SD8328 Series Low Profile Power Inductors Description RoHS •125°C maximum temperature operation 2002/95/EC •Low profile surface mount inductor •8.3mm x 9.5mm x 3.0mm shielded drum core •Ferrite core material •Inductance range from 2.7µH to 100µH •Current range from 6.6 Amps to 0.8 Amps •Frequency range up to 1MHz Applications •Buck or Boost inductor •Noise filtering output filter chokes •Notebook power/display •LCD Monitors/Displays/Televisions •Battery chargers, LCD bias supplies Packaging •Battery and Industrial power systems •Computer, DVD players •Supplied in tape and reel packaging, 1280 per reel •Portable power devices, DC-DC converters Environmental Data •Storage temperature range:-40°Cto +125°C •Operating temperature range:-40°C to +125°C (range is application specific) •Solder reflow temperature:+260°C max.for 10 seconds maximum Part Number Rated OCL (1) Irms(2) Isat (3) DCR (Ω) DCR (Ω) K-factor Inductance µH±30% Amperes Amperes mΩ@20°C mΩ@20°C (4) (µH) (Typical) (Maximum) SD8328-2R5-R 2.5 2.7 6.6 4.5 12 15.6 43 SD8328-3R3-R 3.3 3.4 6.1 4.0 14 18.0 33 SD8328-4R7-R 4.7 5.0 4.5 3.6 19 24.7 23 SD8328-7R3-R 7.3 7.6 3.4 2.9 30 39 15 SD8328-100-R 10 9.1 3.3 2.6 36 45 11 SD8328-150-R 15 14.5 2.35 2.0 53 69 7.2 SD8328-220-R 22 21.1 1.85 1.7 76 99 4.9 SD8328-330-R 33 31.9 1.45 1.4 120 156 3.3 SD8328-470-R 47 44.9 1.30 1.2 150 194 2.3 SD8328-680-R 68 64.2 0.98 1.0 220 286 1.6 SD8328-101-R 100 97.0 0.80 0.8 330 430 1.1 (1) Open Circuit Inductance Test Parameters:100kHz, 0.1V, 0.0Adc. (4) K-factor:Used to determine B p-p for core loss (see graph). (2) Irms:DC current for an approximate ∆Tof 40°C without core loss.Derating is Bp-p = K*L*∆I, B p-p(mT), K:(K factor from table), L:(Inductance in µH), necessaryfor ACcurrents.PCB layout, trace thickness and width, air-flow, and ∆I(Peak to peak ripple current in Amps). proximity of other heat generating components will affect the temperature rise.It (5) Part Number Definition:SD8328-xxx-R is recommended that the temperature of the partnotexceed 125°C under worst SD8328 = Product code and size;-xxx = Inductance value in uH; case operating conditions verified in the end application. R=decimal point;If no R is present, third character = # of zeros. (3) Isat Amperes peak for approximately 35% rolloff (@25°C) -R suffix = RoHS compliant Mechanical Diagrams TOP VIEW BOTTOM VIEW FRONT VIEW RECOMMENDED PCB LAYOUT SCHEMATIC 8.3 2.5 1.2 2.9 max typ typ 3.0 1 max 1 1.8 9.5 6.3 LEFTVIEW 5.7 XXX max typ 2 wwlly R 2 Dimensions are in millimeters. xxx = Inductance value in uH. R = decimal point. If no R is present third character = # of zeros. wwllyy = Date code, R = Revision level.

SD8328 Series Low Profile Power Inductors Packaging Information 1.5 dia 4.0 1.5 dia +0.1/-0.0 min 2.0 A 1.75 7.5 16.0 Bo B1 XXX wwlly R A1 12.0 A Ko Ao SECTION A-A Userdirection of feed Ao=9.5mm Bo=10.0 mm A1=8.5mm Parts packaged on 13" Diameter reel, B1=9.7mm 1,280 parts per reel. Ko=3.2 mm Core Loss 10 500kHz 300kHz 1MHz 1 200kHz 100kHz W) 0.1 ( s s o L e or C 0.01 0.001 0.0001 1 10 100 1000 Bp-p(mT)

SD8328 Series Low Profile Power Inductors Temperature Rise vs.Loss 160 140 120 C) (º e 100 s Ri e 80 r u at r 60 e p m e 40 T 20 0 0.0 0.2 0.4 0.6 0.8 1.0 TotalPowerLoss (W) Inductance Characteristics OCL Vs. Isat 120.0% 100.0% 80.0% L C 60.0% O % 40.0% +85 Deg.C +25 Deg.C 20.0% -40 Deg.C 0.0% 0.0% 20.0% 40.0% 60.0% 80.0% 100.0% 120.0% %Isat PM-4140 3/07 Visit us on the Web at www.cooperbussmann.com ©Cooper Electronic 1225 Broken Sound Pkwy.Suite F Boca Raton, FL 33487 Technologies 2007 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 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.