pm-133 l o w p r o f i l e s h i e l d e d d r u m ( s d 8 3 5 0 ) description ?125 maximum total temperature operation ?low profile surface mount inductor ? 8.3mm x 9.5mm x 4.5mm shielded drum core ?ferrite core material ?inductance range from 1.5 h to 100? ?current range from 9.1 amps to 0.8 amps ?frequency range up to 1mhz applications ?server/notebook power ?high power led driver, portable devices ?base station, telecom, and networking ?battery chargers, ram power supply ?industrial and automotive power systems ?noise filtering output filter chokes ?buck/boost converters, output converters environmental data ?storage temperature range: -40 to +125? ? oper ating temper ature r ange: -40 c to +125 (range is application specific) ?solder reflow temperature: +260 max. for 10 seconds maximum p ackaging ?supplied in tape and reel packaging, 750 per reel sd8350 series shielded power inductors part number rated ocl (1) irms(2) isat (3) dcr ( ) dcr ( ) k-factor inductance ? 30% amperes amperes m @20 m @20 (4) (?) (typical) (maximum) sd8350-1r8-r 1.8 1.5 5.50 9.1 11.8 14.0 16.0 sd8350-3r9-r 3.9 3.2 4.50 6.3 16.2 19.0 9.6 sd8350-4r7-r 4.7 4.2 4.10 5.5 18.5 22.0 8.5 sd8350-6r8-r 6.8 6.8 3.90 4.4 20.8 25.0 7.6 sd8350-100-r 10 9.9 3.20 4.0 31.4 36.0 6.3 sd8350-150-r 15 13.6 2.30 2.9 45.0 53.0 5.3 SD8350-220-R 22 20.4 1.80 2.6 63.5 75.0 4.4 sd8350-330-r 33 31.4 1.40 2.2 111.4 125.0 3.5 sd8350-470-r 47 44.9 1.30 1.8 130.0 150.0 2.9 sd8350-680-r 68 65.1 1.00 1.5 200.8 240.0 2.4 sd8350-101-r 100 99.7 0.80 1.3 308.0 360.0 2.0 (1) open circuit inductance test parameters: 100khz, 0.1v, 0.0adc. (2) irms: dc current for an approximate ? t 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 35% rolloff (@25) (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 ?), ? i (peak to peak ripple current in amps). (5) part number definition: sd8350-xxx-r sd8350 = 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. recommend ed p cb lay out schematic 1 2 9.5 max. 8.3 max. 4.5 max. 2.5 1.2 6.3 xx x wwlly r top view front view bottom view 5.7 2.9 1.8 1 2 left view mechanical diagrams
pm-134 l o w p r o f i l e s h i e l d e d d r u m ( s d 8 3 5 0 ) sd8350 series shielded power inductors core loss 1mhz 5 0 0khz 300khz 200khz 100khz 0. 000 1 0. 001 0. 01 0. 1 1 10 1 10 100 100 0 bp-p (mt) c o r e l o s s ( w ) 2 .0 ko=4.6 mm b 1=9.7 mm a 1=8.5 mm b o=10.0 mm ao=9.5 mm 1.5 dia + 0.1/-0.0 b o k o section a-a b 1 7.5 1 .5 dia m in a 1.75 a 4.0 u ser dir ect ion of feed 1 6.0 a o a1 12.0 xx x w wlly r parts packaged on 13" diameter reel, 750 parts per reel. packaging information
pm-135 l o w p r o f i l e s h i e l d e d d r u m ( s d 8 3 5 0 ) ocl vs. isat 0% 20% 40% 60% 80% 100% 120% 0% 20% 40% 60% 80% 100% 1 20% 140% % is at % o c l +85 de g. c +25 de g. c - 40 de g. c inductance characteristics sd8350 series shielded power inductors temperature rise vs. loss 0 20 40 60 80 100 120 140 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 t e m p e r a t u r e r i s e ( c ) total loss (w)
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