Cooper CTX33-4A Power inductors and transformer Datasheet

®
ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers
Description
• Surface mount magnetics that can be used as single or
coupled inductors or 1:1 transformers that provide isolation
between two windings
• OCTA-PAC’s are designed around high frequency, low loss
material
• ECONO-PAC’s are a lower cost version of OCTA-PAC’s
offering high saturation flux density
• OCTA-PAC PLUS’s offer higher current ratings and higher
saturation flux densities than OCTA-PAC and ECONO-PAC
• Secure 4 Terminal Mounting
• Inductor more versatile inductance combination by series
or parallel connections
Applications
• Computer and portable power devices
• LCD panels, DVD players
• Inductor: DC-DC converters
• Buck, boost, forward, and resonant converters
• Noise filtering and filter chokes
• Transformers: 1:1 300Vdc isolation, flyback, sepic
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific).
• Infrared reflow temperature: +240°C for 30 seconds
maximum
Packaging
• Supplied in tape and reel packaging, 1100 (EP01, OPA1,
and OP01), 800 (EP02, OP02, OPA2, EP03, OPA3, and
OP03), and 600 (EP04, OPA4, and OP04) per reel
Legend
• No suffix is OCTA-PAC®
• P suffix is ECONO-PAC™
• A suffix is OCTA-PAC® PLUS
PARALLEL
Part
Number
CTX0.47-1P
CTX0.68-1P
CTX1-1P
CTX2-1P
CTX5-1P
CTX8-1P
CTX10-1P
CTX15-1P
CTX20-1P
CTX25-1P
CTX33-1P
CTX50-1P
CTX68-1P
CTX100-1P
CTX150-1P
CTX200-1P
CTX300-1P
CTX0.47-2P
CTX0.68-2P
CTX1-2P
CTX2-2P
CTX5-2P
CTX8-2P
CTX10-2P
CTX15-2P
CTX20-2P
CTX25-2P
CTX33-2P
CTX50-2P
CTX68-2P
CTX100-2P
CTX150-2P
CTX200-2P
CTX300-2P
Open Circuit
Inductance
µH +/-20%
.42
.60
1.07
2.02
4.83
8.08
9.62
15.03
20.46
25.40
32.33
50.52
68.40
99.01
150.72
198.41
299.87
.54
.85
1.22
2.18
4.90
7.65
9.83
14.99
19.58
24.79
32.67
49.10
68.85
99.14
148.10
201.59
300.42
Full Load
Inductance
µH min.
.31
.43
.73
1.36
3.37
5.31
6.23
9.62
14.12
17.07
22.27
33.57
43.65
63.64
96.64
130.79
190.05
.42
.64
.89
1.56
3.57
5.31
6.73
10.51
13.37
16.60
21.29
35.31
47.93
69.56
100.07
138.49
197.52
SERIES
Full Load
Current
Adc
DC
Resistance
ohms max.
5.50
5.10
4.50
3.40
2.00
1.80
1.70
1.40
1.00
.96
.80
.70
.66
.54
.44
.36
.32
5.90
5.40
5.00
3.90
2.50
2.30
2.10
1.60
1.50
1.40
1.30
.82
.76
.62
.56
.46
.42
.005
.006
.008
.013
.040
.052
.057
.087
.158
.177
.250
.316
.373
.557
.844
1.208
1.525
.006
.007
.008
.014
.032
.040
.045
.085
.097
.109
.126
.305
.362
.541
.665
.951
1.176
Open Circuit
Inductance
µH +/-20%
1.67
2.40
4.28
8.08
19.31
32.33
38.48
60.12
81.83
101.60
129.32
202.07
273.61
396.06
602.87
793.65
1199.46
2.18
3.40
4.90
8.70
19.58
30.60
39.30
59.98
78.34
99.14
130.70
196.38
275.40
396.58
592.42
806.34
1201.70
Full Load
Inductance
µH min.
Full Load
Current
Adc
DC
Resistance
ohms max.
