Toroidal Inductors

Medium Current

CTP4557

MECHANICAL

ELECTRICAL SPECIFICATION

229 Colonnade Road, Nepean, Ontario, Canada K2E 7K3

Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com

An ISO 9001 Registered Company

33-6

CTP4557 is a medium current inductor with the following data and features:

• Core type:

1.57” o.d., Moly-Permalloy

Powder, perm 60.

• Power rating: 4.50 watts for temp.

rise 50˚C.

• Typical applications:

Switching Inductors in

Switch Mode Power

Supplies.

Three mounting styles are offered:

1 Flying leads (1.00”), for vertical

or horizontal mounting.

2 4-pin header, for vertical mounting.

3 Threaded center hole, flying leads

(2.00”).

Style 1

Style 2

Style 3

1.80

0.85

0.80

1.00

1.90

0.70

1.20

0.90

1.80

1.80

0.85

Thread

#10-32

2.00

0.50

Ordering Information: Substitute the style number for the asterisk (*). Example: CTP4557, Style 1, 56uH.

Order: CTP4557 - 116

* 01

3.3

0.002

53.8

44.2

73.6

122.7

* 02

3.9

0.002

51.7

40.6

67.7

112.8

* 03

4.7

0.002

49.4

37.0

61.7

102.8

* 04

5.6

0.002

47.4

33.9

56.5

94.2

* 05

6.8

0.002

45.2

30.8

51.3

85.5

* 06

8.2

0.002

43.2

28.0

46.7

77.8

* 07

10

0.003

41.2

25.4

42.3

70.5

* 08

12

0.003

39.4

23.2

38.6

64.3

* 09

15

0.003

37.3

20.7

34.5

57.5

* 10

18

0.004

31.8

18.9

31.5

52.5

* 11

22

0.005

30.2

17.1

28.5

47.5

* 12

27

0.005

28.8

15.4

25.7

42.9

* 13

33

0.008

24.4

14.0

23.3

38.8

* 14

39

0.008

23.4

12.8

21.4

35.7

* 15

47

0.011

19.9

11.7

19.5

32.5

* 16

56

0.012

19.1

10.7

17.9

29.8

Rated

I (amp.)

I (amp.)

I (amp.)

Part No.

Ind.

DCR

Current

@ Lsat.

@ Lsat.

@ Lsat.

CTP4557 - (uH)

Ohms

Amp. RMS

10%

25%

50%

Rated

I (amp.)

I (amp.)

I (amp.)

Part No.

Ind.

DCR

Current

@ Lsat.

@ Lsat.

@ Lsat.

CTP4557 - (uH)

Ohms

Amp. RMS

10%

25%

50%

* 17

68

0.017

16.2

9.7

16.2

27.0

* 18

82

0.019

15.4

8.9

14.8

24.6

* 19

100

0.021

14.7

8.0

13.4

22.3

* 20

120

0.023

14.0

7.3

12.2

20.3

* 21

150

0.032

11.8

6.6

10.9

18.2

* 22

180

0.035

11.3

6.0

10.0

16.6

* 23

220

0.049

9.6

5.4

9.0

15.0

* 24

270

0.054

9.1

4.9

8.1

13.6

* 25

330

0.060

8.7

4.4

7.4

12.3

* 26

390

0.065

8.3

4.1

6.8

11.3

* 27

470

0.072

7.9

3.7

6.2

10.3

* 28

560

0.078

7.6

3.4

5.7

9.4

* 29

680

0.086

7.2

3.1

5.1

8.5

* 30

820

0.094

6.9

2.8

4.7

7.8

* 31

1000

0.131

5.9

2.5

4.2

7.0

* 32

1200

0.181

5.0

2.3

3.9

6.4