Technical Data 4304
Effective July 2017
Supersedes August 2006
LCPI
Toroid power inductors
Applications
Product features
•
•
•
•
•
•
Low loss, iron powder cores with stable
electrical operating characteristics maximize
inductor efficiency by minimizing copper losses
Available in vertical and horizontal self leaded
and header mounted configurations
Inductance values range from 10 uH to 1000 uH
Current values range from 1.5 A to 29.5 A
Meets UL 94V-0 flammability standard
Iron powder core material
•
Filters
•
Buck and boost switches
•
Chokes
Environmental Data
•
Storage temperature range (Component):
-40 °C to +105 °C
•
Operating temperature range: -40 °C to +105 °C
(ambient plus self-temperature rise)
Technical Data 4304
Effective July 2017
Product Specifications
Vertical
Part Number
CTX10-1-52-R
CTX20-1-52-R
CTX50-1-52-R
CTX100-1-52-R
CTX150-1-52-R
CTX250-1-52-R
CTX500-1-52-R
CTX750-1-52-R
CTX1000-1-52-R
CTX10-2-52-R
CTX20-2-52-R
CTX50-2-52-R
CTX100-2-52-R
CTX150-2-52-R
CTX250-2-52-R
CTX500-2-52-R
CTX750-2-52-R
CTX10-5-52-R
CTX20-5-52-R
CTX50-5-52-R
CTX100-5-52-R
CTX150-5-52-R
CTX250-5-52-R
CTX10-7-52-R
CTX20-7-52-R
CTX50-7-52-R
CTX100-7-52-R
CTX150-7-52-R
CTX10-10-52-R
CTX20-10-52-R
CTX50-10-52-R
CTX100-10-52-R
CTX10-16-52-R
CTX20-16-52-R
Notes:
2
Horizontal
Part Number
CTX10-1-52LP-R
CTX20-1-52LP-R
CTX50-1-52LP-R
CTX100-1-52LP-R
CTX150-1-52LP-R
CTX250-1-52LP-R
CTX500-1-52LP-R
CTX750-1-52LP-R
CTX1000-1-52LPR
CTX10-2-52LP-R
CTX20-2-52LP-R
CTX50-2-52LP-R
CTX100-2-52LP-R
CTX150-2-52LP-R
CTX250-2-52LP-R
CTX500-2-52LP-R
CTX750-2-52LP-R
CTX10-5-52LP-R
CTX20-5-52LP-R
CTX50-5-52LP-R
CTX100-5-52LP-R
CTX150-5-52LP-R
CTX250-5-52LP-R
CTX10-7-52LP-R
CTX20-7-52LP-R
CTX50-7-52LP-R
CTX100-7-52LP-R
CTX150-7-52LP-R
CTX10-10-52LP-R
CTX20-10-52LP-R
CTX50-10-52LP-R
CTX100-10-52LPR
CTX10-16-52LP-R
CTX20-16-52LP-R
Header Mounted
Part Number
CTX10-1-52M-R
CTX20-1-52M-R
CTX50-1-52M-R
CTX100-1-52M-R
CTX150-1-52M-R
CTX250-1-52M-R
CTX500-1-52M-R
CTX750-1-52M-R
CTX1000-1-52M-R
CTX10-2-52M-R
CTX20-2-52M-R
CTX50-2-52M-R
CTX100-2-52M-R
CTX150-2-52M-R
CTX250-2-52M-R
CTX500-2-52M-R
CTX750-2-52M-R
CTX10-5-52M-R
CTX20-5-52M-R
CTX50-5-52M-R
CTX100-5-52M-R
CTX150-5-52M-R
CTX10-7-52M-R
CTX20-7-52M-R
CTX50-7-52M-R
OCL(1)
µH +/- 20%
10.14
20.22
