pm-126 low profile shielded drum (sd8328) description ? 125c maximum temperature operation ? low profile surface mount inductor ? 8.3mm x 9.5mm x 3.0mm shielded drum core ? ferrite core material ? inductance range from 2.7h to 100h ? 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 ? battery and industrial power systems ? computer, dvd players ? portable power devices, dc-dc converters 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, 1280 per reel sd8328 series low profile power inductors part number rated ocl (1) irms(2) isat (3) dcr ( ) dcr ( ) k-factor inductance h30% amperes amperes m @20c m @20c (4) (h) (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. (2) irms: dc current for an approximate t of 40c without core loss. derating is necessary for ac currents. pcb lay out, 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 35% rolloff (@25c) (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 h), i (peak to peak ripple current in amps). (5) part number definition: sd8328-xxx-r sd8328 = 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 rohs 2002/95/ec 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. recommended pcb layout schematic 1 2 9.5 max 8.3 max 3.0 max 2.5 typ 1.2 typ 6.3 typ xxx wwlly r top view front view bottom view 5.7 2.9 1.8 1 2 left view mechanical diagrams
pm-127 low profile shielded drum (sd8328) sd8328 series low profile power inductors core loss 100khz 200khz 300khz 500khz 1mhz 0.0001 0.001 0.01 0.1 1 10 1 10 100 1000 bp-p (mt) core loss (w) wwlly r xxx 12.0 a1 ao 16.0 user direction of feed 4.0 a 1.75 a 1.5 dia min 7.5 1.5 dia +0.1/-0.0 b 1 section a-a ko bo ao=9.5 mm bo=10.0 mm a1=8.5 mm b1=9.7 mm ko=3.2 mm 2.0 parts packaged on 13" diameter reel, 1,280 parts per reel. packaging information
pm-128 low profile shielded drum (sd8328) ocl vs. isat 0.0% 20.0% 40.0% 60.0% 80.0% 100.0% 120.0% 0.0% 20.0% 40.0% 60.0% 80.0% 100.0% 120.0% % isat % ocl +85 deg.c +25 deg.c -40 deg.c inductance characteristics sd8328 series low profile power inductors temperature rise vs. loss 0 20 40 60 80 100 120 1 40 160 0.0 0.2 0.4 0.6 0.8 1.0 total power loss (w) temperature rise (oc)
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