Shielded Surface Mount Inductors
MODELS HM78D1210XXXMLF
Magnecs
Features
OperangTemperatureRange-40°Cto+125°C
TemperatureRise,Maximum40°C
IdealforSEPICapplicaons,highinductance,higheciency
andexcellentcurrenthandlinginrugged,lowcostpart
UseasDC-DCconverterandinapplicaons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Schemac
Specicaons@25°C
Parallel mode
Autotransformer
and series modes
Coupled inductor,
transformer and
SEPIC modes
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 10.00±20% 0.020 8.60 11.75 3.200 41.12±25% 0.080 4.30 5.85 1.600
HM78D-1210220MLF 22.00±20% 0.040 5.40 8.20 2.700 88.00±25% 0.160 2.70 4.10 1.350
HM78D-1210330MLF 33.00±20% 0.050 4.50 6.60 2.000 132.00±25% 0.200 2.25 3.30 1.000
HM78D-1210470MLF 47.00±20% 0.065 3.70 5.50 1.900 188.00±25% 0.260 1.85 2.75 0.950
HM78D-1210560MLF 56.00±20% 0.081 3.28 4.90 0.850 224.00±25% 0.324 1.64 2.45 0.425
HM78D-1210680MLF 68.00±20% 0.098 2.96 4.45 0.800 272.00±25% 0.392 1.48 2.20 0.400
HM78D-1210101MLF 100.00±20% 0.128 2.54 3.70 0.700 400.00±25% 0.512 1.27 1.85 0.350
HM78D-1210121MLF 120.00±20% 0.170 2.38 3.40 0.630 480.00±25% 0.680 1.19 1.70 0.315
HM78D-1210331MLF 330.00±20% 0.440 1.32 2.10 0.410 1320.00±25% 1.760 0.66 1.05 0.205
HM78D-1210471MLF 470.00±20% 0.570 1.22 1.80 0.300 1880.00±25% 2.280 0.61 0.90 0.150
MechanicalOutline(mm)
Recommended PCB Patern
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saturaoncurrentatwhichinductancerollsoapproximately30%fromitsinial(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oapproximately10%fromitsinial(zeroDC)value.
GeneralNote
TTElectronicsreservestherighttomakechangesinproductspecicaonwithoutnoceorliability.
AllinformaonissubjecttoTTElectronics’owndataandisconsideredaccurateatmeofgoingtoprint.
© TT Electronics plc http://www.ttelectronics.com/magnetics/customer-service-enquiry
Rev.02 8.17
BI Technologies
A-1445, Jalan Tanjung Api
25050 Kuantan
Pahang Darul Makmur
Malaysia
Ph: +60 9 565 8888 Fax: +60 9 514 3555
Surface Mount
Coupled Inductors
MODELS HM78D1210XXXMLF
Packaging
OrderingInformaon
1) Tape and reel packaging.
2) 300pcs per 13” reel.
HM78D-1210 XXX M LF TR
Model Series
Inductance Code:
First 2 digits are significant. Last digit denotes
the number of trailing zeros. For values below 10uH, “R”
denotes the decimal point.
Tape & Reel Packing
Lead-Free
Inductance Tolerance
K=±10%
M=±20%
GeneralNote
TTElectronicsreservestherighttomakechangesinproductspecicaonwithoutnoceorliability.
AllinformaonissubjecttoTTElectronics’owndataandisconsideredaccurateatmeofgoingtoprint.