1.25
1.74
2.92
5.44
13.47
21.23
24.94
38.47
56.47
68.29
89.06
134.27
174.61
254.55
386.56
523.16
760.19
1.69
2.55
3.57
6.26
14.26
21.23
26.92
42.02
53.48
66.38
85.17
141.24
191.71
278.22
400.27
553.97
790.08
2.75
2.55
2.25
1.70
1.00
.90
.85
.70
.50
.48
.40
.35
.33
.27
.22
.18
.16
2.95
2.70
2.50
1.95
1.25
1.15
1.05
.80
.75
.70
.65
.41
.38
.31
.28
.23
.21
.021
.025
.032
.054
.161
.207
.227
.348
.634
.708
1.001
1.263
1.490
2.227
3.376
4.831
6.100
.024
.029
.033
.055
.128
.158
.179
.339
.387
.436
.503
1.221
1.445
2.162
2.660
3.804
4.703
®
ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers
PARALLEL
Part
Number
CTX0.47-3P
CTX0.68-3P
CTX1-3P
CTX2-3P
CTX5-3P
CTX8-3P
CTX10-3P
CTX15-3P
CTX20-3P
CTX25-3P
CTX33-3P
CTX50-3P
CTX68-3P
CTX100-3P
CTX150-3P
CTX200-3P
CTX300-3P
CTX0.47-4P
CTX0.68-4P
CTX1-4P
CTX2-4P
CTX5-4P
CTX8-4P
CTX10-4P
CTX15-4P
CTX20-4P
CTX25-4P
CTX33-4P
CTX50-4P
CTX68-4P
CTX100-4P
CTX150-4P
CTX200-4P
CTX300-4P
CTX0.47-1
CTX0.68-1
CTX1-1
CTX2-1
CTX5-1
CTX8-1
CTX10-1
CTX15-1
CTX20-1
CTX25-1
CTX33-1
CTX50-1
CTX68-1
CTX100-1
CTX150-1
CTX200-1
CTX300-1
CTX0.47-2
CTX0.68-2
CTX1-2
CTX2-2
CTX5-2
CTX8-2
CTX10-2
CTX15-2
CTX20-2
CTX25-2
CTX33-2
CTX50-2
CTX68-2
CTX100-2
Open Circuit
Inductance
µH +/-20%
.46
.67
.91
1.85
4.74
8.16
9.79
14.50
20.15
25.33
32.63
50.02
68.84
101.31
149.85
200.10
298.39
.49
.76
1.10
1.95
5.15
7.81
9.88
14.76
20.62
25.65
33.21
48.80
67.37
99.09
149.45
200.11
298.93
.40
.63
.90
2.03
4.90
8.10
10.00
14.40
19.60
25.60
32.40
50.63
67.60
99.23
148.23
202.50
302.50
.42
.75
1.18
2.30
4.70
7.94
10.58
15.23
20.73
24.86
31.77
51.18
67.87
99.45
Full Load
Inductance
µH min.
.35
.50
.65
1.24
3.04
4.90
5.71
8.50
13.12
16.16
20.32
33.06
44.15
65.50
90.92
116.51
172.12
.37
.56
.81
1.42
3.56
5.15
6.70
9.52
13.44
17.17
22.93
32.21
43.04
69.54
101.46
131.37
188.03
.26
.41
.56
1.00
2.66
4.08
4.85
8.74
11.54
16.35
19.84
29.34
39.73
58.72
85.16
107.60
191.38
.29
.50
.76
1.27
2.66
4.18
5.18
8.53
12.36
16.09
15.90
28.79
38.71
57.45
SERIES
Full Load
Current
Adc
DC
Resistance
ohms max.
