Magnetics Make Possible Shielded Surface Mount Inductors MODELS HM78D1210XXXMLF Features Operating Temperature Range -40°C to +125°C Temperature Rise, Maximum 40°C 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 @ 25°C Leads connected in parallel Leads connected in series Part Number L (μH) DCR Max (Ω) Irated (A) Isat (A) Irms (A) L (μH) DCR Max (Ω) Irated (A) Isat (A) Irms (A) HM78D-12104R7MLF 4.70±20% 0.014 10.60 18.00 3.250 18.80±25% 0.056 5.30 9.00 1.625 HM78D-12106R8MLF 6.80±20% 0.017 10.40 14.20 3.100 27.20±25% 0.068 5.20 7.10 1.550 HM78D-12108R2MLF 8.20±20% 0.018 9.50 12.85 2.250 32.80±25% 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 10.00±20% 22.00±20% 33.00±20% 47.00±20% 56.00±20% 68.00±20% 100.00±20% 120.00±20% 330.00±20% 470.00±20% 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 41.12±25% 88.00±25% 132.00±25% 188.00±25% 224.00±25% 272.00±25% 400.00±25% 480.00±25% 1320.00±25% 1880.00±25% 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 40°C from 25°C 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.ttelectronicsmagnetics.com © TT Electronics plc Rev. 01 Surface Mount Coupled Inductors Make Possible MODELS HM78D1210XXXMLF 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 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.ttelectronicsmagnetics.com © TT Electronics plc Rev. 01 Magnetics Make Possible Shielded Surface Mount Coupled Inductors MODELS HM78D-128XXXXLF, HM78D-755XXXMLF Operating Temperature Range -40°C to +125°C Temperature Rise, Maximum 40°C Operating Frequency Up to 3MHz RoHS Compliant Electrical Schematic Parallel Mode Autotransformer and series mode Coupled Inductors, transformer and SEPIC mode Specifications @ 25°C Parallel Connection Part Number L (μH) (1) DCR Typ. (Ω) Series Connection lsat (A) (2) lrms (A) (3) (4) L (μH) (1) DCR Typ. (2) (Ω) lsat (3) (A) lrms(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.ttelectronicsmagnetics.com © TT Electronics plc Rev. 01 Shielded Surface Mount Coupled Inductors Make Possible MODELS HM78D-128XXXXLF, HM78D-755XXXMLF Specifications @ 25°C continued Parallel Connection L (1) (μH) Part Number Series Connection DCR Typ. (2) (Ω) lsat (3) (A) lrms (4) (A) L (1) (μH) DCR Typ. (2) (Ω) lsat (3) (A) lrms(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 ΔT = 40°C. 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 10μH, “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.ttelectronicsmagnetics.com © TT Electronics plc Rev. 01