© TT Electronics plc http://www.ttelectronics.com/magnetics/customer-service-enquiry
Rev.02 8.17
BI Technologies
A-1445, Jalan Tanjung Api
25050 Kuantan
Pahang Darul Makmur
Malaysia
Ph: +60 9 565 8888 Fax: +60 9 514 3555
Shielded Surface
Mount Coupled Inductors
MODELS HM78D-128XXXXLF, HM78D-755XXXMLF
Magnecs
OperangTemperatureRange-40°Cto+125°C
TemperatureRise,Maximum40°C
OperangFrequencyUpto3MHz
RoHSCompliant
Specicaons@25°C
ElectricalSchemac
Parallel Connecon Series Connecon
Part Number L (1)
(μH)
DCR Typ. (2)
(Ω)
lsat (3)
(A)
lrms
(4)
(A)
L (1)
(μH)
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 8.2 ± 20% 0.025 10.80 6.60 32.8 ± 25% 0.100 5.60 3.30
HM78D-128100MLF 10 ± 20% 0.029 10.50 6.20 40 ± 25% 0.116 5.40 3.20
HM78D-128120MLF 12 ± 20% 0.031 9.60 6.00 48 ± 25% 0.124 4.80 2.90
HM78D-128150MLF 15 ± 20% 0.036 9.10 5.80 60 ± 25% 0.144 4.30 2.70
HM78D-128180MLF 18 ± 20% 0.040 8.00 5.50 72 ± 25% 0.158 3.90 2.50
HM78D-128220MLF 22 ± 20% 0.048 6.80 5.20 88 ± 25% 0.190 3.50 2.20
HM78D-128270MLF 27 ± 20% 0.060 6.50 4.70 108 ± 25% 0.240 3.40 2.00
HM78D-128330MLF 33 ± 20% 0.075 5.60 4.20 132 ± 25% 0.300 3.10 1.70
HM78D-128390MLF 39 ± 20% 0.080 5.50 3.60 156 ± 25% 0.320 2.80 1.60
HM78D-128470MLF 47 ± 20% 0.090 5.20 3.00 188 ± 25% 0.360 2.60 1.50
HM78D-128560MLF 56 ± 20% 0.095 4.50 2.80 224 ± 25% 0.380 2.40 1.40
HM78D-128680MLF 68 ± 20% 0.105 4.10 2.60 272 ± 25% 0.420 2.10 1.30
HM78D-128820MLF 82 ± 20% 0.140 3.80 2.30 328 ± 25% 0.560 1.90 1.20
HM78D-128101MLF 100 ± 20% 0.150 3.40 2.00 400 ± 25% 0.600 1.70 1.10
HM78D-128121KLF 120 ± 10% 0.205 3.20 1.90 480 ± 25% 0.820 1.60 1.00
HM78D-128151KLF 150 ± 10% 0.230 2.80 1.80 600 ± 25% 0.920 1.40 0.89
HM78D-128181KLF 180 ± 10% 0.255 2.50 1.70 720 ± 25% 1.02 1.30 0.84
HM78D-128221KLF 220 ± 10% 0.345 2.30 1.60 880 ± 25% 1.38 1.10 0.75
HM78D-128271KLF 270 ± 10% 0.450 2.10 1.50 1080 ± 25% 1.80 1.00 0.71
HM78D-128331KLF 330 ± 10% 0.510 1.90 1.30 1320 ± 25% 2.04 0.92 0.62
HM78D-128391KLF 390 ± 10% 0.560 1.70 1.10 1560 ± 25% 2.24 0.84 0.53
HM78D-128471KLF 470 ± 10% 0.765 1.60 0.87 1880 ± 25% 3.06 0.80 0.43
HM78D-128561KLF 560 ± 10% 0.845 1.50 0.83 2240 ± 25% 3.38 0.73 0.40
HM78D-128681KLF 680 ± 10% 1.145 1.30 0.76 2720 ± 25% 4.58 0.63 0.36
HM78D-128821KLF 820 ± 10% 1.275 1.20 0.69 4000 ± 30% 5.10 0.58 0.33
HM78D-128102KLF 1000 ± 10% 1.415 1.10 0.60 4800 ± 30% 5.66 0.56 0.30
HM78D-755R33MLF 0.33 ± 20% 0.0074 18.4 0 6.20 1.176 ± 20% 0.0295 9.18 3.10
HM78D-7551R0MLF 1.0 ± 20% 0.0100 10.20 5.33 3.808 ± 20% 0.0400 5.10 2.66
HM78D-7551R5MLF 1.5 ± 20% 0.0115 8.35 4.96 5.688 ± 20% 0.0461 4.17 2.48
HM78D-7552R2MLF 2.2 ± 20% 0.0130 7.06 4.66 7.944 ± 20% 0.0521 3.53 2.33
HM78D-7553R3MLF 3.3 ± 20% 0.0183 5.40 3.94 13.58 ± 20% 0.0732 2.70 1.97
HM78D-7554R7MLF 4.7 ± 20% 0.0254 4.37 3.34 20.73 ± 20% 0.102 2.19 1.67
Coupled Inductors, transformer and SEPIC mode Autotransformer and series mode Parallel Mode
GeneralNote
TTElectronicsreservestherighttomakechangesinproductspecicaonwithoutnoceorliability.
