Technical Data
4304
Effective
July
2017
Supersedes
August
2006
LCPI
Toroid
power inductors
Applications
•
•
•
Filters
Buck and boost switches
Chokes
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
Environmental Data
•
Storage temperature range (Component):
-40 °C to +105 °C
Operating temperature range: -40 °C to +105 °C
(ambient plus self-temperature rise)
Solder reflow temperature:
J-STD-020
(latest revision)
compliant
•
•
Technical Data
4304
Effective
July
2017
LCPI
Toroid
power inductors
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:
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)
I
SAT
(3)
(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
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-µ
sec
(4)
Vµ
s
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
I
I
dc
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 I
SAT
. For other current levels see Chart 1.
(6)
Maximum D.C. resistance at
+20
°C.
2
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 1
OD
ID
FIGURE 2
OD
ID
10.0 +/- 3
T dia.
Ht
10.0 +/- 3
Ht
VERTICAL
SELF LEADED
MOUNT
HORIZONTAL
SELF LEADED
MOUNT
T dia.
(typ
(typ.)
X
H dia.
(typ
(typ.)
Y
H dia
(typ
(typ.)
Drawings are not to scale.
www.eaton.com/electronics
3
Technical Data
4304
Effective
July
2017
LCPI
Toroid
power inductors
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.
CONNECTION
DIAGRAM
2
FIGURE 3
A
3
FIGURE 4
OD
FIGURE 5
OD
1
B
C
C
1
4
4.0 +/
4.0 +/- 1
1.00 dia.
.00 di
(typ.)
C
3.8 +/
3.8 +/- 1
A
1
2
3
4
B
0.70 dia. (typ.)
.70d typ.)
3
2
A
4.2 +/-
4.25 +/- 1.5
3
0.50 dia.
.50 di
(typ.)
(typ. )
2
1
4
3
Pins
Pins 1 & 3: T dia.
3: di
Pins
Pins 2 & 4: 1.20 dia.
4: .20 di
Holes
Holes 1 & 3: H dia.
3:
Holes
Holes 2 & 4: 1.45 dia. 3
4: 1.
B
1.25 dia. (typ.)
.25d
Y
2
1
X
3
Y
1
4
X
4
1
2
Y
4
X
HEADER MOUNT
Drawings are not to scale.
Figure4
4
www.eaton.com/electronics
LCPI
Toroid
power inductors
Technical Data
4304
Effective
July
2017
Core loss
0
20
40
50
60
70
80
kH
z
kH
z
kH
z
kH
z
50
kH
z
20
% of Losses from Irms (maximum)
500
200
90
92
94
95
96
97
98
99
100
% of applied Volt-µ
seconds
Inductance characteristics
1000
800
600
500
400
300
% of OCL or % of Energy
200
100
80
60
50
40
30
20
10
0
50
100
150
200
250
Energy
300
% OF
I
SAT
Inductance
1000
100
200
300
400
500
600
800
40
50
60
20
30
10
80
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5
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