50.29
100.40
151.70
250.90
505.00
754.40
1004.00
9.60
19.60
50.00
101.70
148.00
251.10
499.40
749.30
9.68
21.25
49.60
97.20
150.60
254.40
10.04
20.96
52.27
101.40
152.80
10.04
21.17
52.37
99.38
9.90
19.24
I DC(2)
(A)
2.4
1.8
2.6
2.5
2.1
1.9
1.7
1.8
1.5
4.7
3.2
4.9
4.4
4.3
4.2
3.1
3.4
8.7
7.8
7.6
8.2
7.7
9.2
11.4
11.4
10.5
12.0
12.8
16.9
16.0
13.9
17.6
27.3
31.5
I SAT(3)
(A)
2.1
2.2
2.7
2.4
2.3
2.2
1.9
2.4
2.1
4.5
3.2
4.9
4.3
4.0
4.2
3.3
3.4
11.1
9.3
9.4
7.5
7.5
8.1
13.5
14.5
10.2
9.1
10.5
20.9
16.0
12.7
13.0
29.3
29.5
Volt-µsec(4)
Vµs
5.4
7.8
16.3
27.5
35.7
47.8
77.9
114.3
131.9
6.6
9.4
21.3
35.0
47.6
66.0
104.0
147.3
9.4
16.0
29.3
45.7
66.0
102.4
11.0
19.1
33.5
54.2
79.3
13.2
21.3
38.9
64.0
16.9
28.1
Energy(5)
µJ
15
36
130
197
283
421
645
1530
1530
68
69
420
643
829
1540
1890
2960
417
643
1530
1890
2960
5860
640
1540
1900
2960
5900
1530
1900
2960
5880
2970
5860
DCR (Ω)(6)
max
0.0481
0.0829
0.0715
0.1060
0.1620
0.2210
0.3610
0.4340
0.6380
0.0183
0.0392
0.0326
0.0534
0.0719
0.0833
0.1830
0.2080
0.0104
0.0260
0.0248
0.0267
0.0401
0.0400
0.0080
0.0110
0.0163
0.0167
0.0204
0.0051
0.0070
0.0124
0.0109
0.0032
0.0034
(1) Open circuit inductance test parameters: 100 kHz, 0.250 Vrms, 0 Adc.
(2) DC current for an approximate ∆T of 30 °C at +75 °C Ambient with no core loss. See Chart 2 for derating of IIdc with core loss.
(3) Peak current for an approximate 30% roll-off in OCL. For other current levels see Chart 1.
(4) Applied Volt-Time product (Vµs) across the inductor. This value represents the Vµs at 100 kHz necessary to generate a core loss equal to 10% of the total
losses for 30°C rise. For other frequencies and operating levels see Chart 2. (Note: skin effect losses not included.)
(5) Energy storage (µJ) at ISAT. For other current levels see Chart 1.
(6) Maximum D.C. resistance at +20 °C.
www.eaton.com/electronics
LCPI
Toroid power inductors
Technical Data 4304
Effective July 2017
Dimensions- mm
Vertical and Horizontal Self Leaded Mounting Options
Vertical P/N
See Figure 1
CTX10-1-52-R
CTX20-1-52-R
CTX50-1-52-R
CTX100-1-52-R
CTX150-1-52-R
CTX250-1-52-R
CTX500-1-52-R
CTX750-1-52-R
CTX1000-1-52-R
CTX10-2-52-R
CTX20-2-52-R
CTX50-2-52-R
CTX100-2-52-R
CTX150-2-52-R
CTX250-2-52-R
CTX500-2-52-R
CTX750-2-52-R
CTX10-5-52-R
