Shielded Cube Compact Package

Low Cost Inductors

Model HM55

Magnetics

Features and Benefits

Operating Temperature Range -40°C to +155°C

Temperature Rise, Maximum 50°C

Operating Frequency Up to 400kHz

RoHS Compliant

Patented US 6,847,280

Notes: (1)Ratedcurrent,Irated,istheapproximateDCcurrentatwhichinductancewillbedecreasedby20%fromitsinitial(zeroDC)valueorthecurrentatwhichΔT=50°C,whicheverislower.

(2)Isatisthesaturationcurrentatwhichinductancerollsoffapproximately30%fromitsinitialvalue.

(3)DCresistanceismeasuredat25°C.

Specifications

Outline Dimensions (Inch/mm)

Part

Number

Inductance

I

rated

(1)

(Adc)

I

sat

(2)

(Adc)

mΩ ± 5%

Dim D.

(mm ± 0.5)

Dim. E

(mm ± 0.1)

Fig.

100 kHz

@ 0 Adc

100 kHz, 0.1 V

@ I

rated

μH ± 10%

μH Min.

μH Typ.

HM55-12R40LF

0.40

0.32

0.35

20

29

1.00

8.76

1.30

2

HM55-14R40LF

0.40

0.32

0.35

15

38

1.75

8.40

1.00

2

HM55-21R43LF

0.43

0.36

0.40

18

27

0.77

4.10

1.30

1

HM55-21R95LF

0.95

0.76

0.84

22.5

33

1.28

6.90

1.30

1

HM55-211R3LF

1.38

1.10

1.25

15

22

2.26

6.60

1.05

1

HM55-22R79LF

0.79

0.56

0.63

27

39

1.20

12.5

1.45

2

HM55-24R28LF

0.28

0.21

0.25

30

85

0.72

12.7

1.30

2

HM55-26R50LF

0.5

0.36

0.40

40

50

0.90

12.7

1.50

2

HM55-311R4LF

1.40

1.08

1.20

35

50

0.98

6.60

1.65

1

HM55-313R0LF

3.00

2.43

2.70

21

30

2.60

9.45

1.30

1

HM55-315R6LF

5.6

4.86

5.40

9

14

7.30

7.11

0.91

1

HM55-321R0LF

1.0

0.72

0.80

40

56

1.25

15.24

1.50

2

Case Size

Fig.

A

B

C

12

2

0.295

0.295 0.433

7.50

7.50

11.0

14

2

0.295

0.295 0.295

7.50

7.50

7.50

21

1

0.413

0.433 0.413

10.5

11.0

10.5

22

2

0.413

0.413 0.413

10.5

10.5

10.5

24

2

0.413

0.413 0.295

10.5

10.5

7.50

26

2

0.413

0.413 0.355

10.5

10.5

9.00

31

1

0.532

0.543 0.532

13.5

13.8

13.5

32

2

0.532

0.532 0.492

13.5

13.5

12.5

2009/10 EDITION MAGNETIC COMPONENTS SELECTOR GUIDE

We reserve the right to change specifications without prior notice.

www.bitechnologies.com

43

HM55-12R40LF

0.40

0.32

0.35

20

29

1.00

8.76

1.30

2

HM55-14R40LF

0.40

0.32

0.35

15

38

1.75

8.40

1.00

2

HM55-21R43LF

0.43

0.36

0.40

18

27

0.77

4.10

1.30

1

HM55-21R95LF

0.95

0.76

0.84

22.5

33

1.28

6.90

1.30

1

HM55-211R3LF

1.38

1.10

1.25

15

22

2.26

6.60

1.05

1

HM55-22R79LF

0.79

0.56

0.63

27

39

1.20

12.5

1.45

2

HM55-24R28LF

0.28

0.21

0.25

30

85

0.72

12.7

1.30

2

HM55-26R50LF

0.50

0.36

0.40

40

50

0.90

12.7

1.50

2

HM55-311R4LF

1.40

1.08

1.20

35

50

0.98

6.60

1.65

1

HM55-313R0LF

3.00

2.43

2.70

21

30

2.60

9.45

1.30

1

HM55-315R6LF

5.60

4.86

5.40

9

14

7.30

7.11

0.91

1

HM55-321R0LF

1.0

0.72

0.80

40

56

1.25

15.24

1.50

2

Electrical / Environmental

• Operating Temperature Range

-40°C to +155°C

• Ambient Temperature, Maximum

100°C

• Temperature Rise, Maximum

50°C

• Insulation System

Class F, 155°C

• Operating Frequency

Up to 400kHz

Shielded Drum Compact Package Low Cost Inductors

Specifications

∆T = 50°C, whichever is lower.

(3) DC resistance is measured at 25°C.

Inductance

100 kHz

100 kHz, 0.1 V

Part

@ 0 Adc

Dim D.

Dim. E

Number

µH ± 10%

µH Min.

µH Typ.

(Adc)

(Adc)

(mm ± 0.5)

(mm ± 0.1)

Fig.

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

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

HM55

US 6,847,280

RoHS

Compliant

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.

General Note

TTElectronicsreservestherighttomakechangesinproductspecificationwithoutnoticeorliability.

AllinformationissubjecttoTTElectronics’owndataandisconsideredaccurateattimeofgoingtoprint.

©TTElectronicsplc

Rev.02 7.17

BI Technologies

A-1445, Jalan Tanjung Api

25050 Kuantan

Pahang Darul Makmur

Malaysia

Ph: +60 9 565 8888 Fax: +60 9 514 3555

http://www.ttelectronics.com/magnetics/customer-service-enquiry