Surface Mount Coupled Inductors MODELS HM78D-1210XXXMLF HM78D-1210XXXMLF * * * * * * Operating Temperature Range -40C to +125C Ambient Temperature, Maximum +85C Temperature Rise, Maximum 40C Ideal for SEPIC applications, high inductance, high efficiency and excellent current handling in rugged, low cost part Use as DC-DC converter and in applications like hand phones, CD/DVD player, digital camera, GPS system. Also used as two single inductors connected series or parallel or as 1:1 transformer RoHS Compliant Electrical Schematic Coupled inductor, transformer and SEPIC modes Autotransformer and series modes Parallel mode Specifications @ 25C Leads connected in parallel Leads connected in series Part Number L (H) DCR Max () Irated (A) Isat (A) Irms (A) L (H) DCR Max () Irated (A) Isat (A) Irms (A) HM78D-12104R7MLF 4.7020% 0.014 10.60 18.00 3.250 18.8025% 0.056 5.30 9.00 1.625 HM78D-12106R8MLF 6.8020% 0.017 10.40 14.20 3.100 27.2025% 0.068 5.20 7.10 1.550 HM78D-12108R2MLF 8.2020% 0.018 9.50 12.85 2.250 32.8025% 0.072 4.75 6.45 1.125 HM78D-1210100MLF HM78D-1210220MLF HM78D-1210330MLF HM78D-1210470MLF HM78D-1210560MLF HM78D-1210680MLF HM78D-1210101MLF HM78D-1210121MLF HM78D-1210331MLF HM78D-1210471MLF 10.0020% 22.0020% 33.0020% 47.0020% 56.0020% 68.0020% 100.0020% 120.0020% 330.0020% 470.0020% 0.020 0.040 0.050 0.065 0.081 0.098 0.128 0.170 0.440 0.570 8.60 5.40 4.50 3.70 3.28 2.96 2.54 2.38 1.32 1.22 11.75 8.20 6.60 5.50 4.90 4.45 3.70 3.40 2.10 1.80 3.200 2.700 2.000 1.900 0.850 0.800 0.700 0.630 0.410 0.300 41.1225% 88.0025% 132.0025% 188.0025% 224.0025% 272.0025% 400.0025% 480.0025% 1320.0025% 1880.0025% 0.080 0.160 0.200 0.260 0.324 0.392 0.512 0.680 1.760 2.280 4.30 2.70 2.25 1.85 1.64 1.48 1.27 1.19 0.66 0.61 5.85 4.10 3.30 2.75 2.45 2.20 1.85 1.70 1.05 0.90 1.600 1.350 1.000 0.950 0.425 0.400 0.350 0.315 0.205 0.150 Notes : (1) Inductance is measured at 100kHz, 0.1Vrms, 0Adc. (2) When leads connected in parallel, DCR is half the value. When lead connected in series, DCR is twice the value (3) Isat current is the saturation current at which inductance rolls off approximately 30% from its initial (zero DC) value. (4) Irms equals DC current, that causes component to increase by 40C from 25C ambient. (5) Irated current is the rated current at which inductance rolls off approximately 10% from its initial (zero DC) value. Mechanical Outline (mm) Recommended PCB Patern General Note TT electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT electronics' own data and is considered accurate at time of going to print. www.bitechnologies.com (c) TT electronics plc 05.12 Surface Mount Coupled Inductors MODELS HM78D-1210XXXMLF Packaging 1) Tape and reel packaging. 