2006 edition magnetic components selector guide we reserve the right to change specifications without prior notice www.bitechnologies.com 19 electrical / environmental ? operating temperature range -40 c to + 1 55 c ? ambient temperature, maximum 10 0 c ? temperature rise, maximum 50 c ? insulation system class f, 1 5 5 c shielded drum compact package low cost inductors specifications notes: (1) rate current, i rated , is the approximate dc current at which inductance will be decreased by 20% from its initial (zero dc) value or the current at which ? t = 50 c, whichever is lower. (2) i sat is the saturation current at which inductance rolls off approximately 30% from its initial value. (3) dc resistance is measured at 25 c. inductance 100 khz 100 khz, 0.1 v part @ 0 adc @ i rated i rated (1) i sat (2) dcr (3) dim d. dim. e number h 10% h min. h typ. (adc) (adc) m ? 5% (mm 0.5) (mm 0.1) fig. HM55-12r40 0.40 0.32 0.35 20 29 1.00 8.76 1.30 2 HM55-14r40 0.40 0.32 0.35 15 38 1.75 8.40 1.00 2 HM55-21r43 0.43 0.36 0.40 18 27 0.77 4.10 1.30 1 HM55-21r95 0.95 0.76 0.84 22.5 33 1.28 6.90 1.30 1 HM55-211r3 1.38 1.10 1.25 15 22 2.26 6.60 1.05 1 HM55-22r79 0.79 0.56 0.63 27 39 1.20 12.5 1.45 2 HM55-24r28 0.28 0.21 0.25 30 85 0.72 12.7 1.30 2 HM55-26r50 0.50 0.36 0.40 40 50 0.90 12.7 1.50 2 HM55-311r4 1.40 1.08 1.20 35 50 0.98 6.60 1.65 1 HM55-313r0 3.00 2.43 2.70 21 30 2.60 9.45 1.30 1 HM55-315r6 5.60 4.86 5.40 9 14 7.30 7.11 0.91 1 HM55-321r0 1.0 0.72 0.80 40 56 1.25 15.24 1.50 2 figure 1 figure 2 outline dimensions (inch/mm) case size fig . a b c 12 2 .295 .295 .433 7.50 7.50 11.0 14 2 .295 .295 .295 7.50 7.50 7.50 21 1 .413 .433 .413 10.5 11.0 10.5 22 2 .413 .413 .413 10.5 10.5 10.5 24 2 .413 .413 .295 10.5 10.5 7.50 26 2 .413 .413 .355 10.5 10.5 9.00 31 1 .532 .543 .532 13.5 13.8 13.5 32 2 .532 .532 .492 13.5 13.5 12.5 notes: (a) refer to specifications table for d & e dimensions of each model. (b) for case size 12 & 14, only bi logo & datecode will be printed. rohs compliant for lf models bi xxrxx yyww packaging standard : vacuum tray case size capacity per tray capacity per carton (units) (units) 12, 14, 21 40 560 22 44 660 24 50 600 26 45 630 31, 32 44 572 ???? us 6,847,280 bi xxrxx yyww refer to note (b)
www.bitechnologies.com magnetic components selector guide 2006 edition we reserve the right to change specifications without prior notice. 20 electrical characteristics @ 25 c (a) case size 12, 14, 21, 22 & 24
2006 edition magnetic components selector guide we reserve the right to change specifications without prior notice www.bitechnologies.com 21 ordering information electrical characteristics @ 25 c (contd) (b) case size 26, 31 & 32 inductance code: first 2 digits are signi?cant. last digit denotes the number of trailing zeros. for values below 10 h, r denotes the decimal point. case size: 12 = figure 2 24 = figure 2 14 = figure 2 26 = figure 2 21 = figure 1 31 = figure 1 22 = figure 2 32 = figure 2 model series HM55 21 1r3 lf lead-free option: lf= lead-free (no code used for non lead-free part)
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