? coilcraft, inc. 2007 specifications subject to change without notice. please check our website for latest information. inductance leakage dcr srf i sat (a) 6 part 30% 2 inductance 3 typ 4 impedance typ (ohms) typ 5 10% 20% 30% number 1 (nh) typ (nh) (mohms) 1 mhz 10 mhz ( mhz) drop drop drop d1803-al_ 1000 21 0.55 1.98 19.2 27.4 0.38 0.44 0.52 power inductor C d1803-al document 619-1 document 619-1 revised 10/03/07 this power inductor was developed specifically for marvell semiconductors for use with their dsp switcher? power management chipsets 88pd8300 and 88pd830. it is also used in modules 88md8200 and 88md830 as well as in db-88pd8300 development board. 1. when ordering, please specify packaging code: d1803-al c packaging: c =7 machine-ready reel. eia-481 embossed plastic tape (750 parts per full reel). b = less than full reel. in tape, but not machine ready. to have a leader and trailer added ($25 charge), use code letter c instead. d =13 machine-ready reel. eia-481 embossed plastic tape (2500 parts per full reel). 2. inductance measured at 100 khz, 0.1 vrms, 0 adc using an agilent/ hp 4284a impedance analyzer. 3. leakage inductance tested on one winding with the other winding grounded. 4. dcr measured on keithley instruments micro-ohmmeter or equivalent. 5. srf measured using agilent/hp 8753es network analyzer. 6. dc current at which the inductance drops from its value without current. 7. current that causes the specified temperature rise from 25c ambient. 8. electrical specifications at 25c. all specifications are per winding. refer to doc 362 ?soldering surface mount components? before soldering. 0.200 5,08 0.128 3,25 0.035 0,89 0.183 4,65 0.059 1,50 0.025 0,64 0.100 2,54 0.080 2,03 0.240 6,10 0.180 4,57 0.260 6,60 max max min max 3 3 3 2 2 2 1 1 1 4 4 4 recommended land pattern 0.004 / 0,102 13 24 for marvell dsp switchers? core material ferrite terminations rohs matte tin over copper weight 0.36 g ambient temperature ?40c to +125c storage temperature component: ?40c to +125c. packaging: ?55c to +80c resistance to soldering heat max three 40 second reflows at +260c, parts cooled to room temperature between cycles moisture sensitivity level (msl) 1 (unlimited floor life at <30c / 85% relative humidity) mean time between failures (mtbf) 26,315,789 hours packaging 750/7 reel; 2500/13 reel tape: 12 mm wide, 0.3 mm thick, 4 mm pocket spacing, 3.3 mm pocket depth pcb washing only pure water or alcohol recommended
? coilcraft, inc. 2007 power inductor C d1803-al specifications subject to change without notice. please check our website for latest information. document 619-2 document 619-2 revised 10/03/07 0.1 1 10 0.01 0.1 1 current (a) inductance (h) inductance vs current inductance vs frequency impedance vs frequency 0.1 1 10 0.01 0.1 10 1 frequency (mhz) inductance (h) 0.1 1 10 100 0.1 1 100 10 frequency (mhz) impedance (ohms)
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