6.20
5.70
5.40
4.60
3.20
2.80
2.70
2.20
1.50
1.40
1.30
.92
.84
.68
.64
.60
.50
7.90
7.20
5.90
4.60
3.30
3.00
2.50
2.30
1.90
1.60
1.30
1.20
1.10
.72
.64
.60
.54
5.50
4.50
4.20
4.10
2.30
2.00
1.90
1.10
1.00
.74
.72
.64
.54
.44
.38
.37
.22
6.50
5.50
4.60
4.50
3.00
2.60
2.50
1.70
1.30
1.00
1.40
.92
.78
.63
.006
.007
.008
.011
.022
.030
.033
.050
.111
.125
.146
.277
.328
.501
.621
.731
.926
.005
.006
.008
.014
.027
.033
.047
.057
.084
.115
.166
.201
.238
.565
.696
.810
1.003
.005
.006
.007
.010
.030
.039
.044
.080
.146
.167
.293
.365
.516
.784
.965
1.142
1.431
.005
.006
.007
.010
.021
.027
.031
.059
.107
.117
.105
.210
.303
.457
Open Circuit
Inductance
µH +/-20%
1.85
2.66
3.63
7.40
18.94
32.63
39.15
58.02
80.59
101.31
130.54
200.10
275.35
405.22
599.40
800.38
1193.55
1.95
3.05
4.39
7.81
20.62
31.23
39.53
59.05
82.47
102.60
132.86
195.20
269.50
396.38
597.80
800.44
1195.72
1.60
2.50
3.60
8.10
19.60
32.40
40.00
57.60
78.40
102.40
129.60
202.50
270.40
396.90
592.90
810.00
1210.00
1.69
3.01
4.70
9.21
18.80
31.77
42.30
60.91
82.91
99.45
127.09
204.73
271.47
397.81
Full Load
Inductance
µH min.
Full Load
Current
Adc
DC
Resistance
ohms max.
1.42
1.98
2.62
4.97
12.15
19.60
22.85
34.01
52.48
64.66
81.30
132.24
176.61
262.02
363.68
466.03
688.50
1.49
2.24
3.24
5.69
14.23
20.61
26.79
38.09
53.76
68.68
91.72
128.83
172.16
278.15
405.83
525.47
752.13
1.05
1.63
2.24
4.01
10.64
16.34
19.40
34.96
46.15
65.42
79.37
117.38
158.92
234.88
340.64
430.39
765.54
1.17
1.98
3.04
5.07
10.65
16.72
20.72
34.10
49.46
64.35
63.59
115.16
154.83
229.79
3.10
2.85
2.70
2.30
1.60
1.40
1.35
1.10
.75
.70
.65
.46
.42
.34
.32
.30
.25
3.95
3.60
2.95
2.30
1.65
1.50
1.25
1.15
.95
.80
.65
.60
.55
.36
.32
.30
.27
2.75
2.25
2.10
2.05
1.15
1.00
.95
.55
.50
.37
.36
.32
.27
.22
.19
.19
.11
3.25
2.75
2.30
2.25
1.50
1.30
1.25
.85
.65
.50
.70
.46
.39
.32
.025
.028
.032
.045
.090
.119
.131
.198
.443
.499
.571
1.108
1.312
2.005
2.483
2.925
3.702
.019
.023
.033
.055
.107
.131
.187
.228
.337
.461
.662
.805
.952
2.259
2.784
3.240
4.011
.020
.024
.028
.040
.122
.157
.176
.319
.583
.668
1.171
1.461
2.064
3.137
3.861
4.567
5.724
.019
.024
.028
.038
.084
.108
.125
.236
.426
.466
.420
.839
1.214
1.828
®
ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers
PARALLEL
Part
Number
CTX150-2
CTX200-2
CTX300-2
CTX0.47-3
CTX0.68-3
CTX1-3
CTX2-3
CTX5-3
CTX8-3
CTX10-3
CTX15-3
CTX20-3
CTX25-3
CTX33-3
CTX50-3
CTX68-3
CTX100-3
CTX150-3
CTX200-3
CTX300-3
CTX0.47-4
CTX0.68-4
CTX1-4
CTX2-4
CTX5-4
CTX8-4
CTX10-4
CTX15-4
CTX20-4
CTX25-4
CTX33-4
CTX50-4
CTX68-4
CTX100-4
CTX150-4
CTX200-4
CTX300-4
Open Circuit
Inductance
µH +/-20%
147.39
198.58
300.80
.38
.60
.86
1.94
4.70
7.78
9.60
15.00
20.18
24.58
32.86
50.78
67.42
101.40
149.78
198.74
301.06
.44
.78
1.23
1.76
4.90
8.28
9.60
14.16
19.60
25.92
33.12
50.18
67.08
99.23
148.23
200.70
298.12
Full Load
Inductance
µH min.
93.46
122.94
169.06
.27
.42
.57
1.05
2.56
3.74
4.38
7.26
10.76
15.64
19.69
27.18
36.53
52.48
97.16
119.18
157.44
.32
.55
.85
1.06
2.59
4.29
4.82
6.76
10.68
13.32
16.82
25.03
35.29
54.56
77.17
111.08
147.92
SERIES
Full Load
Current
Adc
DC
Resistance
ohms max.