CTX20-5-52-R
CTX50-5-52-R
CTX100-5-52-R
CTX150-5-52-R
CTX250-5-52-R
CTX10-7-52-R
CTX20-7-52-R
CTX50-7-52-R
CTX100-7-52-R
CTX150-7-52-R
CTX10-10-52-R
CTX20-10-52-R
CTX50-10-52-R
CTX100-10-52-R
CTX10-16-52-R
CTX20-16-52-R
Horizontal P/N
See Figure 2
CTX10-1-52LP-R
CTX20-1-52LP-R
CTX50-1-52LP-R
CTX100-1-52LP-R
CTX150-1-52LP-R
CTX250-1-52LP-R
CTX500-1-52LP-R
CTX750-1-52LP-R
CTX1000-1-52LP-R
CTX10-2-52LP-R
CTX20-2-52LP-R
CTX50-2-52LP-R
CTX100-2-52LP-R
CTX150-2-52LP-R
CTX250-2-52LP-R
CTX500-2-52LP-R
CTX750-2-52LP-R
CTX10-5-52LP-R
CTX20-5-52LP-R
CTX50-5-52LP-R
CTX100-5-52LP-R
CTX150-5-52LP-R
CTX250-5-52LP-R
CTX10-7-52LP-R
CTX20-7-52LP-R
CTX50-7-52LP-R
CTX100-7-52LP-R
CTX150-7-52LP-R
CTX10-10-52LP-R
CTX20-10-52LP-R
CTX50-10-52LP-R
CTX100-10-52LP-R
CTX10-16-52LP-R
CTX20-16-52LP-R
OD
(max)
8.6
9.1
16.2
15.5
20.7
20.9
24.0
29.8
29.8
12.7
12.5
21.6
24.0
30.6
31.2
36.7
43.3
22.2
24.5
32.3
37.8
46.4
53.7
25.7
32.4
39.0
48.5
54.5
34.0
40.5
47.5
57.0
50.3
59.0
ID
(typ)
0.0
0.0
4.2
4.2
6.6
6.0
9.0
11.7
11.7
0.0
0.0
6.1
8.8
11.2
9.1
11.7
19.9
5.4
8.8
10.1
11.2
18.8
18.8
6.5
8.5
10.8
17.1
17.1
7.0
9.0
17.1
15.0
13.0
13.0
Ht
(max)
4.7
6.7
9.0
12.4
9.4
13.0
15.3
17.4
17.1
7.8
7.5
13.6
16.6
11.4
19.0
14.8
18.2
13.9
16.6
18.9
16.8
19.8
24.3
18.0
19.8
16.8
21.8
25.4
21.4
18.0
21.3
27.5
24.0
28.0
X
(typ)
3.8
5.6
7.5
10.7
7.8
11.0
14.0
15.6
15.5
6.3
6.3
11.0
13.9
9.3
15.7
12.5
15.8
11.5
14.5
16.5
13.6
16.8
20.1
16.0
16.8
13.9
17.2
21.2
17.0
14.3
17.5
21.3
18.6
23.0
Y
(typ)
7.3
7.4
13.7
13.7
18.8
18.8
21.2
28.2
28.0
11.0
11.0
19.5
21.8
28.5
28.5
34.5
41.5
19.9
22.0
28.8
35.5
43.4
49.4
22.4
29.2
35.7
43.4
50.9
29.6
35.2
42.8
50.6
43.0
50.7
T
(typ)
0.42
0.37
0.58
0.58
0.52
0.52
0.52
0.52
0.46
0.71
0.58
0.89
0.89
0.80
0.89
0.71
0.80
1.11
0.89
1.11
1.24
1.24
1.38
1.38
1.38
1.38
1.73
1.73
1.73
1.73
1.73
2.15
2.41
2.69
H
(typ)
0.67
0.62
0.83
0.83
0.77
0.77
0.77
0.77
0.71
0.96
0.83
1.14
1.14
1.05
1.14
0.96
1.05
1.36
1.14
1.36
1.49
1.49
1.63
1.63
1.63
1.63
1.98
1.98
1.98
1.98
1.98
2.45
2.70
2.99
Note: All dimensions are in millimeters.
FIGURE 2
FIGURE 1
OD
ID
ID
OD
10.0 +/- 3
T dia.
Ht
Ht
10.0 +/- 3
VERTICAL
SELF LEADED
MOUNT
HORIZONTAL
SELF LEADED
MOUNT
T dia.
(typ.)
(typ
H dia
(typ.)
(typ
X
H dia.
(typ.)
(typ
Y
Drawings are not to scale.