2) 300pcs per 13" reel. Ordering Information HM78D-1210 XXX M LF TR Model Series Tape & Reel Packing Inductance Code: First 2 digits are significant. Last digit denotes the number of trailing zeros. For values below 10uH, "R" denotes the decimal point. Lead-Free Inductance Code: First 2 digits are significant. Last digit denotes the number of trailing zeros. For values below 10H, "R" denotes the decimal point. General Note TT electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT electronics' own data and is considered accurate at time of going to print. www.bitechnologies.com (c) TT electronics plc 05.12 Shielded Surface Mount Coupled Inductors MODEL HM78D * * * * * Operating Temperature Range -40C to +125C Ambient Temperature, Maximum +85C Temperature Rise, Maximum 40C Operating Frequency Up to 3MHz RoHS Compliant Electrical Schematic Parallel Mode Autotransformer and series mode Coupled Inductors, transformer and SEPIC mode Specifications @ 25C Parallel Connection Part Number L (H) (1) DCR Typ. () Series Connection (2) lsat (A) lsat (A) (3) (4) L (H) (1) DCR Typ. (2) () lsat (3) (A) lsat (4) (A) HM78D-1284R7MLF 4.7 20% 0.019 14.90 7.40 18.8 25% 0.076 7.70 3.60 HM78D-1285R6MLF 5.6 20% 0.023 13.40 7.20 22.4 25% 0.092 6.60 3.50 HM78D-1286R8MLF 6.8 20% 0.024 13.10 6.90 27.2 25% 0.096 6.40 3.40 HM78D-1288R2MLF HM78D-128100MLF HM78D-128120MLF HM78D-128150MLF HM78D-128180MLF HM78D-128220MLF HM78D-128270MLF HM78D-128330MLF HM78D-128390MLF HM78D-128470MLF HM78D-128560MLF HM78D-128680MLF HM78D-128820MLF HM78D-128101MLF HM78D-128121KLF HM78D-128151KLF HM78D-128181KLF HM78D-128221KLF HM78D-128271KLF HM78D-128331KLF HM78D-128391KLF HM78D-128471KLF HM78D-128561KLF HM78D-128681KLF HM78D-128821KLF HM78D-128102KLF HM78D-755R33MLF HM78D-7551R0MLF HM78D-7551R5MLF HM78D-7552R2MLF HM78D-7553R3MLF HM78D-7554R7MLF 8.2 20% 10 20% 12 20% 15 20% 18 20% 22 20% 27 20% 33 20% 39 20% 47 20% 56 20% 68 20% 82 20% 100 20% 120 10% 150 10% 180 10% 220 10% 270 10% 330 10% 390 10% 470 10% 560 10% 680 10% 820 10% 1000 10% 0.33 20% 1.0 20% 1.5 20% 2.2 20% 3.3 20% 4.7 20% 0.025 0.029 0.031 0.036 0.040 0.048 0.060 0.075 0.080 0.090 0.095 0.105 0.140 0.150 0.205 0.230 0.255 0.345 0.450 0.510 0.560 0.765 0.845 1.145 1.275 1.415 0.0074 0.0100 0.0115 0.0130 0.0183 0.0254 10.80 10.50 9.60 9.10 8.00 6.80 6.50 5.60 5.50 5.20 4.50 4.10 3.80 3.40 3.20 2.80 2.50 2.30 2.10 1.90 1.70 1.60 1.50 1.30 1.20 1.10 18.4 10.20 8.35 7.06 5.40 4.37 6.60 6.20 6.00 5.80 5.50 5.20 4.70 4.20 3.60 3.00 2.80 2.60 2.30 2.00 1.90 1.80 1.70 1.60 1.50 1.30 1.10 0.87 0.83 0.76 0.69 0.60 0 6.20 5.33 4.96 4.66 3.94 3.34 32.8 25% 40 25% 48 25% 60 25% 72 25% 88 25% 108 25% 132 25% 156 25% 188 25% 224 25% 272 25% 328 25% 400 25% 480 25% 600 25% 720 25% 880 25% 1080 25% 1320 25% 1560 25% 1880 25% 2240 25% 2720 25% 4000 30% 4800 30% 1.176 20% 3.808 20% 5.688 20% 7.944 20% 13.58 20% 20.73 20% 0.100 0.116 0.124 0.144 0.158 0.190 0.240 0.300 0.320 0.360 0.380 0.420 0.560 0.600 0.820 0.920 1.02 1.38 1.80 2.04 2.24 3.06 3.38 4.58 5.10 5.66 0.0295 0.0400 0.0461 0.0521 0.0732 0.102 5.60 5.40 4.80 4.30 3.90 3.50 3.40 3.10 2.80 2.60 2.40 2.10 1.90 1.70 1.60 1.40 1.30 1.10 1.00 0.92 0.84 0.80 0.73 0.63 0.58 0.56 9.18 5.10 4.17 3.53 2.70 