.43
.39
.38
6.00
5.00
4.80
4.70
3.00
2.80
2.70
2.00
1.50
.98
.96
.94
.80
.70
.38
.39
.40
7.00
6.00
5.00
4.90
4.40
3.50
3.40
3.00
2.10
2.00
1.80
1.50
1.20
.92
.82
.64
.62
.560
.796
1.231
.005
.006
.007
.010
.019
.025
.028
.043
.078
.086
.083
.239
.277
.345
.430
.619
.951
.004
.005
.006
.007
.014
.018
.019
.024
.055
.063
.072
.111
.157
.302
.372
.545
.672
Open Circuit
Inductance
µH +/-20%
589.57
794.30
1203.20
1.54
2.40
3.46
7.78
18.82
31.10
38.40
60.00
80.74
98.30
131.42
203.14
269.66
405.60
599.14
794.98
1204.22
1.76
3.14
4.90
7.06
19.60
33.12
38.42
56.64
78.40
103.68
132.50
200.70
268.32
396.90
592.90
802.82
1192.46
Full Load
Inductance
µH min.
Full Load
Current
Adc
DC
Resistance
ohms max.
373.84
491.76
676.24
1.08
1.67
2.28
4.22
10.26
14.98
17.54
29.06
43.04
62.56
78.77
108.71
146.11
209.93
388.63
476.71
629.75
1.29
2.21
3.41
4.24
10.37
17.14
19.28
27.03
42.73
53.27
67.27
100.11
141.15
218.25
308.69
444.32
591.66
.22
.20
.19
3.00
2.50
2.40
2.35
1.50
1.40
1.35
1.00
.75
.49
.48
.47
.40
.35
.19
.20
.20
3.50
3.00
2.50
2.45
2.20
1.75
1.70
1.50
1.05
1.00
.90
.75
.60
.46
.41
.32
.31
2.241
3.184
4.929
.020
.024
.028
.040
.077
.099
.111
.172
.312
.346
.331
.956
1.109
1.381
1.718
2.475
3.083
.016
.020
.024
.028
.056
.072
.078
.096
.220
.253
.287
.443
.630
1.210
1.488
2.180
2.687
®
ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers
Part Number
Rated
Inductance
(µH)
CTX0.33-1A
CTX0.68-1A
CTX1-1A
CTX2-1A
CTX5-1A
CTX8-1A
CTX10-1A
CTX15-1A
CTX20-1A
CTX25-1A
CTX33-1A
CTX50-1A
CTX68-1A
CTX100-1A
CTX150-1A
CTX200-1A
CTX300-1A
CTX0.33-2A
CTX0.68-2A
CTX1-2A
CTX2-2A
CTX5-2A
CTX8-2A
CTX10-2A
CTX15-2A
CTX20-2A
CTX25-2A
CTX33-2A
CTX50-2A
CTX68-2A
CTX100-2A
CTX150-2A
CTX200-2A
CTX300-2A
CTX0.33-3A
CTX0.68-3A
CTX1-3A
CTX2-3A
CTX5-3A
CTX8-3A
CTX10-3A
CTX15-3A
CTX20-3A
CTX25-3A
CTX33-3A
CTX50-3A
0.33
0.68
1.0
2.0
5.0
8.0
10.0
15.0
20.0
25.0
33.0
50.0
68.0
100.0
150.0
200.0
300.0
0.33
0.68
1.0
2.0
5.0
8.0
10.0
15.0
20.0
25.0
33.0
50.0
68.0
100.0
150.0
200.0
300.0
0.33
0.68
1.0
2.0
5.0
8.0
10.0
15.0
20.0
25.0
33.0
50.0
OCL (1)
nominal
+/-25%
(µH)
0.402
0.752
1.18
2.30
4.70
7.94
10.58
15.23
20.73
24.86
34.26
51.18
67.87
99.45
147.4
198.6
300.8
0.284
0.675
1.26
1.98
5.06
7.90
11.38
15.48
20.22
25.60
34.84
49.38
66.44
102.38
152.9
197.5
303.7
0.368
0.688
1.08
2.11
5.20
8.43
9.68
15.52
20.81
24.77
33.71
49.71
I sat. (2)
Amperes
Peak
12.5
9.4
7.5
5.36
3.75
2.88
2.5
2.08
1.79
1.63
1.39
1.14
0.99
0.82
0.67
0.58
0.47
18.8
12.5
9.38
7.50
4.69
3.75
3.13
2.68
2.34
2.08
1.79
1.50
1.29
1.04
0.85
0.75
0.60
15.0
11.3
9.0
6.43
4.09
3.21
3.00
2.37
2.05
1.88
1.61
1.32
Parallel Ratings
I rms. (3) DCR Ω (4)
Amperes
typ.
