3.2 b1 bo a1 4.2 ao 1.75 2.0 8.0 4.0 5.5 12.0 +/ -0.3 ko a 1=0 .90mm ao=3 .9mm bo=3.6mm b1=1.2 5mm ko=1 .2mm p ar ts packaged on 13" diameter reel, 4,100 parts per reel. packaging information 1. 0 max mar king 2.0 2 plcs 4.0 1 .0 2 plcs 3 .1 max. 3 .1 max. 1.0 ty pical 3 .6 max 4 .0 max. 0 .6 typ. 2.0 typ. part marking: 3 digit marking: (1st digit: indicates inductance value per letter in part marking designator); (2nd digit: bi-weekly production date code); (3rd digit: last digit of the year produced). mechanical diagrams
ocl vs isat 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 110% 120% 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 110% 120% 130% 140% % of isat % o f o c l +85c +25c -40c inductance characteristics sd3110 series low profile power inductors temperature rise vs. loss 0 1 0 20 30 40 50 60 70 80 9 0 100 0 0.04 0.08 0.12 0.16 0.2 0.24 0.28 0.32 0.36 tot al loss (w) t e m p . r i s e ( c ) visit us on the web at www.cooperbussmann.com 1225 brok en sound pkwy . suite f boca raton, fl 33487 t el: +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 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. pm-4137 3/07 cooper electronic technologies 2007
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