2.19 3.30 3.20 2.90 2.70 2.50 2.20 2.00 1.70 1.60 1.50 1.40 1.30 1.20 1.10 1.00 0.89 0.84 0.75 0.71 0.62 0.53 0.43 0.40 0.36 0.33 0.30 3.10 2.66 2.48 2.33 1.97 1.67 General Note TT electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT electronics' own data and is considered accurate at time of going to print. www.bitechnologies.com (c) TT electronics plc 05.12 Shielded Surface Mount Coupled Inductors MODEL HM78D Specifications @ 25C continued Parallel Connection L (H) (1) Part Number Series Connection DCR Typ. () lsat (A) (2) lsat (A) (3) L (H) (4) (1) DCR Typ. (2) () lsat (3) (A) lsat (4) (A) HM78D-7556R8MLF 6.8 20% 0.0418 3.67 2.60 29.38 20% 0.167 1.84 1.30 HM78D-7558R2MLF 8.2 20% 0.0441 3.40 2.53 34.26 20% 0.177 1.70 1.27 HM78D-755100MLF 10 20% 0.0489 3.17 2.41 39.53 20% 0.196 1.58 1.20 HM78D-755150MLF HM78D-755220MLF HM78D-755330MLF HM78D-755470MLF HM78D-755680MLF HM78D-755820MLF HM78D-755101MLF HM78D-755151MLF HM78D-755221MLF HM78D-755331MLF HM78D-755471MLF HM78D-755681MLF HM78D-755821MLF HM78D-755102MLF 15 20% 22 20% 33 20% 47 20% 68 20% 82 20% 100 20% 150 20% 220 20% 330 20% 470 20% 680 20% 820 20% 1000 20% 0.0637 0.0925 0.143 0.216 0.265 0.345 0.383 0.591 0.907 1.41 1.74 2.58 2.93 3.89 2.48 2.13 1.73 1.41 1.19 1.11 0.99 0.81 0.66 0.54 0.46 0.38 0.35 0.31 2.11 1.75 1.41 1.15 1.03 0.91 0.86 0.69 0.56 0.45 0.40 0.33 0.31 0.27 64.36 20% 86.92 20% 132 20% 198.6 20% 278.7 20% 323.8 20% 406.4 20% 600 20% 908 20% 1342 20% 1861 20% 2685 20% 3251 20% 4036 20% 0.255 0.371 0.574 0.865 1.06 1.38 1.53 2.37 3.63 5.66 6.97 10.30 11.70 15.60 1.24 1.07 0.87 0.71 0.60 0.55 0.49 0.41 0.33 0.27 0.23 0.19 0.17 0.16 1.05 0.874 0.702 0.573 0.517 0.453 0.430 0.346 0.279 0.224 0.202 0.166 0.156 0.135 Notes: (1) Inductance is measured at 100 kHz, 0.1Vrms without DC current. (2) DCR Typ. is only for 755 series while 128 series is of DCR Max. (3) Isat is the saturation current at which inductance rolls off approximately 30% from its initial (zero DC) value. (4) Irms is the approximate current at which T = 40C. Outline Dimensions (mm) Top View Case Size 128 755 Side View A 12.5 7.7 B 12.5 7.7 C 8.05 4.8 D 5.0 3.9 Bottom View E 5.0 2.7 F 3.5 1.55 G 1.5 0.72 Recommended Solder Pad Layout H 4.2 2.2 I 5.5 2.8 J 4.5 3.1 K 2.0 1.0 L 12.8 7.5 M 4.2 2.2 N 4.5 3.1 P 2.0 1.0 Q 4.2 2.2 R 5.5 2.8 S 4.5 3.1 Packaging Standard: Embossed Tape and Reel Reel: Diameter: Capacity: = 13" (330.2mm) Case size 128 = 500 Units Case size 755 = 1,000 Units Ordering Information HM78D - 128 4R7 M LF TR Model Series Tape & Reel Packing Case Size: 128, 755 Lead-Free Inductance Code: First 2 digits are significant. Last digit denotes the number of trailing zeros. For values below 10H, "R" denotes the decimal point. Inductance Tolerance K = 10% M = 20% General Note TT electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT electronics' own data and is considered accurate at time of going to print. www.bitechnologies.com (c) TT electronics plc 05.12