@ 20°C.
10.0
9.0
7.26
5.64
4.27
3.37
2.84
2.07
1.71
1.46
1.22
0.99
0.92
0.74
0.67
0.62
0.56
10.9
9.4
8.22
6.74
4.34
3.50
2.89
2.69
2.24
1.89
1.56
1.28
1.07
0.75
0.68
0.64
0.58
11.4
9.3
8.38
7.26
5.24
4.23
3.64
3.25
2.43
2.34
1.93
1.56
1) Open Circuit Inductance Test Parameters: 100kHz, 0.250 Vrms, 0.0 Adc
Parallel: (1,4 - 3,2) Series: (1 - 3) tie (2 - 4)
2) Peak current for approximately 30% roll-off
3) RMS current, delta temp. of 40° C ambient temperature of 85° C
4) Values @ 20° C, Maximum DCR is +15% of typical value.
0.0037
0.0046
0.0070
0.012
0.020
0.033
0.046
0.087
0.127
0.173
0.249
0.381
0.437
0.686
0.832
0.963
1.181
0.0033
0.0045
0.0058
0.0090
0.021
0.032
0.047
0.054
0.078
0.111
0.162
0.240
0.342
0.695
0.842
0.950
1.174
0.0032
0.0048
0.0059
0.0079
0.015
0.023
0.032
0.039
0.071
0.076
0.112
0.171
Volt (7)
µ-Sec
.93
1.24
1.55
2.17
3.11
4.04
4.66
5.59
6.52
7.14
8.39
10.3
11.8
14.3
17.4
20.2
24.9
.85
1.28
1.71
2.14
3.42
4.27
5.13
5.98
6.84
7.69
8.97
10.7
12.4
15.4
18.8
21.4
26.5
0.97
1.29
1.61
2.26
3.54
4.51
4.83
6.12
7.09
7.73
9.02
11.0
OCL (1)
nominal
+/-25%
(µH)
1.61
3.01
4.70
9.21
18.8
31.77
42.30
60.91
82.91
99.45
137.1
204.7
271.5
397.8
589.6
794.3
1203
1.14
2.70
5.06
7.90
20.22
31.60
45.50
61.94
80.90
102.38
139.4
197.5
265.8
409.5
611.8
790.0
1215
1.47
2.75
4.20
8.43
20.81
33.77
38.70
62.09
83.25
99.07
134.8
198.8
I sat. (2)
Amperes
Peak
6.25
4.69
3.75
2.68
1.88
1.44
1.25
1.04
0.89
0.82
0.69
0.57
0.49
0.41
0.33
0.29
0.23
9.38
6.25
4.69
3.75
2.34
1.88
1.56
1.34
1.17
1.04
0.89
0.75
0.65
0.52
0.43
0.38
0.30
7.50
5.63
4.50
3.21
2.05
1.61
1.50
1.18
1.02
0.94
0.80
0.66
Series Ratings
I rms. (3) DCR Ω (4)
Amperes
typ.
@ 20°C.