AllinformaonissubjecttoTTElectronics’owndataandisconsideredaccurateatmeofgoingtoprint.
© TT Electronics plc http://www.ttelectronics.com/magnetics/customer-service-enquiry
Rev.02 8.17
BI Technologies
A-1445, Jalan Tanjung Api
25050 Kuantan
Pahang Darul Makmur
Malaysia
Ph: +60 9 565 8888 Fax: +60 9 514 3555
Shielded Surface
Mount Coupled Inductors
MODELS HM78D-128XXXXLF, HM78D-755XXXMLF
HM78D - 128 4R7 M LF TR
OrderingInformaon
Model Series
Case Size:
128, 755
Inductance Code:
First 2 digits are significant. Last digit denotes
the number of trailing zeros. For values below
10μH, “R” denotes the decimal point.
Tape & Reel Packing
Lead-Free
Inductance Tolerance
K = ± 10%
M = ± 20%
Specicaons@25°Cconnued
Parallel Connecon Series Connecon
Part Number L (1)
(μH)
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 15 ± 20% 0.0637 2.48 2.11 64.36 ± 20% 0.255 1.24 1.05
HM78D-755220MLF 22 ± 20% 0.0925 2.13 1.75 86.92 ± 20% 0.371 1.07 0.874
HM78D-755330MLF 33 ± 20% 0.143 1.73 1.41 132 ± 20% 0.574 0.87 0.702
HM78D-755470MLF 47 ± 20% 0.216 1.41 1.15 198.6 ± 20% 0.865 0.71 0.573
HM78D-755680MLF 68 ± 20% 0.265 1.19 1.03 278.7 ± 20% 1.06 0.60 0.517
HM78D-755820MLF 82 ± 20% 0.345 1.11 0.91 323.8 ± 20% 1.38 0.55 0.453
HM78D-755101MLF 100 ± 20% 0.383 0.99 0.86 406.4 ± 20% 1.53 0.49 0.430
HM78D-755151MLF 150 ± 20% 0.591 0.81 0.69 600 ± 20% 2.37 0.41 0.346
HM78D-755221MLF 220 ± 20% 0.907 0.66 0.56 908 ± 20% 3.63 0.33 0.279
HM78D-755331MLF 330 ± 20% 1.41 0.54 0.45 1342 ± 20% 5.66 0.27 0.224
HM78D-755471MLF 470 ± 20% 1.74 0.46 0.40 1861 ± 20% 6.97 0.23 0.202
HM78D-755681MLF 680 ± 20% 2.58 0.38 0.33 2685 ± 20% 10.30 0.19 0.166
HM78D-755821MLF 820 ± 20% 2.93 0.35 0.31 3251 ± 20% 11.70 0.17 0.156
HM78D-755102MLF 1000 ± 20% 3.89 0.31 0.27 4036 ± 20% 15.60 0.16 0.135
Case Size A B C D E F G H I J K L M N P Q R S
128 12.5 12.5 8.05 5.0 5.0 3.5 1.5 4.2 5.5 4.5 2.0 12.8 4.2 4.5 2.0 4.2 5.5 4.5
755 7.7 7.7 4.8 3.9 2.7 1.55 0.72 2.2 2.8 3.1 1.0 7.5 2.2 3.1 1.0 2.2 2.8 3.1
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saturaoncurrentatwhichinductancerollsoapproximately30%fromitsinial(zeroDC)value.
(4)IrmsistheapproximatecurrentatwhichΔT=40°C.
Standard:
Embossed Tape and Reel
Reel: Diameter: = 13” (330.2mm)
Capacity: Case size 128 = 500 Units
Case size 755 = 1,000 Units
Packaging
OutlineDimensions(mm)
Top View Side View Bottom View Recommended Solder Pad Layout
GeneralNote
TTElectronicsreservestherighttomakechangesinproductspecicaonwithoutnoceorliability.
AllinformaonissubjecttoTTElectronics’owndataandisconsideredaccurateatmeofgoingtoprint.
© TT Electronics plc http://www.ttelectronics.com/magnetics/customer-service-enquiry
Rev.02 8.17
BI Technologies
A-1445, Jalan Tanjung Api
25050 Kuantan
Pahang Darul Makmur
Malaysia
Ph: +60 9 565 8888 Fax: +60 9 514 3555