FILTRAN CTP4557-05

Toroidal Inductors
Medium Current
CTP4557
CTP4557 is a medium current inductor with the following data and features:
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”).
• 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.
MECHANICAL
Style 1
Style 2
1.80
Style 3
1.90
0.85
1.80
0.70
0.85
Thread
#10-32
1.80
1.20
0.80
0.90
1.00
2.00
0.50
ELECTRICAL SPECIFICATION
CTP4557
Ordering Information: Substitute the style number for the asterisk (*). Example: CTP4557, Style 1, 56uH.
Rated
Current
Amp. RMS
I (amp.)
@ Lsat.
10%
I (amp.)
@ Lsat.
50%
Part No.
Ind.
CTP4557 - (uH)
DCR
Ohms
73.6
67.7
61.7
56.5
122.7
112.8
102.8
94.2
* 17
* 18
* 19
* 20
68
82
100
120
30.8
28.0
25.4
23.2
51.3
46.7
42.3
38.6
85.5
77.8
70.5
64.3
* 21
* 22
* 23
* 24
37.3
31.8
30.2
28.8
20.7
18.9
17.1
15.4
34.5
31.5
28.5
25.7
57.5
52.5
47.5
42.9
24.4
23.4
19.9
19.1
14.0
12.8
11.7
10.7
23.3
21.4
19.5
17.9
38.8
35.7
32.5
29.8
Part No.
Ind.
CTP4557 - (uH)
DCR
Ohms
* 01
* 02
* 03
* 04
3.3
3.9
4.7
5.6
0.002
0.002
0.002
0.002
53.8
51.7
49.4
47.4
44.2
40.6
37.0
33.9
* 05
* 06
* 07
* 08
6.8
8.2
10
12
0.002
0.002
0.003
0.003
45.2
43.2
41.2
39.4
* 09
* 10
* 11
* 12
15
18
22
27
0.003
0.004
0.005
0.005
* 13
* 14
* 15
* 16
33
39
47
56
0.008
0.008
0.011
0.012
I (amp.)
@ Lsat.
25%
An ISO 9001 Registered Company
Order: CTP4557 - 116
Rated
Current
Amp. RMS
I (amp.)
@ Lsat.
10%
I (amp.)
@ Lsat.
25%
I (amp.)
@ Lsat.
50%
0.017
0.019
0.021
0.023
16.2
15.4
14.7
14.0
9.7
8.9
8.0
7.3
16.2
14.8
13.4
12.2
27.0
24.6
22.3
20.3
150
180
220
270
0.032
0.035
0.049
0.054
11.8
11.3
9.6
9.1
6.6
6.0
5.4
4.9
10.9
10.0
9.0
8.1
18.2
16.6
15.0
13.6
* 25
* 26
* 27
* 28
330
390
470
560
0.060
0.065
0.072
0.078
8.7
8.3
7.9
7.6
4.4
4.1
3.7
3.4
7.4
6.8
6.2
5.7
12.3
11.3
10.3
9.4
* 29
* 30
* 31
* 32
680
820
1000
1200
0.086
0.094
0.131
0.181
7.2
6.9
5.9
5.0
3.1
2.8
2.5
2.3
5.1
4.7
4.2
3.9
8.5
7.8
7.0
6.4
229 Colonnade Road, Nepean, Ontario, Canada K2E 7K3
Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com
33-6