Toroidal Inductors
Medium Current
CTP4557
CTP4557 is a medium current inductor with the following data and features:
• Core type: 1.57” o.d., Moly-Permalloy Three mounting styles are offered:
Powder, perm 60.
• Power rating: 4.50 watts for temp.
rise 50˚C.
• Typical applications:
Switching Inductors in
Switch Mode Power
Supplies.
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”).
MECHANICAL
Style 1
Style 2
Style 3
1.80
0.85
1.90
1.80
0.70
0.90
0.85
Thread
#10-32
1.80
1.20
2.00
0.50
1.00
0.80
ELECTRICAL SPECIFICATION
Ordering Information: Substitute the style number for the asterisk (*). Example: CTP4557, Style 1, 56uH. Order: CTP4557 - 116
Rated
I (amp.)
@ Lsat.
10%
I (amp.)
@ Lsat.
25%
I (amp.)
@ Lsat.
50%
Rated
I (amp.)
@ Lsat.
10%
I (amp.)
@ Lsat.
25%
I (amp.)
@ Lsat.
50%
Part No.
Ind.
DCR
Current
Part No.
Ind.
DCR
Current
CTP4557 - (uH) Ohms Amp. RMS
CTP4557 - (uH) Ohms Amp. RMS
* 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
73.6
67.7
61.7
56.5
122.7
112.8
102.8
94.2
* 17
* 18
* 19
* 20
68
82
100
120
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
* 05
* 06
* 07
* 08
6.8
8.2
10
0.002
0.002
0.003
0.003
45.2
43.2
41.2
39.4
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
150
180
220
270
0.032
0.035
0.049
0.054
11.8
11.3
9.6
6.6
6.0
5.4
4.9
10.9
10.0
9.0
18.2
16.6
15.0
13.6
12
9.1
8.1
* 09
* 10
* 11
* 12
15
18
22
27
0.003
0.004
0.005
0.005
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
* 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
* 13
* 14
* 15
* 16
33
39
47
56
0.008
0.008
0.011
0.012
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
* 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
An ISO 9001 Registered Company
33-6