4.98
4.48
3.63
2.82
2.13
1.69
1.42
1.03
0.86
0.73
0.61
0.49
0.46
0.37
0.33
0.31
0.28
5.47
4.68
4.11
3.37
2.17
1.75
1.45
1.35
1.12
0.94
0.78
0.64
0.54
0.38
0.34
0.32
0.29
5.72
4.64
4.19
3.63
2.62
2.12
1.82
1.63
1.22
1.17
0.96
0.78
0.015
0.0185
0.0282
0.0470
0.082
0.130
0.183
0.348
0.507
0.693
0.995
1.524
1.749
2.745
3.329
3.854
4.726
0.0132
0.0180
0.0233
0.035
0.084
0.129
0.188
0.218
0.313
0.443
0.649
0.961
1.367
2.778
3.366
3.800
4.697
0.0128
0.0194
0.0238
0.0317
0.061
0.093
0.126
0.158
0.282
0.306
0.449
0.686
Volt (7)
µ-Sec
1.86
2.49
3.11
4.35
6.21
8.08
9.32
11.2
13.0
14.3
16.8
20.5
23.6
28.6
34.8
40.4
49.7
1.71
2.56
3.42
4.27
6.84
8.55
10.3
12.0
13.7
15.4
17.9
21.4
24.8
30.8
37.6
42.7
53.0
1.93
2.58
3.22
4.51
7.09
9.02
9.67
12.2
14.2
15.5
18.0
21.9
5) Hipot rating: winding to winding: 300Vdc min.
6) Turns Ratio: (1-2):(4-3) 1:1
7) Applied volt-time product (v-us) across the inductor. This value represents the
applied V-us at 300KHz necessary to generate a core loss equal to 10% of the
total losses for a 40°C temperature rise.
®
ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers
Part Number
Rated
Inductance
(µH)
CTX68-3A
CTX100-3A
CTX150-3A
CTX200-3A
CTX300-3A
CTX0.33-4A
CTX0.68-4A
CTX1-4A
CTX2-4A
CTX5-4A
CTX8-4A
CTX10-4A
CTX15-4A
CTX20-4A
CTX25-4A
CTX33-4A
CTX50-4A
CTX68-4A
CTX100-4A
CTX150-4A
CTX200-4A
CTX300-4A
68.0
100.0
150.0
200.0
300.0
0.33
0.68
1.0
2.0
5.0
8.0
10.0
15.0
20.0
25.0
33.0
50.0
68.0
100.0
150.0
200.0
300.0
OCL (1)
nominal
+/-25%
(µH)
68.80
99.07
149.7
198.8
296.2
0.313
0.744
1.39
2.18
4.26
8.70
10.53
14.70
19.58
25.14
34.80
50.11
68.21
100.57
153.5
200.4
302.8
I sat. (2)
Amperes
Peak
1.13
0.94
0.76
0.66
0.54
22.5
15.0
11.25
9.00
6.43
4.50
4.09
3.46
3.00
2.65
2.25
1.88
1.61
1.32
1.07
0.94
0.76
Parallel Ratings
I rms. (3) DCR Ω (4)
Amperes
typ.
@ 20°C.
1.28
1.05
0.86
0.71
0.56
12.2
10.6
9.23
8.38
7.21
5.49
4.67
3.87
3.62
3.02
2.49
2.05
1.70
1.37
1.10
0.92
0.75
0.253
0.379
0.571
0.829
1.309
0.0030
0.0040
0.0052
0.0063
0.0085
0.015
0.020
0.029
0.034
0.048
0.071
0.104
0.153
0.235
0.365
0.521
0.787
1) Open Circuit Inductance Test Parameters: 100kHz, 0.250 Vrms, 0.0 Adc
Parallel: (1,4 - 3,2) Series: (1 - 3) tie (2 - 4)
2) Peak current for approximately 30% roll-off
3) RMS current, delta temp. of 40° C without core loss, ambient temperature of
85°C. It is recommended that the temperature of the part not exceed 125°C
4) Values @ 20° C, Maximum DCR is +15% of typical value.
Volt (7)
µ-Sec
12.9
15.5
19.0
21.9
26.7
0.98
1.47
1.96
2.45
3.44
4.91
5.40
6.38
7.36
8.34
9.81
11.8
13.7
16.7
20.6
23.6
29.0
OCL (1)
nominal
+/-25%
(µH)
275.2
396.3
598.7
795.3
1185
1.25
2.98
5.57
8.70
17.05
34.80
42.11
58.81
78.30
100.51
139.2
200.4
272.8
402.3
613.9
801.8
1211
I sat. (2)
Amperes
Peak
0.56
0.47
0.38
0.33
0.27
11.25
7.50
5.63
4.50
3.21
2.25
2.05
1.73
1.50
1.32
1.13
0.94
0.80
0.66
0.54
0.47
0.38
Series Ratings
I rms. (3) DCR Ω (4)
Amperes
typ.
@ 20°C.
