features : applications : dvc , dsc , pda, lcd display cellular phone, hdd etc. e lectrical specification inductance [h] test dc resistance rated dc current [a] tdk identification tol. freq. [ohm] idc1 idc2 (%) [mhz] (max.) (typ.) (max.) (typ.) (typ.) vls3012t- 1r0n2r2 1.0+/ - 30% 1.0 0.070 0.058 2.2 2.5 2.2 vls3012t- 1r5n1r7 1.5+/ - 30% 1.0 0.082 0.068 1.7 1.9 2.0 vls3012t- 2r2m1r5 2.2+/ - 20% 1.0 0.098 0.082 1.5 1.7 1.9 vls3012t- 3r3m1r3 3.3+/ - 20% 1.0 0.120 0.100 1.3 1.5 1.7 vls3012t- 4r7m1r0 4.7+/ - 20% 1.0 0.156 0.130 1.0 1.2 1.4 vls3012t- 6r8mr90 6.8+/ - 20% 1.0 0.228 0.190 0.9 1.0 1.2 vls3012t- 100mr72 10+/ - 20% 1.0 0.336 0.280 0.72 0.8 1.0 vls3012t- 150mr58 15+/ - 20% 1.0 0.528 0.440 0.58 0.65 0.81 vls3012t- 220mr49 22+/ - 20% 1.0 0.756 0.630 0.49 0.55 0.67 vls3012t- 330mr40 33+/ - 20% 1.0 1.248 1.040 0.40 0.45 0.52 vls3012t- 470mr34 47+/ - 20% 1.0 1.512 1.260 0.34 0.38 0.48 note) idc 1 : depend on the inductance saturation. (-30% reduction from nominal l value) idc 2 : depend on the self temperature rise (40deg.c typ.) operating temperature range : -40deg. c ~ +105deg.c (including self temp. rise) smd power inductor under development!! a) miniature size : mount area : 3.0mm x 3.0mm low profile : 1.2mm max. height b) generic use for portable dc/dc converter. c) high magnetic shield construction should actualize high resolution for emc protection. d) automatic mounting in tape&reel package. component image & dimensions unit: mm v ls3012 type 3.0+/-0.1mm 1.2mm max 3.0+/-0.1mm p b free!! as of dec.2006
inductance vs. dc superposition characteristics ?? inductance vs d.c. current com p arison vls3012t-1r0n2r2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 500 1000 1500 2000 2500 idc[ma] l[uh] vls3012t-1r5n1r7 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 500 1000 1500 2000 idc[ma] l[uh] vls3012t-2r2m1r5 0.0 0.5 1.0 1.5 2.0 2.5 0 500 1000 1500 2000 idc[ma] l[uh] vls3012t-3r3m1r3 0.0 1.0 2.0 3.0 4.0 0 200 400 600 800 1000 1200 1400 idc[ma] l[uh] vls3012t-4r7m1r0 0.0 1.0 2.0 3.0 4.0 5.0 0 200 400 600 800 1000 1200 1400 idc[ma] l[uh] vls3012t-6r8mr90 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 0 200 400 600 800 1000 idc[ma] l[uh] VLS3012T-100MR72 0 2 4 6 8 10 12 0 100 200 300 400 500 600 700 800 idc[ma] l[uh] vls3012t-150mr58 0 5 10 15 20 0 100 200 300 400 500 600 700 idc[ma] l[uh] vls3012t-220mr49 0 4 8 12 16 20 24 28 0 100 200 300 400 500 600 idc[ma] l[uh] vls3012t-330mr40 0 5 10 15 20 25 30 35 0 100 200 300 400 500 600 idc[ma] l[uh] vls3012t-470mr34 0 10 20 30 40 50 60 0 50 100 150 200 250 300 350 400 idc[ma] l[uh] 1. lcr meter 4285a f=100khz 2. dc constant curren t a 2 1 sample test circuit l=0.1h c=20,000 ? f f = 1mh
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