ECONO-PAC™/OCTA-PAC
®
OCTA-PAC
®
PLUS
Power Inductors and Transformers
Description
RoHS
2002/95/EC
• 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
core
material
• ECONO-PAC’s are a lower cost version of OCTA-PAC’s
offering high saturation flux density, Powder Iron core material
• OCTA-PAC PLUS’s offer higher current ratings and higher
saturation flux densities than OCTA-PAC and ECONO-PAC,
Amorphous metal core material
• 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).
• Solder reflow temperature: +260°C max. for 10 seconds max.
PARALLEL
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
Marking
• CTX___-__ (First three digits CTX; Second 2-3 digits =
Inductance Value; Last 1-2 digits, product size & type)
Product Size/Type
• CTX___-1 (-1 = size; no suffix = OCTA-PAC
®
)
• CTX___-1P (-1 = size; P suffix = ECONO-PAC™)
• CTX___-1A (-1 = size; A suffix = OCTA-PAC
®
PLUS)
SERIES
Part
Number
Open Circuit
Inductance
µH +/-20%
Full Load
Inductance
µH min.
Full Load
Current
Adc
DC
Resistance
ohms max.
Open Circuit
Inductance
µH +/-20%
Full Load
Inductance
µH min.
Full Load
Current
Adc
DC
Resistance
ohms max.
CTX0.47-1P-R
CTX0.68-1P-R
CTX1-1P-R
CTX2-1P-R
CTX5-1P-R
CTX8-1P-R
CTX10-1P-R
CTX15-1P-R
CTX20-1P-R
CTX25-1P-R
CTX33-1P-R
CTX50-1P-R
CTX68-1P-R
CTX100-1P-R
CTX150-1P-R
CTX200-1P-R
CTX300-1P-R
CTX0.47-2P-R
CTX0.68-2P-R
CTX1-2P-R
CTX2-2P-R
CTX5-2P-R
CTX8-2P-R
CTX10-2P-R
CTX15-2P-R
CTX20-2P-R
CTX25-2P-R
CTX33-2P-R
CTX50-2P-R
CTX68-2P-R
CTX100-2P-R
CTX150-2P-R
CTX200-2P-R
CTX300-2P-R
.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
.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
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
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
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 Ratings
I sat. (2)
I rms. (3) DCR
Ω
(4)
Amperes Amperes
max.
Peak
@ 20°C.
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
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
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
Series Ratings
I sat. (2)
I rms. (3) DCR
Ω
(4)
Amperes
Amperes
max.
Peak
@ 20°C.
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
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
Part Number
Rated
Inductance
(µH)
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
CTX0.33-1A-R
CTX0.68-1A-R
CTX1-1A-R
CTX2-1A-R
CTX5-1A-R
CTX8-1A-R
CTX10-1A-R
CTX15-1A-R
CTX20-1A-R
CTX25-1A-R
CTX33-1A-R
CTX50-1A-R
CTX68-1A-R
CTX100-1A-R
CTX150-1A-R
CTX200-1A-R
CTX300-1A-R
CTX0.33-2A-R
CTX0.68-2A-R
CTX1-2A-R
CTX2-2A-R
CTX5-2A-R
CTX8-2A-R
CTX10-2A-R
CTX15-2A-R
CTX20-2A-R
CTX25-2A-R
CTX33-2A-R
CTX50-2A-R
CTX68-2A-R
CTX100-2A-R
CTX150-2A-R
CTX200-2A-R
CTX300-2A-R
CTX0.33-3A-R
CTX0.68-3A-R
CTX1-3A-R
CTX2-3A-R
CTX5-3A-R
CTX8-3A-R
CTX10-3A-R
CTX15-3A-R
CTX20-3A-R
CTX25-3A-R
CTX33-3A-R
CTX50-3A-R
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
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
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
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) DCR @ 20°C
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
Parallel Ratings
I sat. (2)
I rms. (3) DCR
Ω
(4)
Amperes Amperes
max.
Peak
@ 20°C.
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
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
Series Ratings
I sat. (2)
I rms. (3) DCR
Ω
(4)
Amperes
Amperes
max.
Peak
@ 20°C.
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
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
Part Number
Rated
Inductance
(µH)
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
CTX68-3A-R
CTX100-3A-R
CTX150-3A-R
CTX200-3A-R
CTX300-3A-R
CTX0.33-4A-R
CTX0.68-4A-R
CTX1-4A-R
CTX2-4A-R
CTX5-4A-R
CTX8-4A-R
CTX10-4A-R
CTX15-4A-R
CTX20-4A-R
CTX25-4A-R
CTX33-4A-R
CTX50-4A-R
CTX68-4A-R
CTX100-4A-R
CTX150-4A-R
CTX200-4A-R
CTX300-4A-R
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
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
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
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) DCR @ 20°C
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.
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