0.64
0.53
0.43
0.35
0.28
6.09
5.28
4.62
4.19
3.61
2.74
2.33
1.94
1.81
1.51
1.25
1.03
0.85
0.69
0.55
0.46
0.37
1.013
1.514
2.283
3.315
5.236
0.0119
0.0158
0.0207
0.0251
0.0339
0.059
0.081
0.117
0.135
0.193
0.283
0.418
0.612
0.939
1.462
2.085
3.148
Volt (7)
µ-Sec
25.8
30.9
38.0
43.8
53.5
1.96
2.94
3.93
4.91
6.87
9.81
10.8
12.8
14.7
16.7
19.6
23.6
27.5
33.4
41.2
47.1
57.9
5) Hipot rating: winding to winding: 300Vdc min.
6) Turns Ratio: (1-2):(4-3) 1:1
7) Applied volt-time product (v-us) across the inductor. This value represents the
applied V-us at 300KHz necessary to generate a core loss equal to 10% of the
total losses for a 40°C temperature rise.
®
ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers
Mechanical Diagrams
CTX 1, 1P, 1A Series
CTX 2, 2P, 2A Series
CTX 3, 3P, 3A Series
CTX 4, 4P, 4A Series
Dimensions in Millimeters.
wwllyy = (date code) R = revision level
®
ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers
Packaging Information
CTX 1, 1P, 1A Series
➞
Direction of Feed
Parts packaged on 13" Diameter reel,
1,100 parts per reel.
CTX 2, 2P, 2A Series
Direction of Feed
➞
Parts packaged on 13" Diameter reel,
800 parts per reel.
CTX 3, 3P, 3A Series
Direction of Feed
➞
Parts packaged on 13" Diameter reel,
800 parts per reel.
CTX 4, 4P, 4A Series
Direction of Feed
Dimensions are in millimeters.
➞
Parts packaged on 13" Diameter reel,
600 parts per reel.
®
ECONO-PAC™/OCTA-PAC®
OCTA-PAC® PLUS
Power Inductors and Transformers
Performance Characteristics
TEMPERATURE RISE VS. RATED CURRENT
INDUCTANCE VS. CURRENT
Max. Ambient plus Rise = 125°C
140
ECONO-PAC
120
Degrees C
Percentage of
Inductance
100
90
80
70
60
50
40
30
20
10
0
0.00
OCTA-PAC
100
ECONO-PAC & OCTA-PAC
80
60
40
20
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
0
0.00
2.50
0.25
0.50
Per Unit Full Load Current
+5
Percentage Change
in Inductance
1.50
1.75
2.00
2.25 2.50
• FREQUENCY RESPONSE:
Wide-band frequency response to 1 megaHertz.
OCTA-PAC
-15
1.25
• INDUCTANCE VS. FREQUENCY:
Inductance roll-off versus Frequency approximates 3% at
1 megaHertz.
ECONO-PAC
-35
1.00
• INDUCTANCE VS. CURRENT:
Inductance will fall off as DC Current is increased.
(See Inductance vs. Current graph).
INDUCTANCE VS. TEMPERATURE
+8
+6
+4
+2
+0
-2
-4
-6
-8
-10
-12
-14
0.75
Per Unit Full Load Current
+25
+45
+65
• CURRENT LIMITATION:
The maximum allowable currents are defined by the internal
“hot-spot” temperatures which are limited to 130°C, including
ambient.
+85
+105
+125
Temperature in Degrees C.
OCTA-PAC® PLUS Typical Inductance vs. DC Current
OCTA-PAC® PLUS Winding Loss Derating with Core Loss
100
50
40
30
20
10
70
Hz
0K
80
10
60
60
30
0K
Hz
20
0K
Hz
% of OCL
70
40
50
50
0K
Hz
80
20
1M
Hz
% of Losses from Irms (maximum)
0
90
90
92
94
95
96
97
98
99
0
10
0
20
40
60
80
100
% of Isat
PM-4314 1/04
© Cooper Electronic
Technologies 2004
120
140
160
180
200
20
30
40
50
60
80
100
200
300
400 500 600
800 1000
% of Applied Volt-µ-Second Rating
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Tel: +1-561-752-5000 Toll Free: +1-888-414-2645 Fax: +1-561-742-1178
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