LOW COST POWER INDUCTORS
Toroidal Inductors
Description
RoHS
2002/95/EC
• Low loss, powdered iron cores with stable
electrical operating characteristics maximize
inductor efficiency by minimizing copper losses
• Available in vertical and horizontal self leaded and head-
er mounted configurations
• Inductance values range from 10uH to 1000uH
• Current values range from 1.5 to 29.5 Amps
• Meets UL 94V-0 flammability standard
• Powder Iron core material
Applications
• Filters
• Buck and boost switches
• Chokes
Environmental Data
• Storage temperature range: -40°C to +105°C
• Operating ambient temperature range: -40°C to +75°C
(range is application specific)
Family Table
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:
TOROID (LCPI)
Packaging
• Supplied in bulk packaging
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
Inductance
Part Number
µH (rated)
CTX10-1-52M-R
10
CTX20-1-52M-R
20
CTX50-1-52M-R
50
CTX100-1-52M-R
100
CTX150-1-52M-R
150
CTX250-1-52M-R
250
CTX500-1-52M-R
500
CTX750-1-52M-R
750
CTX1000-1-52M-R
1000
CTX10-2-52M-R
10
20
CTX20-2-52M-R
CTX50-2-52M-R
50
CTX100-2-52M-R
100
CTX150-2-52M-R
150
CTX250-2-52M-R
250
500
CTX500-2-52M-R
CTX750-2-52M-R
750
CTX10-5-52M-R
10
CTX20-5-52M-R
20
CTX50-5-52M-R
50
CTX100-5-52M-R
100
CTX150-5-52M-R
150
250
CTX10-7-52M-R
10
CTX20-7-52M-R
20
50
CTX50-7-52M-R
100
150
10
20
50
100
10
20
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)
Amperes
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)
Amperes
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: 100kHz, 0.250Vrms, 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
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 100kHz 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.
PM-187
TOROID (LCPI)
LOW COST POWER INDUCTORS
Toroidal Inductors
Inductance Characteristics
1000
800
600
500
0
20
40
50
60
70
80
z
kH
kH
200
z
300
200
% of Losses from Irms (maximum)
400
% of OCL or % of Energy
500
100
80
60
50
40
30
20
90
92
94
95
96
97
98
0
50
100
Inductance
150
200
250
Energy
300
% OF
I
SAT
% of applied V
Core Loss
0
20
40
50
60
70
80
z
z
kH
z
kH
kH
Hz
50
k
kH
z
% of Losses from Irms (maximum)
500
200
100
90
92
94
95
96
97
98
99
150
200
250
Energy
300
20
% OF
I
SAT
% of applied Volt-µ Seconds
PM-190
1000
100
200
300
400
500
600
800
40
50
60
20
30
10
80
100
10
99
40
50
60
20
30
10
80
100
k
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