www.eaton.com/electronics
3
Technical Data 4304
Effective July 2017
Dimensions- mm
Header Mounted Option
Header Mounted
Part Number
CTX10-1-52M-R
CTX20-1-52M-R
CTX50-1-52M-R
CTX100-1-52M-R
CTX150-1-52M-R
CTX250-1-52M-R
CTX500-1-52M-R
CTX750-1-52M-R
CTX1000-1-52M-R
CTX10-2-52M-R
CTX20-2-52M-R
CTX50-2-52M-R
CTX100-2-52M-R
CTX150-2-52M-R
CTX250-2-52M-R
CTX500-2-52M-R
CTX750-2-52M-R
CTX10-5-52M-R
CTX20-5-52M-R
CTX50-5-52M-R
CTX100-5-52M-R
CTX150-5-52M-R
CTX10-7-52M-R
CTX20-7-52M-R
CTX50-7-52M-R
See
Figure #
3
3
4
4
4
5
5
5
5
3
3
5
5
5
5
5
5
5
5
5
5
5
5
5
5
OD
(max)
8.6
9.1
16.2
15.5
20.7
20.9
24.0
29.8
29.8
12.7
12.5
21.6
24.0
30.6
31.2
36.7
43.3
22.2
24.5
32.3
37.8
46.4
25.7
32.4
39.0
A
(max)
9.4
9.4
19.6
19.6
19.6
31.0
35.4
35.4
35.4
13.6
13.6
31.0
35.4
31.0
35.4
31.0
35.4
31.0
35.4
35.4
35.4
35.4
35.4
35.4
35.4
B
(max)
9.4
9.4
16.1
16.1
16.1
16.0
21.7
21.7
21.7
11.4
11.4
16.0
21.7
16.0
21.7
16.0
21.7
16.0
21.7
21.7
21.7
21.7
21.7
21.7
21.7
C
(max)
6.9
9.0
20.0
19.7
24.2
22.5
25.0
31.6
31.2
11.7
11.4
23.5
26.0
32.5
33.4
38.4
45.4
22.7
25.5
33.7
40.2
47.0
26.7
34.2
40.3
X
(typ)
6.5
6.5
15.3
15.3
15.3
20.3
23.0
23.0
23.0
10.8
10.8
20.3
23.0
20.3
23.0
20.3
23.0
20.3
23.0
23.0
23.0
23.0
23.0
23.0
23.0
Y
(typ)
6.5
6.5
6.4
6.4
6.4
10.2
15.4
15.4
15.4
7.5
7.5
10.2
15.4
10.2
15.4
10.2
15.4
10.2
15.4
15.4
15.4
15.4
15.4
15.4
15.4
T
(typ)
—
—
—
—
—
1.20
1.20
1.20
1.20
—
—
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.20
1.11
1.24
1.24
1.38
1.38
1.38
H
(typ)
—
—
—
—
—
1.45
1.45
1.45
1.45
—
—
1.45
1.45
1.45
1.45
1.45
1.45
1.45
1.45
1.36
1.49
1.49
1.63
1.63
1.63
Note: All dimensions are in millimeters.
FIGURE 3
CONNECTION
DIAGRAM
FIGURE 4
A
FIGURE 5
OD
OD
2
3
1
B
C
1
C
4
3
4.2
4.
25 +/+/- 1.5
4.0
4.
0+
+//- 1
1.0
.00
0 di
dia.
(typ.)
C
3.8
3.
8+
+//- 1
0.5
.50
0 di
dia.
(typ.))
(typ.
A
A
1
4
B
2
0.70
.70d
dia. (typ.
typ.))
2
1
4
2
3
3
3
2
Holes
Hole
s 1 & 3:
3: H dia.
Holes 2 & 4:
Holes
4: 1.
1.45 dia. 3
1
4
1.25
.25d
dia. (typ.)
Y
2
3
1
4
Pins 1 & 3:
Pins
3: T di
dia.
Pins
Pin
s 2 & 4:
4: 1.2
.20
0 di
dia.
Y
Y
4
1
HEADER MOUNT
X
X
Drawings are not to scale.
Figure4
4
www.eaton.com/electronics
B
X
LCPI
Toroid power inductors
Technical Data 4304
Effective July 2017
Core loss
0
40
50
60
70
kH
z
20
kH
z
kH
z
50
100
200
90
kH
z
kH
z
80
500
% of Losses from Irms (maximum)
20
92
94
95
96
97
98
% of applied Volt-µ seconds
800
1000
500
600
400
300
200
100
80
40
50
60
30
10
20
99
Inductance characteristics
1000
800
600
500
400
% of OCL or % of Energy
300
200
100
80
60
50
40
30
20
10
0
50
100
150
200
250
300
% OF I SAT
Inductance
Energy
www.eaton.com/electronics
5
LCPI
Toroid power inductors
Technical Data 4304
Effective July 2017
Wave solder profile- Through-hole components
Reflow soldering not recommended
Life Support Policy: Eaton does not authorize the use of any of its products for use in life support devices or systems without the express written
approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly
used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.
Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also
reserves the right to change or update, without notice, any technical information contained in this bulletin.
Eaton
Electronics Division
1000 Eaton Boulevard
Cleveland, OH 44122
United States
www.eaton.com/electronics
© 2017 Eaton
All Rights Reserved
Printed in USA
Publication No. 4304
July 2017
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
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