Shielded Surface

Mount Coupled Inductors

MODELS HM78D-128XXXXLF, HM78D-755XXXMLF

Make Possible

Magnetics

OperatingTemperatureRange-40°Cto+125°C

TemperatureRise,Maximum40°C

OperatingFrequencyUpto3MHz

RoHSCompliant

Specifications@25°C

ElectricalSchematic

Parallel Connection

Series Connection

Part Number

(μH)

(Ω)

l

sat

(3)

(A)

l

rms

(4)

(A)

(μH)

(Ω)

l

sat

(3)

(A)

l

rms

(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

Rev. 01

GeneralNote

TTElectronicsreservestherighttomakechangesinproductspecificationwithoutnoticeorliability.

AllinformationissubjecttoTTElectronics’owndataandisconsideredaccurateattimeofgoingtoprint.

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